ORCID Profile
0000-0003-2718-544X
Current Organisation
Flinders University
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Structural Engineering | Materials Engineering | Palaeontology (incl. Palynology) | Organic Chemistry | Organic Green Chemistry | Biomechanical Engineering | Biomedical Engineering | Control Systems, Robotics and Automation | Construction Materials | Nanomaterials | Industrial Chemistry | Functional Materials | Dynamics, Vibration and Vibration Control | Manufacturing Processes and Technologies (excl. Textiles) | Ship and Platform Structures | Solid Mechanics | Mechanical Engineering | Maritime Engineering | Naval Architecture | Composite and Hybrid Materials | Bioprocessing, Bioproduction and Bioproducts | Marine Engineering
ANZSRC Socio-Economic Objective (SEO)
Navy | Expanding Knowledge in Engineering | Polymeric Materials (e.g. Paints) | Metals (e.g. Composites, Coatings, Bonding) | Emerging Defence Technologies | Inorganic Industrial Chemicals | Organic Industrial Chemicals (excl. Resins, Rubber and Plastics) | Management of Solid Waste from Plant Production | Plastic Products (incl. Construction Materials) | Construction Materials Performance and Processes not elsewhere classified | Scientific Instruments | Expanding Knowledge in the Agricultural and Veterinary Sciences |
Related Links
Publications
Polylactic Acid Based Rubber Composites and Nanocomposites
Publisher: Springer International Publishing
Date: 2017
Carboxylmethyl konjac glucomannan conjugated polydopamine composites for Pb(II) removal
Publisher: Elsevier BV
Date: 04-2017
DOI: 10.1016/J.CARBPOL.2017.01.048
Abstract: Carboxylmethyl konjac glucomannan conjugated polydopamine (CMKGM-PDA) composite was successfully prepared using a cost-effective method. CMKGM-PDA exhibited excellent adsorption performance for the removal of Pb(II) and could be a convenient agent for recovery. The Langmuir linear model was suitable for describing the adsorption process of Pb(II). The maximum adsorption capacity was 95.24mgg
Theoretical understanding of bio-interfaces/bio-surfaces by simulation: A mini review
Publisher: Elsevier BV
Date: 12-2016
Thin-film flow technology in controlling the organization of materials and their properties
Publisher: Authorea, Inc.
Date: 27-07-2023
DOI: 10.22541/AU.169050077.78350335/V1
Abstract: Centrifugal and shear forces are produced when solids or liquids rotate. Rotary systems and devices that use these forces, such as dynamic thin-film flow technology, are evolving continuously, improving material structure-property relationships at the nanoscale, representing a rapidly thriving and expanding field of research high with green chemistry metrics, consolidated at the inception of science. The vortex fluidic device (VFD) provides many advantages, with fluidic waves causing high shear and producing large surface areas for micro-mixing as well as rapid mass and heat transfer, enabling reactions beyond diffusion control in the processing. Combining these abilities allows for a green and innovative approach to altering materials for various research and industry applications by controlling small-scale flows and regulating molecular and macromolecular chemical reactivity, self-organization phenomena, and the synthesis of novel materials. This review highlights the aptitude of the VFD as clean technology, with an increase in efficiency for a ersity of top-down, bottom-up, and novel material transformations, benefiting from effective vortex-based processing for the transformation of material structure-property relationships.
Design carboxymethyl cotton knitted fabrics for wound dressing applications: Solvent effects
Publisher: Elsevier BV
Date: 12-2015
Functionalised silica/epoxy nanocomposites with enhanced fracture toughness for large-scale applications
Publisher: SAGE Publications
Date: 11-05-2014
Abstract: A small amount of commercial functional nanosilica was mechanically mixed with epoxy to enhance the composite fracture toughness. Nanosilicas with amino and epoxide functional groups show strong interfaces with epoxy, which suppress large aggregations and enhance resin-wettability, hence enhancing the fracture toughness of epoxy composites. Compared with other reports, less nanosilica content was needed to achieve the same fracture toughness values or similar enhancement ratio. Due to their commercial availability, the low-cost of the raw material and simple fabrication method, those nanocomposites have the potential for large-scale applications.
Aggregation-Induced Emission Fluorescent Gels: Current Trends and Future Perspectives
Publisher: Springer Science and Business Media LLC
Date: 05-02-2021
Inorganic–organic hybrid materials to detect urinary biomarkers: recent progress and future prospects
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2QM00213B
Abstract: The present state of organic–inorganic hybrids for the sensing of urine biomarkers is summarized. Strategies for future researchers to optimize design, synthesis, and experimental methods of hybrids to achieve suitable performance in urine biomarker detection are provided.
Durable pyroelectric shell structures for energy scavenging applications
Publisher: Springer Science and Business Media LLC
Date: 12-10-2019
Synthesis of a β-Arylethenesulfonyl Fluoride-Functionalized AIEgen for Activity-Based Urinary Trypsin Detection
Publisher: American Chemical Society (ACS)
Date: 22-08-2022
Brush-like Polymer Prodrug with Aggregation-Induced Emission Features for Precise Intracellular Drug Tracking
Publisher: MDPI AG
Date: 29-05-2022
DOI: 10.3390/BIOS12060373
Abstract: In this study, a brush-like polymer with aggregation-induced emission (AIE) features was synthesized for drug delivery and intracellular drug tracking. The polymer consisting of tetraphenylethene (TPE) chain-end as well as oligo-poly (ethylene glycol) (PEG) and hydrazine functionalities was successfully synthesized through copper (0)-mediated reversible-deactivation radical polymerization (Cu0-mediated RDRP). Anticancer drug doxorubicin (DOX) was conjugated to the polymer and formed a prodrug named TPE-PEGA-Hyd-DOX, which contains 11% DOX. The hydrazone between DOX and polymer backbone is a pH-sensitive linkage that can control the release of DOX in slightly acidic conditions, which can precisely control the DOX release rate. The drug release of 10% after 96 h in normal cell environments compared with about 40% after 24 h in cancer cell environments confirmed the influence of the hydrazone bond. The ratiometric design of fluorescent intensities with peaks at 410 nm (emission due to AIE feature of TPE) and 600 nm (emission due to ACQ feature of DOX) provides an excellent opportunity for this product as a precise intracellular drug tracker. Cancer cells confocal microscopy showed negligible DOX solution uptake, but an intense green emission originated from prodrug uptake. Moreover, a severe red emission in the DOX channel confirmed a promising level of drug release from the prodrug in the cytoplasm. The merged images of cancer cells confirmed the high performance of the TPE-PEGA-Hyd-DOX compound in the viewpoints of cellular uptake and drug release. This polymer prodrug successfully demonstrates low cytotoxicity in healthy cells and high performance in killing cancer cells.
Strain induced variation of PFOS adsorption on pristine and defected phosphorene: A DFT study
Publisher: Elsevier BV
Date: 12-2020
Electrospinning: Current status and future trends
Publisher: Springer International Publishing
Date: 2016
Nanoparticle‐enhanced bamboo‐like tubular nanofibers for active capture of particulate matter
Publisher: Wiley
Date: 08-04-2019
DOI: 10.1002/POLA.29378
Compression properties of multilayer-connected biaxial weft knitted carbon fiber fabric reinforced composites
Publisher: Elsevier BV
Date: 04-2016
Upsized Vortex Fluidic Device Enhancement of Mechanical Properties and the Microstructure of Biomass-Based Biodegradable Films
Publisher: American Chemical Society (ACS)
Date: 21-10-2021
Denture feature modeling and processing by reverse engineering technology — A case study
Publisher: IEEE
Date: 12-2013
Shape Tuning and Size Prediction of Millimeter-Scale Calcium-Alginate Capsules with Aqueous Core
Publisher: MDPI AG
Date: 19-03-2020
Abstract: Controllable feature and size, good mechanical stability and intelligent release behavior is the capsule products relentless pursuit of the goal. In addition, to illustrate the quantitative relationship of structure and performance is also important for encapsulation technology development. In this study, the sphericity and size of millimeter-scale calcium sodium alginate capsules (mm-CaSA-Caps) with aqueous core were well tuned by manipulating the viscosity, surface tension, and density of CaCl2/carboxyl methyl cellulose (CMC) drops and sodium alginate (SA) solution. The well-tuned mm-CaSA-Caps showed significant mechanical and control-releasing property effects. The results showed that the prepared mm-CaSA-Caps were highly monodispersed with average diameter from 3.8 to 4.8 mm. The viscosity of the SA solution and the viscosity and surface tension of the CaCl2/CMC solution had significant effects on the mm-CaSA-Caps sphericity. Uniform and spherical mm-CaSA-Caps could be formed with high viscosity CaCl2/CMC solution (between 168.5 and 917.5 mPa·s), low viscosity SA solution (between 16.2 and 72.0 mPa·s) and decreased surface tension SA solution (by adding 0.01 wt.% poloxamer 407). The diameter of the mm-CaSA-Caps could be predicted by a modified Tate’s law, which correlated well with the experimental data. The Caps with sphericity factor (SF) 0.07 had better mechanical stability, with the crushing force 2.91–15.5 times and the surface Young’s modulus 2.1–3.99 times higher than those of the non-spherical Caps (SF 0.07). Meanwhile, the spherical Caps had a more even permeation rate, which was helpful in producing uniform and sustained releasing applications in foodstuff, medicine, agriculture and chemical industry.
Materials Selection for Antifouling Systems in Marine Structures
Publisher: MDPI AG
Date: 25-05-2022
DOI: 10.3390/MOLECULES27113408
Abstract: Fouling is the accumulation of unwanted substances, such as proteins, organisms, and inorganic molecules, on marine infrastructure such as pylons, boats, or pipes due to exposure to their environment. As fouling accumulates, it can have many adverse effects, including increasing drag, reducing the maximum speed of a ship and increasing fuel consumption, weakening supports on oil rigs and reducing the functionality of many sensors. In this review, the history and recent progress of techniques and strategies that are employed to inhibit fouling are highlighted, including traditional biocide antifouling systems, biomimicry, micro-texture and natural components systems, superhydrophobic, hydrophilic or hiphilic systems, hybrid systems and active cleaning systems. This review highlights important considerations, such as accounting for the effects that antifouling strategies have on the sensing mechanism employed by the sensors. Additionally, due to the specialised requirements of many sensors, often a bespoke and tailored solution is preferential to general coatings or paints. A description of how both fouling and antifouling techniques affect maritime sensors, specifically acoustic sensors, is given.
Monitoring of delamination onset and growth during Mode I and Mode II interlaminar fracture tests using guided waves
Publisher: Elsevier BV
Date: 2012
A smartphone-based point-of-care quantitative urinalysis device for chronic kidney disease patients
Publisher: Elsevier BV
Date: 08-2018
Porous graphene oxide/chitosan nanocomposites based on interfacial chemical interactions
Publisher: Elsevier BV
Date: 10-2019
Revealing Principles for Design of Lean-Electrolyte Lithium Metal Anode via in Situ Spectroscopy
Publisher: American Chemical Society (ACS)
Date: 03-01-2020
DOI: 10.1021/JACS.9B11774
Abstract: Lean-electrolyte conditions are highly pursued for practical lithium (Li) metal batteries. The previous studies on the Li metal anodes, in general, exhibited good stability with a large excess of electrolyte. However, the targeted design of Li hosts under relatively low electrolyte conditions has been rarely studied so far. Herein, we have shown that electrolyte consumption severely affects the cycling stability of Li metal anode. Considering carbon hosts as typical ex les, we innovatively employed in situ synchrotron X-ray diffraction, in situ Raman spectroscopy, and theoretical computations to obtain a better understanding of the Li nucleation/deposition processes. We also showed the usefulness of in situ electrochemical impedance spectra to analyze interfacial fluctuation at the Li/electrolyte interface, together with nuclear magnetic resonance data to quantify electrolyte consumption. We have found that uneven Li nucleation/deposition and the crack of surface-area-derived solid-electrolyte interface (SEI) layer both lead to a great consumption of electrolyte. Then, we suggested a design principle for Li host to overcome the electrolyte loss, that is, uneven growth of the Li structure and the crack of the SEI layer must be simultaneously controlled. As a proof of concept, we demonstrated the usefulness of a 3D low-surface-area defective graphene host (L-DG) to control Li nucleation/deposition and stabilize the SEI layer, contributing to a highly reversible Li plating/stripping. As a result, such a Li host can achieve stable cycles (e.g., 1.0 mAh cm
Influences of processing methods and chemical treatments on fracture toughness of halloysite–epoxy composites
Publisher: Elsevier BV
Date: 12-2012
Understanding Regular Waves Effect on Ship by Numerical Wave Tank Simulation
Publisher: Trans Tech Publications, Ltd.
Date: 12-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.477-478.259
Abstract: This study establishes three-dimensional numerical wave tank based on the theory of viscous flow to simulate the unsteady motion response of a Wigley advancing in regular heading waves. The governing equations, Reynolds Averaged Navier-Stokes and continuity equations are discretized by finite volume method, a Reynolds-averaged NavierStokes solver is employed to predict the motions of ship, and volume of fluid method is adopted to capture the nonlinear free surface by writing user-defined functions. The outgoing waves are dissipated inside an artificial d ing zone located at the rear part (about 1-2 wave lengths) of the wave tank. The numerical simulation results are compared with theoretical and experimental data from Delft University of Technology, and show good agreement with them. This research can be used to further analyze and predict hydrodynamic performance of ship and marine floating structures in waves and help to extend the applications of numerical wave tank.
Transverse permeability determination of dual-scale fibrous materials
Publisher: Elsevier BV
Date: 03-2013
Strain engineering of selective chemical adsorption on monolayer black phosphorous
Publisher: Elsevier BV
Date: 02-2020
Thin‐film flow technology in controlling the organization of materials and their properties
Publisher: Wiley
Date: 03-10-2023
DOI: 10.1002/AGT2.433
Principles and Applications of Aggregation-Induced Emission
Publisher: Springer International Publishing
Date: 2019
Electrospun multi-scale hybrid nanofiber/net with enhanced water swelling ability in rubber composites
Publisher: Elsevier BV
Date: 12-2015
Novel Bacterial Cellulose/Gelatin Hydrogels as 3D Scaffolds for Tumor Cell Culture
Publisher: MDPI AG
Date: 24-05-2018
Meet the Community Board of Materials Chemistry Frontiers
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9QM90029B
Surface roughness effects on a tensioned riser vortex-induced vibration in the uniform current
Publisher: Elsevier BV
Date: 2022
A simple strategy for the efficient design of mitochondria-targeting NIR-II phototheranostics
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2TB02295H
Abstract: The pursuit of phototheranostic agents with near-infrared II emission, high photothermal conversion efficiency and the robust generation of reactive oxygen species (ROS) in the aggregated state is always in high demand but remains a big challenge.
An Automated Mesh Generation Algorithm for Curved Surfaces of Ship Longitudinal Structures
Publisher: CAD Solutions, LLC
Date: 15-08-2014
Porous Hydrogel Photothermal Conversion Membrane to Facilitate Water Purification
Publisher: American Chemical Society (ACS)
Date: 19-05-2023
Development of the ASTRI heliostat
Publisher: Author(s)
Date: 2016
DOI: 10.1063/1.4949029
Aggregation-induced emission fluorescent gels: Current trends and future perspectives
Publisher: Springer International Publishing
Date: 05-02-2022
Understanding meso interfacial structures between z-pins and laminates in z-pinned laminates
Publisher: Elsevier BV
Date: 11-2022
Polydopamine/silver hybrid coatings on soda-lime glass spheres with controllable release ability for inhibiting biofilm formation
Publisher: Springer Science and Business Media LLC
Date: 04-03-2020
Time and energy efficient trajectory generator for autonomous underwater vehicle docking operations
Publisher: IEEE
Date: 09-2016
Lipid modification to improve cryotolerance of gametes, embryos and larvae and its potential application in aquaculture species
Publisher: Frontiers Media SA
Date: 11-09-2023
Numerical simulation of super upper branch of a cylindrical structure with a low mass ratio
Publisher: Elsevier BV
Date: 11-2018
Parallel Computational Fluid Dynamics
Publisher: Springer Berlin Heidelberg
Date: 2014
Understanding the interfacial interactions between dopamine and different graphenes for biomedical materials
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6QM00300A
Abstract: A dopamine molecule on the Stone–Wales defective graphene surface.
In Situ Characterizations Revealing Ruthenium‐Atom‐Induced Raise of Photocatalytic Performance
Publisher: Wiley
Date: 09-08-2023
Abstract: Rational design/fabrication of high‐activity photocatalysts is of central importance to realize solar‐to‐chemical conversion for tackling worldwide energy/environmental issues. Hence, it is desirable to disclose the element/space/time‐resolved charge kinetics and surface species evolution of photocatalysts under realistic conditions using various in situ characterizations. Furthermore, the correlation of the above‐disclosed mechanisms with atomic‐scale compositions/structures of photocatalysts can further direct the atomic‐level design/synthesis of high‐performance photocatalysts. Herein, Ru atoms incorporated CdS quantum dots (QDs) are synthesized using an in situ hot‐injection route. The optimized Ru incorporated CdS QDs (Ru0.1) exhibit excellent photocatalytic evolution rates of H 2 O 2 (8.78 mmol g −1 h −1 ) and benzaldehyde (11.70 mmol g −1 h −1 ), respectively. Four different in situ characterizations demonstrate that in realistic conditions, the incorporated Ru atoms with high oxidation state (+3) effectively attract photo‐generated electrons from bulk to the overall surface of Ru0.1 these directed electron flows also greatly facilitate the transfer of photo‐generated holes from bulk to surface of Ru0.1 via efficiently reducing electron‐hole recombination. in situ diffuse reflectance infrared Fourier transform spectroscopy, electron spin spectroscopy, and species‐trapping experiments further reveal three possible reaction pathways for H 2 O 2 evolution. This work underscores the use of in situ characterizations to reveal the element/space/time‐resolved electrons/holes kinetics and surface‐species generation for photocatalysts in realistic conditions.
Synthetic fluorescent probes to apprehend calcium signalling in lipid droplet accumulation in microalgae—an updated review
Publisher: Springer Science and Business Media LLC
Date: 17-02-2020
Synthesis and self-assembly of tetraphenylethene and biphenyl based AIE-active triazoles
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2JM30620D
Crystal Growth, Optical Properties, and Photocatalytic Performances of ZnO‐CuAl2O4 Hybrid Compounds: Theoretical and Experimental Studies
Publisher: Wiley
Date: 22-10-2022
Abstract: In this study, a two‐step synthesis of the ZnO‐CuAl 2 O 4 nanocomposite with houseleek‐like grains structures is developed for the first time. The proposed preparation procedure is led to an increase in bandgap energy (E g ) of the synthesized nanocomposite in comparison with the synthesized ZnO nanoparticles. Theoretically, based on a relation between E g and the number of surface atoms, the increase in Eg value has been ascribed to the morphology of the synthesized s les. Experimentally, the photocatalytic performance of the synthesized composites, and pristine ZnO and CuAl 2 O 4 are evaluated by comparing the degradation of methyl orange (MO) solution as a model of azo dye pollutants under UV irradiation. ZnO content and solution pH are selected as variables. Experimental results are showed that acidic pH (≈4) leads to the highest photodegradation performance due to the anionic nature of the MO solution. On the other hand, CuAl 2 O 4 ‐25%ZnO attained the highest degradation efficiency and high adsorption behavior of the composite is the main reason for this achievement.
Structural Control of the Photoluminescence of Silole Regioisomers and Their Utility as Sensitive Regiodiscriminating Chemosensors and Efficient Electroluminescent Materials
Publisher: American Chemical Society (ACS)
Date: 22-04-2005
DOI: 10.1021/JP0503462
Abstract: We synthesized a group of silole regioisomers 1(x,y), whose photoluminescence varied dramatically with its regiostructure. By internally hindering the intramolecular rotation, we succeeded in creating a novel silole (1(3,4)) that is strongly luminescent in solutions and whose fluorescence quantum yield in acetone is as high as 83%. We revealed that 1(3,4) was a sensitive chemosensor capable of optically discriminating nitroaromatic regioisomers of p-, o-, and m-nitroanilines. Against general belief, crystal formation of 1(2,4) blue-shifted its emission color and boosted its emission efficiency. The light-emitting diode based on the crystal of 1(2,4) emitted a strong blue light (464 nm) in a high current efficiency (5.86 cd/A).
Water swellable rubber composites: An update review from preparation to properties
Publisher: Wiley
Date: 21-08-2015
DOI: 10.1002/APP.42786
Thermal analysis and electro-elastic response of multilayered spherical vessels
Publisher: Elsevier BV
Date: 03-2019
6 Biomedical polymer hybrid composites
Publisher: Elsevier
Date: 2017
Microalgae-Derived Health Supplements to Therapeutic Shifts
Publisher: Wiley
Date: 09-2021
Abstract: Reactive oxygen species (ROS) are highly reactive molecules, serve the normal signaling in different cell types. Targeting ROS as the chemical signals, different stress based strategies have been developed to synthesis different anti‐inflammatory molecules in microalgae. These molecules could be utilized as health supplements in human. To provoke the ROS‐mediated defence systems, their connotation with the associated conditions must be well understood, therefore, proper tools for studying ROS in natural state are essential. The in vivo detection of ROS with phosphorescent probes offers promising opportunities to study these molecules in a non‐invasive manner. Most of the common problems in the traditional fluorescent probes are lower photostability, excitation intensity, slow responsiveness, and the microenvironment that challenge their performance. Some ROS‐specific aggregationinduced emission luminogens (AIEgens) with pronounced spatial and temporal resolution have recently demonstrated high selectivity, rapid responsiveness, and efficacies to resolve the aggregation‐caused quenching issues. The nanocomposites of some AIE‐photosensitizers can also improve the ROS‐mediated photodynamic therapy. These AIEgens could be used to induce bioactive components in microalgae through altering the ROS signaling, therefore are more auspicious for biomedical research. This study reviews the prospects of AIEgen‐based technologies to understand the ROS mediated bio‐physiological processes in microalgae for better healthcare benefits.
Fracture toughness and wear properties of nanosilica/epoxy composites under marine environment
Publisher: Elsevier BV
Date: 07-2016
A hyper-branched polymer tunes the size and enhances the fluorescent properties of aggregation-induced emission nanoparticles
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0NA00044B
Abstract: The host–guest interaction approach, specifically via the formation of hydrogen bonds, is an effective strategy for preparing luminescent hyper-branched polymers.
Rheological study on high‐density polyethylene/organoclay composites
Publisher: Wiley
Date: 22-09-2010
DOI: 10.1002/PEN.21790
Photoluminescence and thermoluminescence of Ce3+ incorporated Y3Al5O12 synthesized by rapid combustion
Publisher: Elsevier BV
Date: 02-2016
Tuning aggregation-induced emission nanoparticle properties under thin film formation
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9QM00585D
Abstract: The preparation of AIE nanoparticles under thin film formation controls their size and the associated fluorescent intensity, with the smaller nanoparticles significantly increasing brightness.
In vivo Visualization of the Process of Hg2+ Bioaccumulation in Water Flea Daphnia carinata by a Novel Aggregation‐Induced Emission Fluorogen
Publisher: Wiley
Date: 04-12-2019
Abstract: This paper employs a specially designed aggregation-induced emission fluorogen (AIEgen) to in vivo visualize the process of Hg
A comparative study of thermotropic LCP and organoclay as fillers in high molecular mass polyethylene with different blending sequences
Publisher: Wiley
Date: 16-07-2010
DOI: 10.1002/PEN.21663
On the determination of representative stress-strain relation of metallic materials using instrumented indentation
Publisher: Elsevier BV
Date: 2015
Label-free dendrimer-like silica nanohybrids for traceable and controlled gene delivery
Publisher: Elsevier BV
Date: 07-2014
DOI: 10.1016/J.BIOMATERIALS.2014.03.051
Abstract: To create advanced functional nanocarriers for achieving excellent gene delivery performance, fluorescence label-free hybridized dendrimer-like silica nanocarriers (HPSNs-AC-PEI) were developed by using the endosomal pH and cytoplasmic glutathione (GSH) responsive autofluorescent acetaldehyde-modified-cystine (AC) to link non-toxic low molecular weight branched polyethyleneimine (PEI) onto amino-functionalized dendrimer-like silica nanoparticles with hierarchical pores (HPSNs-NH2). The specific microstructure of this hybridized nanocarrier makes it not only show low cytotoxicity and high gene loading capability, but also display high gene transfection efficiency. The cleavage of disulfide bonds caused by GSH facilitates plasmid DNA (pDNA) release. Moreover, the pH and GSH controlled gene delivery profile can be real-time tracked using the autofluorescence of HPSNs-AC-PEI.
Micro-Rheological Study on Fully Exfoliated Organoclay Modified Thermotropic Liquid Crystalline Polymer and Its Viscosity Reduction Effect on High Molecular Mass Polyethylene
Publisher: InTech
Date: 07-11-2012
DOI: 10.5772/45996
Interlaminar fracture toughness and CAI strength of fibre-reinforced composites with nanoparticles – A review
Publisher: Elsevier BV
Date: 09-2013
Structural and Mechanical Properties of Doped Tobermorite
Publisher: MDPI AG
Date: 08-08-2023
DOI: 10.3390/NANO13162279
Abstract: As calcium silicate hydrate (C-S-H) is the main binding phase in concrete, understanding the doping behavior of impurity elements in it is important for optimizing the structure of cementitious materials. However, most of the current studies focus on cement clinker, and the doping mechanism of impurity elements in hydrated calcium silicate is not yet fully understood. The hydrated calcium silicate component is complex, and its structure is very similar to that of the tobermorite mineral family. In this study, the effects of three different dopants (Mg, Sr and Ba) on a representing structure of C-S-H—tobermorite—was systematically explored using densify functional theory (DFT) calculations. The calculations show that Mg doping leads to a decrease in lattice volume and causes obvious structure and coordination changes of magnesium–oxygen polyhedra. This may be the reason why high formation energy is required for the Mg-doped tobermorite. Meanwhile, doping only increases the volume of the Sr- and Ba-centered oxygen polyhedra. Specifically, the Mg-doped structure exhibits higher chemical stability and shorter interatomic bonding. In addition, although Mg doping distorts the structure, the stronger chemical bonding between Mg-O atoms also improves the compressive (~1.99% on average) and shear resistance (~2.74% on average) of tobermorillonite according to the elastic modulus and has less effect on the anisotropy of the Young’s modulus. Our results suggest that Mg doping is a promising strategy for the optimized structural design of C-S-H.
Multiplexed imaging detection of live cell intracellular changes in early apoptosis with aggregation-induced emission fluorogens
Publisher: Springer Science and Business Media LLC
Date: 19-06-2018
Density functional theory study of perfluorooctane sulfonate adsorption on fluorinated graphene
Publisher: Thomas Telford Ltd.
Date: 04-2021
Abstract: Density functional theory calculations are carried out to explore the adsorption behaviour of perfluorooctane sulfonate (PFOS) on pristine and fluorinated graphene. Then, the effects of different degrees of fluorination of graphene on the adsorption of PFOS are systematically investigated by analysis of the adsorption energy (E ads ), electron transfer and partial density of states. Finally, the unique adsorption behaviour of PFOS on graphene and fluorinated graphene is demonstrated by a companion study of four other organic molecules, namely hepta-fluorobutyric acid, phenanthrene, phenol and perfluorooctanoate.
Molybdenum sulfide clusters-nitrogen-doped graphene hybrid hydrogel film as an efficient three-dimensional hydrogen evolution electrocatalyst
Publisher: Elsevier BV
Date: 2015
Increasing load-bearing capacity of wood-plastic composites by sandwiching natural and glass fabrics
Publisher: SAGE Publications
Date: 08-07-2010
Abstract: Aimed to increase the load-bearing capacity of wood-plastic composites (WPC), sisal and glass fiber fabrics were incorporated into wood—high density polyethylene (HDPE) composites by sandwiching them inside the composites during the compression molding of extruded WPC pellets. Experimental results showed that the inclusion of long fibers in less than 20 wt% in the form of fabrics, particularly glass fabrics (13—20 wt%), could effectively enhance the mechanical performance of the wood—HDPE composites with significantly increased strength and modulus as well as the improved creep resistance, compared with their unreinforced counterparts. The reinforced WPC preserved their wood-like appearances, but they have much higher strength and creep resistance. Particularly, the WPC s les reinforced by two layers of glass fabrics could have strengths that were comparable to that of solid wood in the parallel-to-grain direction but much better mechanical performance than that of wood in the perpendicular-to-grain direction. Surface treatments to the fiber fabrics using a silane coupling agent and the incorporation of maleic anhydride-grafted polyethylene into the WPC pellets during the compounding process could improve the interfacial compatibility between the reinforcing fabrics and the HDPE matrix and, thus, resulted in additional increases in the mechanical performance of the composites. On the basis of the experimental results and the simplicity of the processing methods adopted in this study, the approach, which sandwiched natural or inorganic fiber fabrics into WPC, provided a feasible method to effectively improve the load-bearing capability of WPC products, which may allow the reinforced WPC to be potentially used in certain structural applications to replace solid wood.
Short Beam Shear Behavior and Failure Characterization of Hybrid 3D Braided Composites Structure with X-ray Micro-Computed Tomography
Publisher: MDPI AG
Date: 26-08-2020
Abstract: Three-dimensional braided composite has a unique spatial network structure that exhibits the characteristics of high delamination resistance, damage tolerance, and shear strength. Considering the characteristics of braided structures, two types of high-performance materials, namely, aramid and carbon fibers, were used as reinforcements to prepare braided composites with different hybrid structures. In this study, the longitudinal and transverse shear properties of 3D braided hybrid composites were tested to investigate the influences of hybrid and structural effects. The damage characteristics of 3D braided hybrid composites under short beam shear loading underwent comprehensive morphological analysis via optical microscopy, water-logging ultrasonic scanning, and X-ray micro-computed tomography methods. It is shown that the shear toughness of hybrid braided composite has been improved at certain degrees compared with the pure carbon fiber composite under both transverse and longitudinal directions. The hybrid braided composites with aramid fiber as axial yarn and carbon fiber as braiding yarn exhibited the best shear toughness under transverse shear loading. Meanwhile, the composites with carbon fiber as axial yarn and aramid fiber as braiding yarn demonstrated the best shear toughness in the longitudinal direction. Due to the different distribution of axial and braiding yarns, the transverse shear property of hybrid braided structure excels over the longitudinal shear property. The failure modes of the hybrid braided composite under the two loading directions are considerably different. Under transverse loading, the primary failure mode of the composites is yarn fracture. Under longitudinal loading, the primary failure modes are resin fracture and fiber slip. The extensive interfacial effects and the good deformation capability of the hybrid braided composites can effectively prevent the longitudinal development of internal cracks in the pattern, improving the shear properties of braided composites.
Design functionally graded rotating disks under thermoelastic loads: Weight optimization
Publisher: Elsevier BV
Date: 03-2018
Smart humidity sensor of graphene enhanced superabsorbent
Publisher: IEEE
Date: 02-2014
Single-fluorogen polymers with color-tunable aggregation-induced emission
Publisher: Elsevier BV
Date: 08-2021
Detection of Urinary Albumin Using a “Turn‐on” Fluorescent Probe with Aggregation‐Induced Emission Characteristics
Publisher: Wiley
Date: 04-2021
Numerical Investigation of Transverse Tensile Behaviors of Marine Composites under Different Strain Rates
Publisher: Trans Tech Publications, Ltd.
Date: 09-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.774-776.944
Abstract: In this study, the local stress of unidirectional fiber reinforced marine composites under transverse direction tension is conducted by using a representative volume element (RVE). With the application of fracture mechanics theory, the strength and debonding evolution of the fibre-matrix interface is analyzed and simulated by cohesive elements in FEA. The modeling results fit the experimental results in quasi-static conditions well, which demonstrates a proper simulation method for assessing the transverse mechanical properties of marine composites. Considering the complex work environment in ocean, transverse mechanical behaviors of marine composites under different strain rates is investigated, which would provide guidance for the marine composite designers.
Flexible, Free-Standing TiO2–Graphene–Polypyrrole Composite Films as Electrodes for Supercapacitors
Publisher: American Chemical Society (ACS)
Date: 16-02-2015
DOI: 10.1021/JP511022Z
Characterization of transverse tensile, interlaminar shear and interlaminate fracture in CF/EP laminates with 10wt% and 20wt% silica nanoparticles in matrix resins
Publisher: Elsevier BV
Date: 12-2011
A supramolecular self-assembled nanomaterial for synergistic therapy of immunosuppressive tumor
Publisher: Elsevier BV
Date: 11-2022
DOI: 10.1016/J.JCONREL.2022.09.018
Abstract: Triple negative breast cancer (TNBC) is an immunosuppressive "cold" tumor that lacks immune cell infiltration and activation, resulting in a poor response to immune checkpoint blockade (ICB) therapies. In addition, TNBC is poorly responsive to targeted therapies due to the absence of efficient molecular targets. A strategy that can block molecular signal transduction, stimulate immunogenicity, and activate the immune response is a promising approach to achieve ideal clinical benefit. Herein, we designed and synthesized an aggregation-induced emission luminogen (AIEgen)-conjugated self-assembling peptide that targets epidermal growth factor receptor (EGFR), named TPA-FFG-LA. TPA-FFG-LA peptides form nanoassemblies on the surface of EGFR-positive TNBC cells and are internalized into cells through endocytosis, which inhibit EGFR signaling transduction and provoke lysosomal membrane permeabilization (LMP). Upon light irradiation, the aggregated AIEgens produce massive reactive oxygen species (ROS) to exacerbate LMP and trigger immunogenic cell death (ICD), resulting in elimination of residual EGFR-negative tumor cells and exerting long-term antitumor effects. The in vitro and in vivo experiments verified that TPA-FFG-LA nanoassemblies suppress tumor growth, provoke immune cell activation and infiltration, and cause EGFR degradation and LMP. These results suggest that the combination of supramolecular assembly induced molecular targeting effects and lysosome dysfunction with ICD-stimulated immune activation is a plausible strategy for the efficient therapy of immunosuppressive TNBC.
Effect of reinforcement structures on vibration performance of composites
Publisher: SAGE Publications
Date: 25-01-2017
Abstract: In this study, the composites with different reinforcement structures, namely three-dimension and five-direction braided, three-dimension and four-direction braided, and laminated structures, are designed and the effects of different reinforcement structures on the vibration properties of the corresponding composites were analyzed. The dynamic properties of the braided composites and laminated composites were compared. Multivariate analysis of variance demonstrated that the structure of the reinforcement had a significant effect on the natural frequency and d ing ratio of the composites. The composites with advanced braided structure had the good dynamic mechanics behavior, such as relatively high natural frequency, d ing ratio, and the ratio of stiffness to weight, as well as fairly good stabilization. This study provides the basis for composite design and the selection of reinforcement structures under different conditions.
AIEgens in cell-based multiplex fluorescence imaging
Publisher: Springer Science and Business Media LLC
Date: 11-07-2019
A Novel Structural Form of Semi-Submersible Platform for a Floating Offshore Wind Turbine with Hydrodynamic Performance Analysis
Publisher: Trans Tech Publications, Ltd.
Date: 12-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.477-478.109
Abstract: With the mature of floating offshore wind turbine technology, floating wind farm building in the deep sea becomes an inevitable trend. In the design of floating offshore wind turbine, the change of structural form is the main factor influencing hydrodynamic performance. This research, taking a typical sea condition in China's coastal areas as the object of study, designs a novel semi-submersible foundation for NREL 5 MW offshore wind turbine in 200 m deep water. In the design, deep-draft buoys structures are used to reduce the force of waves on the floating offshore, while d ing structures are used to optimize the stability of wind turbine and reduce the heave litude. By means of numerical simulation method, the hydrodynamic performance of semi-submersible support is studied. Meanwhile, the response litude operators (RAOs) and the wave response motions of platform are calculated. The results in time domain indicate that the floating wind turbine system can keep safe and survive in the harsh sea condition, coupling wind, waves and currents. It is showed that the designed semi-submersible support of platform has excellent hydrodynamic performance. This change of structural form may serve as a reference on the development of offshore wind floating platform.
Analysis of architecture and performance of three-dimensional braided composites
Publisher: Elsevier
Date: 2021
Performance of concrete containing pristine graphene-treated recycled concrete aggregates
Publisher: Elsevier BV
Date: 12-2023
Recognition of Damage Modes and Hilbert–Huang Transform Analyses of 3D Braided Composites
Publisher: MDPI AG
Date: 14-11-2018
DOI: 10.3390/JCS2040065
Abstract: The identification and classification of acoustic emission (AE) based failure modes are complex due to the fact that AE waves are generally released simultaneously from all AE-emitting damage sources. To fully understand the occurrence of damage and the damage evolution law of 3D braided composites, the tensile response characteristics and failure mechanisms of such composites were revealed by experiments, followed by frequency domain analyses. The results indicated good correlation between the number of AE events and the evolution of damage in 3D braided composites. After an AE signal was decomposed by the Hilbert–Huang transform (HHT) method, it might extract and separate all damage modes included in this AE signal. Additionally, the frequency saltation in the HHT spectra implied changes in the failure mode of the 3D braided composites. This study provides an effective new method for the analysis of the tensile fracture mechanism in 3D braided composites.
Polycaprolactone/chitosan blends: Simulation and experimental design
Publisher: Elsevier BV
Date: 2016
Organoclay/thermotropic liquid crystalline polymer nanocomposites. Part VI: Effects of intercalated organoclay on nanocomposite morphology, thermal and rheological properties
Publisher: Informa UK Limited
Date: 10-09-2010
Continuous flow biodiesel production from wet microalgae using a hybrid thin film microfluidic platform
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CC07610C
Abstract: A novel continuous flow turbo-thin film device (T 2 FD) is effective in producing biodiesel in high yield from wet microalgae at room temperature.
Effects of unfolded and intercalated halloysites on mechanical properties of halloysite–epoxy nanocomposites
Publisher: Elsevier BV
Date: 04-2011
Understanding the lipid production mechanism in Euglena gracilis with a fast-response AIEgen bioprobe, DPAS
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0QM00621A
Abstract: The aggregation-induced emission (AIE) bioprobe, DPAS can rapidly and easily detect lipid drops in Euglena gracilis as highly valued metabolites under nitrogen and calcium deprivation and glucose supplementation in darkness.
Natural-based Hydrogels: A Journey from Simple to Smart Networks for Medical Examination
Publisher: Bentham Science Publishers Ltd.
Date: 04-06-2020
DOI: 10.2174/0929867326666190816125144
Abstract: Natural hydrogels, due to their unique biological properties, have been used extensively for various medical and clinical examinations that are performed to investigate the signs of disease. Recently, complex-crosslinking strategies improved the mechanical properties and advanced approaches have resulted in the introduction of naturally derived hydrogels that exhibit high biocompatibility, with shape memory and self-healing characteristics. Moreover, the creation of self-assembled natural hydrogels under physiological conditions has provided the opportunity to engineer fine-tuning properties. To highlight recent studies of natural-based hydrogels and their applications for medical investigation, a critical review was undertaken using published papers from the Science Direct database. This review presents different natural-based hydrogels (natural, natural-synthetic hybrid and complex-crosslinked hydrogels), their historical evolution, and recent studies of medical examination applications. The application of natural-based hydrogels in the design and fabrication of biosensors, catheters and medical electrodes, detection of cancer, targeted delivery of imaging compounds (bioimaging) and fabrication of fluorescent bioprobes is summarised here. Without doubt, in future, more useful and practical concepts will be derived to identify natural-based hydrogels for a wide range of clinical examination applications.
Revisiting an ancient inorganic aggregation‐induced emission system: An enlightenment to clusteroluminescence
Publisher: Wiley
Date: 16-02-2021
DOI: 10.1002/AGT2.36
Carbon fibre-reinforced polymer laminates with nanofiller-enhanced multifunctionality
Publisher: No publisher found
Date: 2017
Re-Referencing and Calibration for Robust Ratiometric Light Intensity Measurement
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2022
Explicit Time-Domain Approach for Random Vibration Analysis of Jacket Platforms Subjected to Wave Loads
Publisher: MDPI AG
Date: 08-12-2020
DOI: 10.3390/JMSE8121001
Abstract: This paper is devoted to the random vibration analysis of jacket platforms under wave loads using the explicit time-domain approach. The Morison equation is first used to obtain the nonlinear random wave loads, which are discretized into random loading vectors at a series of time instants. The Newmark-β integration scheme is then employed to construct the explicit expressions for dynamic responses of jacket platforms in terms of the random vectors at different time instants. On this basis, Monte Carlo simulation can further be conducted at high efficiency, which not only provides the statistical moments of the random responses, but also gives the mean peak values of responses. Compared with the traditional power spectrum method, nonlinear wave loads can be readily taken into consideration in the present approach rather than using the equivalent linearized Morison equation. Compared with the traditional Monte Carlo simulation, the response statistics can be obtained through the direct use of the explicit expressions of dynamic responses rather than repeatedly solving the equation of motion. An engineering ex le is analyzed to illustrate the accuracy and efficiency of the present approach.
A Two-in-One Janus NIR-II AIEgen with Balanced Absorption and Emission for Image-Guided Precision Surgery
Publisher: American Chemical Society (ACS)
Date: 05-10-2020
DOI: 10.26434/CHEMRXIV.13046684.V1
Abstract: Fluorescence imaging in the near-infrared II (NIR-II, 1000-1700 nm) region opens up new avenues for biological systems due to suppressed scattering and low autofluorescence at longer-wavelength photons. Nonetheless, the development of organic NIR-II fluorophores is still limited mainly due to the shortage of efficient molecular design strategy. Herein, we propose an approach of designing Janus NIR-II fluorophores by introducing electronic donors with distinct properties into one molecule. As a proof-of-concept, fluorescent dye 2TT- m,o C6B with both twisted and planar electronic donors displayed balanced absorption and emission which were absent in its parent compound. The key design strategy for Janus molecule is that it combines the merits of intense absorption from planar architecture and high fluorescence quantum yield from twisted motif. The resulting 2TT- m,o C6B nanoparticles exhibit a high molar absorptivity of 1.12 ⨯10 4 M -1 cm -1 at 808 nm and a NIR-II quantum yield of 3.7%, displaying a typical aggregation-induced emission (AIE) attribute. The highly bright and stable 2TT- m,o C6B nanoparticles assured NIR-II image-guided cancer surgery to resect submillimeter tumor nodules. The present study may inspire further development of molecular design philosophy for highly bright NIR-II fluorophores for biomedical applications.
Tough, self-healable and tissue-adhesive hydrogel with tunable multifunctionality
Publisher: Springer Science and Business Media LLC
Date: 04-2017
DOI: 10.1038/AM.2017.33
Automatic recognition of hull transverse sections and rapid finite element modelling for cargo hold longitudinal structures
Publisher: SAGE Publications
Date: 14-11-2013
Abstract: For rapid modelling of ship structure and sharing of product data for a computer-integrated manufacturing system in shipbuilding, this research proposes a data exchange method between two-dimensional drawings and three-dimensional finite element models. The report of the research is followed by appropriately planning the structure of the extracted data based on the Standard for the Exchange of Product Model Data. A set of rules for two-dimensional feature recognition is established, and then the method for the extraction of graphic and non-graphic design information from two-dimensional drawings of transverse sections is presented. An algorithm for rapid modelling of the longitudinal hull structure is proposed, based on data extracted from the transverse sections. This algorithm bypasses the geometric modelling stage required in traditional manual modelling, exclusively making use of the extracted information. The proposal also enriches data exchange, greatly reduces human error in modelling and consequently improves the accuracy of the finite element modelling for the shipbuilding industry.
Nano-halloysite concentration effects on fracture toughness of diverse epoxy nanocomposites
Publisher: ASTM International
Date: 17-01-2014
DOI: 10.1520/MPC20130032
Conductive Rubber Nanocomposites as Tensile and Pressure Sensors
Publisher: Trans Tech Publications, Ltd.
Date: 12-11-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.217-219.130
Abstract: A conductive silicone rubber (SR) composite, filled with both carbon nanotubes (CNT) and carbon black (CB) is prepared by a simple ball milling method. Because of the good dispersion and synergistic effects of CNT and CB, the SR composite shows improvement in mechanical properties. As well, due to the assembly of conductive pathways generated by the CNT and CB, the nanocomposite becomes highly conductive at a comparatively low concentration, with very high sensitivity for tensile and compressive stress. These outstanding properties show that the SR composite has potential applications in tensile and pressure sensors.
Raman imaging for the identification of Teflon microplastics and nanoplastics released from non-stick cookware
Publisher: Elsevier BV
Date: 12-2022
DOI: 10.1016/J.SCITOTENV.2022.158293
Abstract: The characterisation of microplastics is still difficult, and the challenge is even greater for nanoplastics. A possible source of these particles is the scratched surface of a non-stick cooking pot that is mainly coated with Teflon. Herein we employ Raman imaging to scan the surfaces of different non-stick pots and collect spectra as spectrum matrices, akin to a hyperspectral imaging process. We adjust and optimise different algorithms and create a new hybrid algorithm to extract the extremely weak signal of Teflon microplastics and particularly nanoplastics. We use multiple characteristic peaks of Teflon to create several images, and merge them to one, using a logic-based algorithm (i), in order to cross-check them and to increase the signal-noise ratio. To differentiate the varied peak heights towards image merging, an algebra-based algorithm (ii) is developed to process different images with weighting factors. To map the images via the whole set of the spectrum (not just from the in idual characteristic peaks), a principal component analysis (PCA)-based algorithm (iii) is employed to orthogonally decode the spectrum matrix to the PCA spectrum and PCA intensity image. To effectively extract the Teflon spectrum information, a new hybrid algorithm is developed to justify the PCA spectra and merge the PCA intensity images with the algebra-based algorithm (PCA/algebra-based algorithm) (iv). Based on these developments and with the help of SEM, we estimate that thousands to millions of Teflon microplastics and nanoplastics might be released during a mimic cooking process. Overall, it is recommended that Raman imaging, along with the signal recognition algorithms, be combined with SEM to characterise and quantify microplastics and nanoplastics.
Biomimetic Mineralized Hierarchical Graphene Oxide/Chitosan Scaffolds with Adsorbability for Immobilization of Nanoparticles for Biomedical Applications
Publisher: American Chemical Society (ACS)
Date: 12-01-2016
Abstract: Biomimetic calcium phosphate mineralized graphene oxide/chitosan (GO/CS) scaffolds with hierarchical structures were developed. First, GO/CS scaffolds with large micropores (∼300 μm) showed high mechanical strength due to the electrostatic interaction between the oxygen-containing functional groups of GO and the amine groups of CS. Second, octacalcuim phosphate (OCP) with porous structures (∼1 μm) was biomimetically mineralized on the surfaces of the GO/CS scaffolds (OCP-GO/CS). The hierarchical microporous structures of OCP-GO/CS scaffolds provide a suitable environment for cell adhesion and growth. The scaffolds have exceptional adsorbability of nanoparticles. Bone morphogenetic protein-2 (BMP-2)-encapsulated bovine serum albumin (BSA) nanoparticles and Ag nanoparticles (Ag-NPs) were adsorbed in the scaffolds for enhancement of osteoinductivity and antibacterial properties, respectively. Antibacterial tests showed that the scaffolds exhibited high antibacterial properties against both Escherichia coli and Staphylococcus epidermidis. In vitro and in vivo experiments revealed that the scaffolds have good biocompatibility, enhanced bone marrow stromal cells proliferation and differentiation, and induced bone tissue regeneration. Thus, the biomimetic OCP-GO/CS scaffolds with immobilized growth factors and antibacterial agents might be excellent candidates for bone tissue engineering.
Tuning Surface Morphology of Fluorescent Hydrogels Using a Vortex Fluidic Device
Publisher: MDPI AG
Date: 29-07-2020
DOI: 10.3390/MOLECULES25153445
Abstract: In recent decades, microfluidic techniques have been extensively used to advance hydrogel design and control the architectural features on the micro- and nanoscale. The major challenges with the microfluidic approach are clogging and limited architectural features: notably, the creation of the sphere, core-shell, and fibers. Implementation of batch production is almost impossible with the relatively lengthy time of production, which is another disadvantage. This minireview aims to introduce a new microfluidic platform, a vortex fluidic device (VFD), for one-step fabrication of hydrogels with different architectural features and properties. The application of a VFD in the fabrication of physically crosslinked hydrogels with different surface morphologies, the creation of fluorescent hydrogels with excellent photostability and fluorescence properties, and tuning of the structure–property relationship in hydrogels are discussed. We conceive, on the basis of this minireview, that future studies will provide new opportunities to develop hydrogel nanocomposites with superior properties for different biomedical and engineering applications.
Polydopamine as sizing on carbon fiber surfaces for enhancement of epoxy laminated composites
Publisher: Elsevier BV
Date: 04-2018
Shell space decomposition based path planning for AUVs operating in a variable environment
Publisher: Elsevier BV
Date: 11-2014
Visualising the Emerging Platform of Using Microalgae as a Sustainable Bio-Factory for Healthy Lipid Production through Biocompatible AIE Probes
Publisher: MDPI AG
Date: 31-03-2022
DOI: 10.3390/BIOS12040208
Abstract: Nowadays, a particular focus is using microalgae to get high-valued health beneficiary lipids. The precise localisation of the lipid droplets (LDs) and biochemical changes are crucial to portray the lipid production strategy in algae, but it requires an in vivo tool to rapidly visualise LD distribution. As a novel strategy, this study focuses on detecting lipid bioaccumulation in a green microalga, Chlamydomonas reinhardtii using the aggregation-induced emission (AIE) based probe, 2-DPAN (C24H18N2O). As the messenger molecule and stress biomarker, hydrogen peroxide (H2O2) activity was detected in lipid synthesis with the AIE probe, TPE-BO (C38H42B2O4). Distinctive LDs labelled with 2-DPAN have elucidated the lipid inducing conditions, where more health beneficiary α-linolenic acid has been produced. TPE-BO labelled H2O2 have clarified the involvement of H2O2 during lipid biogenesis. The co-staining procedure with traditional green BODIPY dye and red chlorophyll indicates that 2-DPAN is suitable for multicolour LD imaging. Compared with BODIPY, 2-DPAN was an efficient s le preparation technique without the washing procedure. Thus, 2-DPAN could improve traditional fluorescent probes currently used for lipid imaging. In addition, the rapid, wash-free, multicolour AIE-based in vivo probe in the study of LDs with 2-DPAN could advance the research of lipid production in microalgae.
Regulating the effect of element doping on the CO2 capture performance of kaolinite: A density functional theory study
Publisher: Elsevier BV
Date: 05-2020
Hybrid enhancements by polydopamine and nanosilica on carbon fibre reinforced polymer laminates under marine environment
Publisher: Elsevier BV
Date: 09-2018
AIEgen quantitatively monitoring the release of Ca2+ during swelling and degradation process in alginate hydrogels
Publisher: Elsevier BV
Date: 11-2019
DOI: 10.1016/J.MSEC.2019.109951
Abstract: Alginate-based hydrogels are extensively used for different biomedical applications. While the swelling and degradation of alginate-based hydrogels affect their structure-property relationship, many studies employed gravimetric analysis to characterize the swelling-degradation process. Accurate or not, this traditional method is difficult to be consistently performed with minimized errors, especially at the late stage of the process. For the first time, this study introduced a reliable, accurate and cost-effective method to minimize the human-sourced errors during repetitive measurement of swelling and degradation of alginate-based hydrogels based on Ca
Applying Raman imaging to capture and identify microplastics and nanoplastics in the garden
Publisher: Elsevier BV
Date: 03-2022
DOI: 10.1016/J.JHAZMAT.2021.127788
Abstract: The characterisation of microplastics is still a challenge, and the challenge is even greater for nanoplastics, of which we only have a limited knowledge so far. Herewith we employ Raman imaging to directly visualise microplastics and nanoplastics which are released from the trimmer lines during lawn mowing. The signal-noise ratio of Raman imaging is significantly increased by generating an image from hundreds or thousands of Raman spectra, rather than from a single spectrum, and is further increased by combining with the logic-based and PCA-based algorithms. The increased signal-noise ratio enables us to capture and identify microplastics and particularly nanoplastics, including plastic fragments or shreds (with diameters / widths of 80 nm - 3 µm) and nanoparticles (with diameters of < 1000 nm) that are released during the mimicked mowing process. Using Raman imaging, we estimate that thousands of microplastics (0.1-5 mm), and billions of nanoplastics (< 1000 nm), are released per minute when a line trimmer is used to mow lawn. Overall, Raman imaging provides effective characterisation of the microplastics and is particularly suitable for nanoplastics.
Bacterial cellulose production, properties and applications with different culture methods – A review
Publisher: Elsevier BV
Date: 09-2019
DOI: 10.1016/J.CARBPOL.2019.05.008
Abstract: Bacterial cellulose (BC) is an organic compound produced by certain types of bacteria. In natural habitats, the majority of bacteria synthesize extracellular polysaccharides, such as cellulose, which form protective envelopes around the cells. Many methods are currently being investigated to enhance cellulose growth. The various celluloses produced by different bacteria possess different morphologies, structures, properties, and applications. However, the literature lacks a comprehensive review of the different methods of BC production, which are critical to BC properties and their final applications. The aims of this review are to provide an overview of the production of BC from different culture methods, to analyze the characteristics of particular BC productions, to indicate existing problems associated with different methods, and to choose suitable culture approaches for BC applications in different fields. The main goals for future studies have also been discussed here.
ReS2 Nanosheets with In Situ Formed Sulfur Vacancies for Efficient and Highly Selective Photocatalytic CO2 Reduction
Publisher: Wiley
Date: 15-01-2021
Raman imaging of microplastics and nanoplastics generated by cutting PVC pipe
Publisher: Elsevier BV
Date: 04-2022
DOI: 10.1016/J.ENVPOL.2022.118857
Abstract: The characterisation of nanoplastics is much more difficult than that of microplastics. Herewith we employ Raman imaging to capture and visualise nanoplastics and microplastics, due to the increased signal-noise ratio from Raman spectrum matrix when compared with that from a single spectrum. The images mapping multiple characteristic peaks can be merged into one using logic-based algorithm, in order to cross-check these images and to further increase the signal-noise ratio. We demonstrate how to capture and identify microplastics, and then zoom down gradually to visualise nanoplastics, in order to avoid the shielding effect of the microplastics to shadow and obscure the nanoplastics. We also carefully compare the advantages and disadvantages of Raman imaging, while giving recommendations for improvement. We validate our approach to capture the microplastics and nanoplastics as particles released when we cut and assemble PVC pipes in our garden. We estimate that, during a cutting process of the PVC pipe, thousands of microplastics in the range of 0.1-5 mm can be released, along with millions of small microplastics in the range of 1-100 μm, and billions of nanoplastics in the range of <1 μm. Overall, Raman imaging can effectively capture microplastics and nanoplastics.
Effects of Various Antifouling Coatings and Fouling on Marine Sonar Performance
Publisher: MDPI AG
Date: 11-04-2019
Abstract: There is a rising imperative to increase the operational availability of maritime vessels by extending the time between full docking cycles. To achieve operational efficacy, maritime vessels must remain clear of biological growth. Such growth can cause significant increases in frictional drag, thereby reducing speed, range and fuel efficiency and decreasing the sensitivity of acoustic sensors. The impact that various stages of fouling have on acoustic equipment is unclear. It is also unclear to what extent antifouling techniques interfere with the transmission of acoustic signals. In this study, to examine this effect, neoprene s les were coated with three antifouling coatings, namely, Intersmooth 7460HS, HempaGuard X7 and Hempasil X3. Other neoprene s les were left uncoated but were imbedded with the biocide, 4,5-dichloro-2-octyl-4-isothiazolin-3-one (DCOIT) during the mixing and curing process. Uncoated nitrile s les that had varying levels of fouling from immersion in Port Phillip Bay, Australia, for 92, 156 and 239 days were also extracted. The acoustic properties of these s les were measured using an acoustic insertion loss test and compared to uncoated neoprene or nitrile to ascertain the acoustic effects of the applications of antifouling coatings as well as the fouling growth itself. A T-peel test was performed on all coated s les in an attempt to understand the adhesive properties of the coatings when applied to neoprene. It was found that the application of antifouling coatings had little effect on the transmission characteristics of the neoprene with approximately 1 dB loss. The embedment of DCOIT, however, has a chance of causing aeration in the neoprene, which can heavily h er transmission. An assessment of the effect of the fouling growth found that light and medium fouling levels produced little transmission loss, whereas more extreme fouling lead to a 9 dB transmission loss. The adhesion properties of the coatings were investigated but not fully ascertained as tensile yielding occurred before peeling. However, various failure modes are presented and discussed in this study.
Hybrid polyurethane and silane sized carbon fibre/epoxy composites with enhanced impact resistance
Publisher: Elsevier BV
Date: 03-2019
AIEgen‐enhanced protein imaging: Probe design and sensing mechanisms
Publisher: Wiley
Date: 08-03-2021
DOI: 10.1002/AGT2.41
Abstract: Proteins are the building blocks of life, regarded as one of the most complex and crucial biomacromolecules in biological systems, and playing a significant role in executing genes and transferring genetic information. According to recent research, due to the structural intricacy of proteins and their sensitivity to physical and chemical degradation processes, they could be utilized as biomarkers or therapeutic agents in the diagnosis, treatment, or even prevention of different diseases. Therefore, modern pathways have been developed for understanding the function of proteins, resulting in intriguing approaches in the field of protein‐related diseases. The diagnostic strategies to deal with such diseases, including protein analysis, protein quantification, and protein imaging, were argued in depth. Meanwhile, the aggregation‐induced emission (AIE) concept and its potential applications for real‐time imaging make AIE luminogens (AIEgen) attractive for protein imaging. In general, AIEgens refer to those luminogenic chemicals that are nonluminescent in solution, but luminescent in either the aggregated or solid states. This review is focused on the emergence of AIE materials in protein tracking, detecting, and imaging for medical applications.
Erratum to Monitoring of delamination onset and growth during Mode I and Mode II interlaminar fracture tests using guided waves [Compos Sci Technol 2011;72(2):145-51]
Publisher: Elsevier BV
Date: 02-2012
Aggregation-induced emission fluorogens as biomarkers to assess the viability of microalgae in aquatic ecosystems
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CC07012K
Abstract: An aggregation-induced emission fluorogen is reported as a novel tool to differentiate dead and live microalgae and quantify the link between live algal concentration and fluorogen intensity for monitoring water pollution in the environment.
Aggregation-induced Emission Fluorogen as Mammalian Cell Cytoplasmic Tracker with Long Retention Time and High Photo-stability
Publisher: Springer Science and Business Media LLC
Date: 16-09-2020
Image-guided morphological measurement for the circumferential residual strains in aortic arch of rabbit
Publisher: AIP Publishing
Date: 2020
DOI: 10.1063/5.0021304
Electrically and thermally conductive elastomer/graphene nanocomposites by solution mixing
Publisher: Elsevier BV
Date: 2014
Optical-Based Biosensors and Their Portable Healthcare Devices for Detecting and Monitoring Biomarkers in Body Fluids
Publisher: MDPI AG
Date: 16-07-2021
DOI: 10.3390/DIAGNOSTICS11071285
Abstract: The detection and monitoring of biomarkers in body fluids has been used to improve human healthcare activities for decades. In recent years, researchers have focused their attention on applying the point-of-care (POC) strategies into biomarker detection. The evolution of mobile technologies has allowed researchers to develop numerous portable medical devices that aim to deliver comparable results to clinical measurements. Among these, optical-based detection methods have been considered as one of the common and efficient ways to detect and monitor the presence of biomarkers in bodily fluids, and emerging aggregation-induced emission luminogens (AIEgens) with their distinct features are merging with portable medical devices. In this review, the detection methodologies that use optical measurements in the POC systems for the detection and monitoring of biomarkers in bodily fluids are compared, including colorimetry, fluorescence and chemiluminescence measurements. The current portable technologies, with or without the use of smartphones in device development, that are combined with optical biosensors for the detection and monitoring of biomarkers in body fluids, are also investigated. The review also discusses novel AIEgens used in the portable systems for the detection and monitoring of biomarkers in body fluid. Finally, the potential of future developments and the use of optical detection-based portable devices in healthcare activities are explored.
Hydrodynamic Analysis of Floating Marine Structures Based on an IBM-VOF Two-Phase Flow Model
Publisher: Springer Berlin Heidelberg
Date: 2014
Breathable, Moisturizing, Anti-Oxidation SSD-PG-PVA/KGM Fibrous Membranes for Accelerating Diabetic Wound Tissue Regeneration
Publisher: American Chemical Society (ACS)
Date: 20-05-2022
Abstract: Diabetic wound tissue repair and regeneration is a multi-step process that includes cell proliferation and migration, gas and moisture management, and inflammatory responses. However, current wound dressing designs lack consideration of the wound microenvironment of diabetic patients, making diabetic wound tissue repair a challenge. Here, we report a wound dressing (SSD-PG-PVA/KGM) with a porous structure and anti-oxidant properties for promoting diabetic wound tissue repair. First, the porous structure created by electrospinning technology encourages cell proliferation and migration in the wound while also providing breathability and moisture retention. Second, adding natural polyphenols (PG) and saikosaponins (SSDs) to the wound reduced reactive oxygen species levels and oxide stress. In vitro cell experiments showed that SSD-PG-PVA/KGM had good biocompatibility. Due to the biocompatibility, anti-oxidation ability, breathability, and moisturizing, SSD-PG-PVA/KGM could effectively promote the repair of diabetic wound tissue (the wound closure rate was 95.6% at 14 days).
Detection of biomarkers in body fluids using bioprobes based on aggregation-induced emission fluorogens
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0QM00376J
Abstract: This review describes the constituents and clinical biomarkers in urine, saliva, and sweat, and the role of currently developed AIE bioprobes that can quantitatively detect disease-related biomarkers in these biofluids.
An immersed boundary method with an approximate projection on nonstaggered grids to solve unsteady fluid flow with a submerged moving rigid object
Publisher: SAGE Publications
Date: 06-08-2013
Abstract: An immersed boundary method is presented, which uses an approximate projection method on nonstaggered grids for computing flows with submerged and moving boundaries. The incompressible Navier–Stokes equations are discretized using a second-order accurate finite difference technique on a nonstaggered grid system, and the new immersed boundary method is proposed based on an approximate projection method with two pressure correction techniques, the Armfield method and the geometrical grid Reynolds modified method on nonstaggered grids. By using this method, the results obtained from (1) flow past a rigid cylinder in two dimensions with different Reynold numbers and (2) flow around an oscillatory circular cylinder in flow at low Keulegan–Carpenter numbers are in agreement with the reported experimental and numerical data, demonstrating that this convenient method of constraining the interface is a reliable and robust numerical approach for solving unsteady fluid flow with a submerged moving rigid object. This method has the advantage of using significantly less computation time and lower computation sources than the traditional immersed boundary methods.
Neutralisation and compatibilisation effects on novel water-swellable rubber composites
Publisher: Springer Science and Business Media LLC
Date: 09-05-2015
Parallel Computational Fluid Dynamics -- Natural frequency ratio effect on 2 DOF flow induced vibration of cylindrical structures
Publisher: Springer Berlin Heidelberg
Date: 2014
Detection of oligomers and fibrils of α-synuclein by AIEgen with strong fluorescence
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4CC07911F
Abstract: Fluorescent probe, TPE-TPP, can differentiate monomeric, oligomeric and fibrillar α-synuclein which was previously difficult to achieve.
Surface iodination: A simple and efficient protocol to improve the isotropically thermal conductivity of silver-epoxy pastes
Publisher: Elsevier BV
Date: 07-2014
Design and evaluate the wave driven- triboelectric nanogenerator under external wave parameters: Experiment and simulation
Publisher: Elsevier BV
Date: 03-2022
A novel red-emitting aggregation-induced emission probe for determination of β-glucosidase activity
Publisher: Elsevier BV
Date: 04-2023
Effects of thermotropic LCP on rheologica behavior of high molecular mass polyethylene/organoclay composites
Publisher: Springer Science and Business Media LLC
Date: 02-2007
Quantitative urinalysis using aggregation-induced emission bioprobes for monitoring chronic kidney disease
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6FD00153J
Abstract: Early detection and appropriate management of chronic kidney disease can reduce the progression of kidney failure and cardiovascular disease. The urine albumin to creatinine ratio (UACR) test is a standard urine test for identifying in iduals at high risk of developing progressive kidney disease. In this study, IDATPE, a novel fluorescent probe with aggregation-induced emission (AIE) features, is successfully developed for creatinine detection and quantitation. An excellent correlation between fluorescent light intensity and creatinine concentration is achieved. In addition, BSPOTPE, a reported excellent AIE bioprobe for human serum albumin (HSA) quantitation, is used together with IDATPE in artificial urine for UACR testing. The mutual interference of HSA and creatinine when the bioprobes are used for quantitation is characterised, with promising results. Further improvements and potential applications in CKD quantitation are highlighted.
Illustrating hybrid effect and damage evolution of carbon/aramid braided composite under low-velocity impact
Publisher: Elsevier BV
Date: 08-2020
IDVD-based trajectory generator for autonomous underwater docking operations
Publisher: Elsevier BV
Date: 06-2017
Polymer Microbead-Templated Nanostructures
Publisher: Springer International Publishing
Date: 2017
Online remote monitoring of explosives by optical fibres
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA24080A
Abstract: An AIE-active polytriazole coated fibre tip sensor was developed to detect picric acid with its detection limit down to 100 ppb. The fibre sensor shows high reusability and is promising for remote sensing of explosive.
Understanding multiple parameters affecting static and dynamic performances of composite helical springs
Publisher: Elsevier BV
Date: 09-2022
Porous network carbon nanotubes/chitosan 3D printed composites based on ball milling for electromagnetic shielding
Publisher: Elsevier BV
Date: 06-2021
Experimental and theoretical design for decreasing wear in conical picks in rotation-drilling cutting process
Publisher: Springer Science and Business Media LLC
Date: 14-11-2014
Graphene-based materials and their potential applications
Publisher: Elsevier
Date: 2017
Design and Development of Highly Efficient Light‐Emitting Layers in OLEDs with Dimesitylboranes: An Updated Review
Publisher: Wiley
Date: 23-10-2019
Abstract: With excellent luminescent properties and transport properties, triarylborane compounds containing two mesitylenes (Mes) have gained much attention for their application in OLEDs as light-emitting layers. This study serves as an updated review summarizing recent developments in the design of fluorescent chromophores and phosphorescent host materials for OLEDs comprising small molecular compounds of dimesitylborane (BMes
PAA/TiO2@C composite hydrogels with hierarchical pore structures as high efficiency adsorbents for heavy metal ions and organic dyes removal
Publisher: Elsevier BV
Date: 07-2023
Damage detection of fiber reinforced composite based on mechanoresponsive aggregation induced emission luminogen
Publisher: Elsevier BV
Date: 08-2022
Preparation of Silver Nanowires via a Rapid, Scalable and Green Pathway
Publisher: Elsevier BV
Date: 2015
Hydrogel-Film-Fabricated Fluorescent Biosensors with Aggregation-Induced Emission for Albumin Detection through the Real-Time Modulation of a Vortex Fluidic Device
Publisher: MDPI AG
Date: 05-04-2023
DOI: 10.3390/MOLECULES28073244
Abstract: Hydrogels have various promising prospects as a successful platform for detecting biomarkers, and human serum albumin (HSA) is an important biomarker in the diagnosis of kidney diseases. However, the difficult-to-control passive diffusion kinetics of hydrogels is a major factor affecting detection performance. This study focuses on using hydrogels embedded with aggregation-induced emission (AIE) fluorescent probe TC426 to detect HSA in real time. The vortex fluidic device (VFD) technology is used as a rotation strategy to control the reaction kinetics and micromixing during measurement. The results show that the introduction of VFD could significantly accelerate its fluorescence response and effectively improve the diffusion coefficient, while VFD processing could regulate passive diffusion into active diffusion, offering a new method for future sensing research.
Design and optimization of multi-scale porous sandwich composites with excellent sound absorption and cushioning properties
Publisher: SAGE Publications
Date: 18-02-2021
Abstract: Exposure to prolonged or excessive noise has been shown to cause a range of health problems. In this study, flexible sandwich composites (FSCs) with excellent sound absorption and mechanical properties were designed and fabricated by a one-step foaming process. The compound fabric as composite panel and fabric sequence contacted with PU foam has been designed and optimized for excellent cushioning and sound absorption properties. In comparisons of three processing methods for fabricating compound fabrics as reinforced panels of FSCs, punching/hot pressing was found to be the most effective method. Through experiments, the L (low-melting polyethylene terephthalate nonwoven fabric, LPNF) -W (warp-knitted spacer fabric, WKSF) -F (flexible polyurethane foam, FPF) composites had the best performance, reaching the sound absorption coefficient of 0.997 (1000 Hz), 107.77 KPa in compression modulus, 6541 N in maximum impact contact force and 44.68% in impact energy absorption. Morphological study revealed that the transition region formed by FPF and WKSF played a vital role in the L-W-F structure. In that region, small cavities and complex porous paths were observed that effectively improved the sound absorption and cushioning properties by dissipating the stress wave and sound wave level-to-level.
Tendon Response of 10 MW Offshore Wind Turbine TLP Platform in Extreme Environment Condition
Publisher: Trans Tech Publications, Ltd.
Date: 12-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.477-478.119
Abstract: Deep-sea offshore wind resources are extremely abundant. Large offshore wind turbine is the future trend to utilize of deep-sea offshore wind resources. Because of excellent heaving, pitching and rolling performances, tension-leg platform ( TLP ) is one of best floating support structures for large wind turbine. However, under extreme environment condition, the large tendons which are required for large offshore wind turbine TLP platform will meet extreme response, even lead to damage. Extreme response of tendon of a 10 MW offshore wind turbine TLP platform ( an improved MOSES TLP ) in the extreme environment condition is studied here. It is showed that the global motions can meet the basic requirements for 10 MW floating wind turbine, where the maximum angle of TLP is less than 10 0 . Meanwhile, the maximum tendon tension of the TLP in the simulation is less than the breaking force, which meets the requirements of API rules on tendon of TLP.
In Situ Monitored Vortex Fluidic-Mediated Protein Refolding/Unfolding Using an Aggregation-Induced Emission Bioprobe
Publisher: MDPI AG
Date: 14-07-2021
DOI: 10.3390/MOLECULES26144273
Abstract: Protein folding is important for protein homeostasis roteostasis in the human body. We have established the ability to manipulate protein unfolding/refolding for β-lactoglobulin using the induced mechanical energy in the thin film microfluidic vortex fluidic device (VFD) with monitoring as such using an aggregation-induced emission luminogen (AIEgen), TPE-MI. When denaturant (guanidine hydrochloride) is present with β-lactoglobulin, the VFD accelerates the denaturation reaction in a controlled way. Conversely, rapid renaturation of the unfolded protein occurs in the VFD in the absence of the denaturant. The novel TPE-MI reacts with exposed cysteine thiol when the protein unfolds, as established with an increase in fluorescence intensity. TPE-MI provides an easy and accurate way to monitor the protein folding, with comparable results established using conventional circular dichroism. The controlled VFD-mediated protein folding coupled with in situ bioprobe AIEgen monitoring is a viable methodology for studying the denaturing of proteins.
Effects of Wind Load on Hydrodynamic Performance of an Offshore Wind Turbine Semi-Submersible Platform
Publisher: Trans Tech Publications, Ltd.
Date: 12-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.477-478.114
Abstract: With the wind turbine become larger due to technology development, the effects of wind load on the dynamic behaviors of wind turbine system play a more important pole, especially for offshore wind turbine system with floating platform. To research such effects, the dynamic behaviors of a new semi-submersible platform of a 10 MW wind turbine in 300 m deep seawater are studied in this study. Firstly, frequency domain analysis is done to show the performances of the semi-submersible platform and prepare hydrodynamic coefficients for time domain analysis. Then time domain analysis is studied with the consideration of the coupled load effects of the wind turbine floating platform, mooring lines and ocean environment. Main load components on the wind turbine floating platform are disposed, and the effects of wind load are studied as a key point. Though the result shows that wave load still dominates the contribution to motions of rolling, heaving and surging, the contribution of wind load becomes more important than current load in the operation case, which is different of traditional floating platform.
In situ polymerized hyperbranched polymer reinforced poly(acrylic acid) hydrogels
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7QM00028F
Abstract: A novel hyperbranched polymer reinforced poly(acrylic acid) hydrogel with high water swelling abilities was synthesized by one-step in situ polymerization.
Novel Bacterial Cellulose-Poly (Acrylic Acid) Hybrid Hydrogels with Controllable Antimicrobial Ability as Dressings for Chronic Wounds
Publisher: MDPI AG
Date: 29-11-2018
Abstract: This investigation examines the combination of poly (acrylic acid) (PAA) and bacterial cellulose (BC) nanofibers to synthesize hydrogel hybrid composites used for wound dressing application. Amoxicillin (AM) was also grafted onto the composites for drug release. Fourier transform infrared analysis and scanning electron microscopy conducted revealed the structure and porosity of the composite being developed, as well as the successful fabrication of BC-PAA composites. The results of mechanical testing and hygroscopicity revealed that the composite shows higher stability than hydrogels which are currently used worldwide, albeit with a slight reduction in swelling capabilities. However, the composite was revealed to be responsive to a rise in pH values with an increase in composite swelling and drug release. These results together with their morphological characteristics suggest that BC-PAA hydrogel hybrid composite is a promising candidate for wound dressing application.
Conceptual Design and Hydrodynamic Performance of a Floating Offshore Wind Turbine Cell-Spar-Buoy Support Structure
Publisher: Trans Tech Publications, Ltd.
Date: 2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.472.291
Abstract: On the way to further exploit offshore wind energy, conventional fixed-bottom technology has been limited by the water depth. After the worlds first full scale floating wind turbine being installed in the North Sea in 2009, the floating support structure for offshore wind turbines is most likely becoming not only a technically feasible but also an economically viable solution, especially for regions of water depth over 50 meters. However, less attentions have been paid on floating support strucure, which is a very important part. Derived from commercialized offshore oil and gas platform of cell spar, a conceptual design of a cell-spar-buoy support structure for NREL 5 MW offshore wind turbine is proposed. In this system, structural type of cells is absorbed for cost reduction while d ing configurations are used to optimize the stability of wind turbine. For further hydrodynamic performance estimations, numerical simulations have been performed to compute the response litude operators (RAOs) and the wave response motions, which are the key factors of the preliminary design. Meanwhile, the motion performance of the platform with mooring system in operating conditions and mooring line tensions under the 50 years return period storm survival condition in the South China Sea was calculated in time domain. The results showing excellent motion performance of cell-spar-buoy.
Fire releases micro- and nanoplastics: Raman imaging on burned disposable gloves
Publisher: Elsevier BV
Date: 11-2022
DOI: 10.1016/J.ENVPOL.2022.120073
Abstract: Raman imaging can effectively characterise microplastics and nanoplastics, which is validated here to capture the items released from the plastic gloves when subjected to a mimicked fire. During the COVID-19 pandemic, large quantities of personal protective equipment (PPE) units have been used, such as the disposable gloves. If discarded and poorly managed, plastics gloves might break down to release secondary contaminants. The breakdown process can be accelerated by burning in a bushfire or at the incineration plants. During the burning process, the functional groups on the surface can be burned differently due to their different thermal stabilities. The different degrees of burning can be distinguished and visualised via Raman imaging. In the meantime, at the bottom of the burned plastics, microplastics and nanoplastics can be generated at a significant amount. The possible false Raman imaging on microplastics and nanoplastics is also discussed, by effectively extracting and distinguishing the weak signal from the background or noise. Overall, these findings confirm the importance of effectively working waste incineration plants and litter prevention, and suggest that Raman imaging is a suitable approach to characterise microplastics and nanoplastics.
Effect of damage on the vibration modal of a novel three-dimensional and four-directional braided composite T-beam
Publisher: Elsevier BV
Date: 02-2016
Understanding the static performance of composite helical springs with braided nested structures
Publisher: Elsevier BV
Date: 2024
Conductive nanocomposite hydrogels with self-healing property
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4RA05381H
Abstract: A flexible, electrically conducting hydrogel with self-healing repeatability can be of use in emerging fields such as soft passive resistors–capacitors and electro-active soft sensor devices, but combining all these properties remains a challenging task.
A X-ray Excitable Vibrational AIE System Based on Platinum (II) Salts
Publisher: American Chemical Society (ACS)
Date: 16-07-2019
DOI: 10.26434/CHEMRXIV.8796098.V2
Abstract: The current work reported an inorganic salt based aggregation-induced emission system which can be excited by X-ray. The underlying mechanism has been systematically studied.
Smart surface-enhanced Raman scattering traceable drug delivery systems
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6NR03869G
Abstract: A smart drug delivery system with non-destructive surface-enhanced Raman scattering tracing tags and targeted cancer-cell cytotoxicities is constructed.
Semi-quantitative evaluation of seafood spoilage using filter-paper strips loaded with an aggregation-induced emission luminogen
Publisher: Elsevier BV
Date: 10-2020
Three-Dimensional Smart Catalyst Electrode for Oxygen Evolution Reaction
Publisher: Wiley
Date: 14-07-2015
CF/EP composite laminates with carbon black and copper chloride for improved electrical conductivity and interlaminar fracture toughness
Publisher: Elsevier BV
Date: 02-2012
Simulation of high-output and lightweight sliding-mode triboelectric nanogenerators
Publisher: Elsevier BV
Date: 12-2019
Application of Aggregation-Induced Emission Fluorogens for Detection and Quantification of Toxic Chemicals in Small Aquatic Organisms
Publisher: Springer International Publishing
Date: 10-10-2018
Analysis on cracking in hard thin films on a soft substrate under Berkovich indentation
Publisher: Elsevier BV
Date: 02-2015
Enlightening Freeze–Thaw Process of Physically Cross-Linked Poly(vinyl alcohol) Hydrogels by Aggregation-Induced Emission Fluorogens
Publisher: American Chemical Society (ACS)
Date: 29-04-2019
Cost-Effective Double-Layer Hydrogel Composites for Wound Dressing Applications
Publisher: MDPI AG
Date: 12-03-2018
Developing a fluorescent sensing based portable medical open-platform - a case study for albuminuria measurement in chronic kidney disease screening and monitoring
Publisher: Elsevier BV
Date: 08-2022
Konjac Glucomannan Induced Retarding Effects on the Early Hydration of Cement
Publisher: MDPI AG
Date: 07-03-2022
Abstract: Customarily, retarders serve as the setting time regulators of cement-based composites to meet the demands of various construction environments. However, the limited ability to adjust the setting time restricts the application of polysaccharides in special environments. In this study, we reported a naturally high-efficiency retarder, konjac glucomannan (KGM), and studied the mechanism of its effect on the hydration of ordinary Portland cement. Incorporating KGM could significantly prolong cement hydration without strength damage. Furthermore, the active hydroxyl group (−OH, rich in KGM) could chelate with Ca2+ (released from cement hydration) to form a cross-linking network, which is adsorbed on the surface of cement clinker, thereby being conducive to delaying the process of cement hydration and reducing the heat of hydration. The findings of this study are critical to the ongoing efforts to develop polysaccharide-cement-based composite materials for application in various special environments.
Modeling and Simulation of Failure in Fiber-Reinforced Polymer Composites
Publisher: Springer Nature Singapore
Date: 2022
Nondestructive Damage Detection of Epoxy/Synthetic Fiber Braided Composites
Publisher: Springer Nature Singapore
Date: 2022
Mechanical properties, thermal stability and microstructure evolution of carbon fiber-reinforced epoxy composites exposed to high-dose γ-rays
Publisher: Elsevier BV
Date: 05-2022
On mechanical properties of nanocomposite hydrogels: Searching for superior properties
Publisher: Elsevier BV
Date: 06-2022
An algorithm for automatic 2D finite element mesh generation with line constraints
Publisher: Elsevier BV
Date: 12-2011
Exploring adsorption mechanism of glyphosate on pristine and elemental doped graphene
Publisher: Elsevier BV
Date: 09-2021
Capture and characterisation of microplastics printed on paper via laser printer's toners
Publisher: Elsevier BV
Date: 10-2021
Graphene oxide coupled carbon nitride homo-heterojunction photocatalyst for enhanced hydrogen production
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6QM00241B
Abstract: A metal-free ternary homo-heterojunction is developed for the first time and demonstrated for enhanced photocatalytic hydrogen production.
Dual Photoluminescence Emission Carbon Dots for Ratiometric Fluorescent GSH Sensing and Cancer Cell Recognition
Publisher: American Chemical Society (ACS)
Date: 30-03-2020
Fe–N Decorated Hybrids of CNTs Grown on Hierarchically Porous Carbon for High‐Performance Oxygen Reduction
Publisher: Wiley
Date: 17-07-2014
Abstract: An Fe-N-decorated hybrid material of carbon nanotubes (CNTs) grown in situ from porous carbon microblocks is designed and constructed. This material successfully combines the desirable merits for oxygen reduction reaction (ORR), such as highly active Fe-N species, good conductivity, large pore size, and sufficient surface area. These structural advantages give this low-priced material an outstanding catalytic performance for ORR closely comparable with Pt/C of the same quantity.
Interactions between typical functional groups of soil organic matter and mica (001) surface: A DFT study
Publisher: Elsevier BV
Date: 2022
Modelling low-speed drop-weight impact on composite laminates
Publisher: Elsevier BV
Date: 08-2014
1CoFe/C Nanosheets on Hollow Carbon Fibers as Composite Fabrics for Electromagnetic Interference Shielding
Publisher: American Chemical Society (ACS)
Date: 20-07-2022
Reduced recombination and low-resistive transport of electrons for photo-redox reactions in metal-free hybrid photocatalyst
Publisher: AIP Publishing
Date: 18-06-2018
DOI: 10.1063/1.5038785
Abstract: Photoinduced charge separation against their faster recombination is a rate determinant for photocatalytic proton reduction to hydrogen. Dissociation of electron-hole pairs into free electrons and holes in carbon nitrides greatly suffered from the inherent high recombination rate. This study has shown that coupling two energetically optimized, but with different phases carbon nitrides in the form of hybrid could significantly inhibit the charge carrier recombination and facilitate the overall charge transfer processes. It is also found that the potential gradient in this homojunction delocalizes electrons and holes, and increases the spatial charge separation. Therefore, this leads to a record high apparent quantum efficiency of 5% for photocatalytic H2 production from water under visible light irradiation in the absence of a precious metal (e.g., Pt) cocatalyst.
Examining the supplementation of exogenous lipid and antioxidant to improve the survivability of post-thaw oocytes in Mediterranean mussels, Mytilus galloprovincialis
Publisher: Elsevier BV
Date: 2024
Simulation Guided Hand-Driven Portable Triboelectric Nanogenerator: Design, Optimisation, and Evaluation
Publisher: MDPI AG
Date: 12-08-2021
DOI: 10.3390/MI12080955
Abstract: Inspired by the fundamental mechanics of an ancient whirligig (or buzzer toy 3300 BC), a hand-driven rotational triboelectric nanogenerator (HDR-TENG) was designed and optimised, guided by our recently reported mathematical modelling. This modelling indicates that the power generated by HDR-TENG is a function of the number of segments, rotational speed, and tribo-surface spacing with different weighting sensitivities. Based on the simulation results, additive manufacturing technology was combined with commercially available components to cost-effectively fabricate the HDR-TENG. The fabricated HDR-TENG can provide stable and adjustable rotational speed up to 15,000 rpm with a linear hand stretching. The output voltage of HDR-TENG maintains a constant value within 50,000 cycles of testing when using Nylon 66 and PTFE as the triboelectric material. It can charge a 47 μF capacitor to 2.2 V in one minute. This study provides a cost-effective portable HDR-TENG device with adjustable high rotational speed, high power output, and long durable life, creating opportunities to provide a power supply for point-of-care devices in remote or resource-poor settings and applications in science and engineering education.
Moisture-cured elastomeric transparent UV and X-ray shielding organic–inorganic hybrids
Publisher: Springer Science and Business Media LLC
Date: 23-03-2010
High-performance polyphenylene sulfide composites with ultra-high content of glass fiber fabrics
Publisher: Elsevier BV
Date: 10-2019
Toughness Assessment and Fracture Mechanism of Brittle Thin Films Under Nano-Indentation
Publisher: InTech
Date: 19-10-2016
DOI: 10.5772/64117
Mesoporous hybrid material composed of Mn3O4nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CC43338B
Abstract: The hybrid material composed of Mn3O4 nanoparticles on nitrogen-doped graphene was prepared via a solvothermal process and investigated for the first time as a catalyst for oxygen reduction reaction (ORR). Its high ORR activity, excellent durability and tolerance to methanol make this hybrid material a promising candidate for highly efficient ORR in fuel cells and metal-air batteries.
Cost effective biochar gels with super capabilities for heavy metal removal
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA10692G
Abstract: A novel KGM based biochar with super heavy metal removal capacities can be prepared conveniently.
Carbon Fibre-Reinforced Polymer Laminates with Nanofiller-Enhanced Multifunctionality
Publisher: Springer International Publishing
Date: 29-11-2016
Enhancing water swelling ability and mechanical properties of water‐swellable rubber by PAA/SBS nanofiber mats
Publisher: Wiley
Date: 17-08-2016
DOI: 10.1002/APP.44213
Magnetic Core–Shell Silica Nanoparticles with Large Radial Mesopores for siRNA Delivery
Publisher: Wiley
Date: 19-05-2016
Abstract: A novel type of magnetic core-shell silica nanoparticles is developed for small interfering RNA (siRNA) delivery. These nanoparticles are fabricated by coating super-paramagnetic magnetite nanocrystal clusters with radial large-pore mesoporous silica. The amine functionalized nanoparticles have small particle sizes around 150 nm, large radial mesopores of 12 nm, large surface area of 411 m(2) g(-1) , high pore volume of 1.13 cm(3) g(-1) and magnetization of 25 emu g(-1) . Thus, these nanoparticles possess both high loading capacity of siRNA (2 wt%) and strong magnetic response under an external magnetic field. An acid-liable coating composed of tannic acid can further protect the siRNA loaded in these nanoparticles. The coating also increases the dispersion stability of the siRNA-loaded carrier and can serve as a pH-responsive releasing switch. Using the magnetic silica nanoparticles with tannic acid coating as carriers, functional siRNA has been successfully delivered into the cytoplasm of human osteosarcoma cancer cells in vitro. The delivery is significantly enhanced with the aid of the external magnetic field.
Experimental measurement and numerical simulation of viscosity reduction effects in HMMPE containing a small amount of exfoliated organoclay-modified TLCP composite
Publisher: Elsevier BV
Date: 2010
Intramolecular motion-associated biomaterials for image-guided cancer surgery
Publisher: Elsevier BV
Date: 2020
Turbo thin film continuous flow production of biodiesel from fungal biomass
Publisher: Elsevier BV
Date: 02-2019
DOI: 10.1016/J.BIORTECH.2018.11.015
Abstract: Direct biodiesel production from wet fungal biomass may significantly reduce production costs, but there is a lack of fast and cost-effective processing technology. A novel thin film continuous flow process has been applied to study the effects of its operational parameters on fatty acid (FA) extraction and FA to fatty acid methyl ester (FAME) conversion efficiencies. Single factor experiments evaluated the effects of catalyst concentration and water content of biomass, while factorial experimental designs determined the interactions between catalyst concentration and biomass to methanol ratio, flow rate, and rotational speed. Direct transesterification (DT) of wet Mucor plumbeus biomass at ambient temperature and pressure achieved a FA to FAME conversion efficiency of >90% using 3 wt/v % NaOH concentration, if the water content was ≤50% (w/w). In comparison to existing DT methods, this continuous flow processing technology has an estimated 90-94% reduction in energy consumption, showing promise for up-scaling.
Rapid Predicting the Impact Behaviors of Marine Composite Laminates
Publisher: Trans Tech Publications, Ltd.
Date: 03-2015
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.813.19
Abstract: There are challenges of using composite laminates in the marine engineering, i.e., composites are frequently suffering from the effects of impaction including wave impaction, ship or other objects hitting, missiles or bullets hitting and other especially conditions. It is significant to understand the impact behaviors of laminates, in this research, the impact responses of typical laminates are investigated numerically. The delamination responses among the plies and fibre and/or matrix damage responses within the plies are simulated to understand the impaction behaviours of laminates under impaction conditions. The impact damage of composite laminates in the form of intra-and/or inter-laminar cracking is modelled by using stress-based criteria for damage initiation, and fracture mechanics technique is used to capture its evolution. Interface cohesive elements are inserted between plies with appropriate mixed-mode damage laws to predict the delamination. A group of graphite fibre/epoxy laminates with impact energies of 5, 10, 15 and 20 J, respectively, are simulated with a full scale FE model and a simplified FE model respectively. Through comparing the simulation results with each other, we find out that the impact behaviors obtained in the simplified FE model is comparable to experiments with a short computing time, but the simplified model cannot represent the properties of laminate after impact.
Aggregation-induced emission lights up the swelling process: a new technique for swelling characterisation of hydrogels
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9QM00054B
Abstract: The characterization of the swelling properties in hydrogels suffers uncertainty due to the limitations that occur during weight change measurement.
Machining Method for Cycloid Approximating Involute and Straight Lines
Publisher: Trans Tech Publications, Ltd.
Date: 10-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.431.99
Abstract: A universal mathematical model for machining cycloid approximating involute and straight lines is developed in this study based on the definition and parameter-equation of cycloid and the machining principle of cycloid rotational indexing. The machining ex les of the various parts are presented to show the feasibility of this model.
Molecular Crystal Engineering of Organic Chromophores for NIR-II Fluorescence Quantification of Cerebrovascular Function
Publisher: American Chemical Society (ACS)
Date: 14-02-2022
Abstract: Although molecular design strategies for highly bright near-infrared II (NIR-II) fluorophores were proposed, the lack of solid structural identification (single crystal) hinders the further development of this field. This thorny issue is addressed by performing the structure-function relationship of NIR-II dyes, as confirmed by molecular single crystal engineering. Single crystal structure analysis confirms that twisted architectures (large dihedral angles ∼70°) and loose packing patterns (intermolecular distance of ∼3.4-4.5 Å) are key elements to enhance the absolute quantum yield (QY) in the solid state. Through regulating donor-acceptor distance and donor-acceptor interactions, the resultant well-defined TBP-
A two-phase flow model coupling with volume of fluid and immersed boundary methods for free surface and moving structure problems
Publisher: Elsevier BV
Date: 12-2013
Organoclay/thermotropic liquid crystalline polymer nanocomposites. Part II: shear-induced phase separation
Publisher: Springer Science and Business Media LLC
Date: 23-04-2010
Quantitative evaluation and in vivo visualization of mercury ion bioaccumulation in rotifers by novel aggregation-induced emission fluorogen nanoparticles
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7EN00599G
Abstract: In this study, a specifically-designed AIEgen was used to quantitatively evaluate the bioaccumulation of Hg 2+ and visualize Hg 2+ kinetics in vivo within the rotifer for the first time.
Collecting Microplastics in Gardens: Case Study (i) of Soil
Publisher: Frontiers Media SA
Date: 10-2021
DOI: 10.3389/FENVS.2021.739775
Abstract: As an emerging contaminant, microplastic is receiving increasing attention. However, the contamination source is not fully known, and new sources are still being identified. Herewith, we report that microplastics can be found in our gardens, either due to the wrongdoing of leaving plastic bubble wraps to be mixed with mulches or due to the use of plastic landscape fabrics in the mulch bed. In the beginning, they were of large sizes, such as & 5 mm. However, after 7 years in the garden, owing to natural degradation, weathering, or abrasion, microplastics are released. We categorize the plastic fragments into different groups, 5 mm–0.75 mm, 0.75 mm–100 μm, and 100–0.8 μm, using filters such as kitchenware, meaning we can collect microplastics in our gardens by ourselves. We then characterized the plastics using Raman image mapping and a logic-based algorithm to increase the signal-to-noise ratio and the image certainty. This is because the signal-to-noise ratio from a single Raman spectrum, or even from an in idual peak, is significantly less than that from a spectrum matrix of Raman mapping (such as 1 vs. 50 × 50) that contains 2,500 spectra, from the statistical point of view. From the 10 g soil we s led, we could detect the microplastics, including large (5 mm–100 μm) fragments and small (& μm) ones, suggesting the degradation fate of plastics in the gardens. Overall, these results warn us that we must be careful when we do gardening, including selection of plastic items for gardens.
Vortex fluidic mediated direct transesterification of wet microalgae biomass to biodiesel
Publisher: Elsevier BV
Date: 10-2018
DOI: 10.1016/J.BIORTECH.2018.06.103
Abstract: A bottleneck in the production of biodiesel from microalgae is the dewatering and lipid extraction process which is the dominant energy penalty and cost. A novel biodiesel production platform based on vortex fluidic device (VFD)-assisted direct transesterification (DT) of wet microalgal biomass of Chloroparva pannonica was developed and evaluated. Fatty acid extraction and fatty acid to FAME conversion efficiencies were used at different parameter settings to evaluate performance of the processing technology in confined and continuous mode. A response surface method based on Box-Behnken experimental design was used to determine the effects of water content, the ratio of biomass to methanol and residence time in the VFD. Average extraction efficiencies were 41% and conversion efficiencies >90% with the processing technology showing a broad tolerance to parameter settings. The findings suggest that VFD-assisted DT is a simple and effective way to produce biodiesel directly from wet microalgae biomass at room temperature.
Nanosilica-reinforced epoxy composites for marine applications
Publisher: Elsevier
Date: 2015
Adsorption and dissociation behavior of water on pristine and defected calcite {104} surfaces: A DFT study
Publisher: Elsevier BV
Date: 08-2021
Surface activated carbon nitride nanosheets with optimized electro-optical properties for highly efficient photocatalytic hydrogen production
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5TA10194H
Abstract: We introduce a three-step method (co-polymerization, surface activation and exfoliation) for the first time to synthesize sub-nanometer-thin carbon nitride nanosheets as highly efficient hydrogen evolution photocatalysts.
Anti-Collision Assessment and Prediction Considering Material Corrosion on an Offshore Protective Device
Publisher: MDPI AG
Date: 15-08-2017
DOI: 10.3390/JMSE5030037
Carbon fiber composite multistrand helical springs with adjustable spring constant: design and mechanism studies
Publisher: Elsevier BV
Date: 05-2020
Photocatalytic and antibacterial properties of copper hydroxyphosphate with hierarchical superstructures synthesized by a hydrothermal method
Publisher: Elsevier BV
Date: 02-2018
Multi-directional functionally graded materials for enhancing the durability of shell structures
Publisher: Elsevier BV
Date: 08-2019
Shark Skin—An Inspiration for the Development of a Novel and Simple Biomimetic Turbulent Drag Reduction Topology
Publisher: MDPI AG
Date: 13-12-2022
DOI: 10.3390/SU142416662
Abstract: In this study, a novel but simple biomimetic turbulent drag reduction topology is proposed, inspired by the special structure of shark skin. Two effective, shark skin-inspired, ribletted surfaces were designed, their topologies were optimized, and their excellent drag reduction performances were verified by large eddy simulation. The designed riblets showed higher turbulent drag reduction behavior, e.g., 21.45% at Re = 40,459, compared with other experimental and simulated reports. The effects of the riblets on the behavior of the fluid flow in pipes are discussed, as well as the mechanisms of fluid drag in turbulent flow and riblet drag reduction. Riblets of various dimensions were analyzed and the nature of fluid flow over the effective shark skin surface is illustrated. By setting up the effective ribletted surface on structure’s surface, the shark skin-inspired, biomimetic, ribletted surface effectively reduced friction resistance without external energy support. This method is therefore regarded as the most promising drag reduction technique.
Assessment of transverse impact damage in GF/EP laminates of conductive nanoparticles using electrical resistivity tomography
Publisher: Elsevier BV
Date: 09-2012
Numerical study of the vortex-induced vibration of a riser taking into account the variation of the tension
Publisher: Informa UK Limited
Date: 17-03-2023
A sharp interface immersed boundary/VOF model coupled with wave generating and absorbing options for wave-structure interaction
Publisher: Elsevier BV
Date: 2014
Regulating Al2O3/PAN/PEG Nanofiber Membranes with Suitable Phase Change Thermoregulation Features
Publisher: MDPI AG
Date: 12-08-2023
DOI: 10.3390/NANO13162313
Abstract: To address the thermal comfort needs of the human body, the development of personal thermal management textile is critical. Phase change materials (PCMs) have a wide range of applications in thermal management due to their large thermal storage capacity and their isothermal properties during phase change. However, their inherent low thermal conductivity and susceptibility to leakage severely limit their application range. In this study, polyethylene glycol (PEG) was used as the PCM and polyacrylonitrile (PAN) as the polymer backbone, and the thermal conductivity was increased by adding spherical nano-alumina (Al2O3). Utilizing coaxial electrospinning technology, phase-change thermoregulated nanofiber membranes with a core-shell structure were created. The study demonstrates that the membranes perform best in terms of thermal responsiveness and thermoregulation when 5% Al2O3 is added. The prepared nanofiber membranes have a melting enthalpy of 60.05 J·g−1 and retain a high enthalpy after 50 cycles of cold and heat, thus withstanding sudden changes in ambient temperature well. Additionally, the nanofiber membranes have excellent air permeability and high moisture permeability, which can increase wearer comfort. As a result, the constructed coaxial phase change thermoregulated nanofiber membranes can be used as a promising textile for personal thermal management.
Metal-doped graphitic carbon nitride (g-C3N4) as selective NO2 sensors: A first-principles study
Publisher: Elsevier BV
Date: 10-2018
Application of Composite Materials to Large Marine Hatch Cover
Publisher: Trans Tech Publications, Ltd.
Date: 08-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.560-561.809
Abstract: A large number of laminates have been used in marine structures, such as small boat hulls, superstructures and propellers, etc. In this study, the using of composites in large scale marine hatch cover and comparison of strength, weight and cost between the conventional marine hatch cover and the composite hatch cover are investigated. The results show that the composite hatch cover is feasible and has great potential for future use because of its higher strength, lighter weight, super-corrosion resistance and economic.
Bioactives From Marine Animals: Potential Benefits for Human Reproductive Health
Publisher: Frontiers Media SA
Date: 30-03-2022
DOI: 10.3389/FMARS.2022.872775
Abstract: Reproductive and sexual health issues, including infertility and sexual dysfunctions (SD), are common concerns affecting millions of reproductive age worldwide. Scattered literature reports that marine animals such as oysters, sea cucumbers, seahorses and spoon worms have unique bioactive compounds like saponins, steroids, seahorse-derived hydrolysates, polypeptide, oligopeptides and essential trace elements that significantly improve infertility, hormonal imbalance, SD, and impotence. In addition, these compounds have exhibited pharmacological properties against reproductive problems due to diabetes and exposure to electromagnetic fields, cyclophosphamide, or a high exercise load. This review presents the first critical assessment of the advances in understanding and applying bioactives from marine organisms to support human reproductive health. Key knowledge and technical gaps have been identified for future research to improve the lack of in-depth understanding of the mechanism and action of these bioactives in human clinical studies. There is a need to develop simple, selective, low-cost, and scalable processes to isolate and purify in idual bioactive compounds for industrial applications. The optimizing culturing and farming conditions for specific bioactive compounds from targeted species are suggested for sustainable production. The review indicates a promising future of extracts and marine-derived bioactives as functional foods in preventing and managing human reproductive health issues, but mechanistic studies and further clinical trials are urgently required to evaluate their efficacy and safety.
DFT study of adsorption and dissociation behavior of H2S on Fe-doped graphene
Publisher: Elsevier BV
Date: 10-2014
Novel material and structural design for large-scale marine protective devices
Publisher: Elsevier BV
Date: 03-2015
Aggregation-Enhanced Emissions of Intramolecular Excimers in Disubstituted Polyacetylenes
Publisher: American Chemical Society (ACS)
Date: 16-07-2008
DOI: 10.1021/JP800296T
Abstract: Whereas chain aggregation commonly quenches light emission of conjugated polymers, we here report a phenomenon of aggregation-induced emission enhancement (AIEE): luminescence of polyacetylenes is dramatically boosted by aggregate formation. Upon photoexcitation, poly(1-phenyl-1-alkyne)s and poly(diphenylacetylene)s emit blue and green lights, respectively, in dilute THF solutions. The polymers become more emissive when their chains are induced to aggregate by adding water into their THF solutions. The polymer emissions are also enhanced by increasing concentration and decreasing temperature. Lifetime measurements reveal that the excited species of the polymers become longer-lived in the aggregates. Conformational simulations suggest that the polymer chains contain n=3 repeat units that facilitate the formation of intramolecular excimers. The AIEE effects of the polymers are rationalized to be caused by the restrictions of their intramolecular rotations by the aggregate formation.
Continuous and scalable manufacture of aggregation induced emission luminogen fibers for anti-counterfeiting and hazardous gas detecting smart textiles
Publisher: Elsevier BV
Date: 07-2021
Understanding friction and wear properties of carbon fiber/epoxy stitched composites
Publisher: Elsevier BV
Date: 06-2023
Surface roughness effect on cylinder vortex-induced vibration at moderate Re regimes
Publisher: Elsevier BV
Date: 03-2021
Vortex fluidic mediated one-step fabrication of polyvinyl alcohol hydrogel films with tunable surface morphologies and enhanced self-healing properties
Publisher: Springer Science and Business Media LLC
Date: 15-04-2020
Hydrogel-derived luminescent scaffolds for biomedical applications
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0QM01140A
Abstract: We provide a review on how luminescence functionality can be integrated with modifiable hydrogels to extend the frontiers of luminescent materials for health technologies.
Identification and visualisation of microplastics/ nanoplastics by Raman imaging (ii): Smaller than the diffraction limit of laser?
Publisher: Elsevier BV
Date: 09-2020
Synthesis and Curing of Hyperbranched Poly(triazole)s with Click Polymerization for Improved Adhesion Strength
Publisher: American Chemical Society (ACS)
Date: 08-02-2010
DOI: 10.1021/AM9008727
Abstract: We successfully synthesized hyperbranched poly(triazole)s by in situ click polymerization of diazides 1 and triyne 2 monomers on different metal surfaces (copper, iron, and aluminum) and characterized their adhesive properties. Optimizations were performed to obtain high adhesive strength at different temperatures by analyzing the effects of curing kinetics, annealing temperature and time, catalyst, monomer ratio, surface conditions, alkyl chain length of diazides 1, etc. The adhesive bonding strength with metal substrate is 2 orders of magnitude higher than similar hyperbranched poly(triazole)s made by click polymerization and clearly higher than some commercial adhesives at elevated temperatures. With the same conditions, adhesives prepared on aluminum and iron substrates have higher adhesive strength than those prepared on copper substrate, and an excess of triyne 2 monomer in synthesis has greater adhesive strength than an excess of diazide 1 monomer. Tof-SIMS experiment was employed to understand these phenomena, and the existence of an interphase between the polymer and metal surface was found to be critical for adhesive bonding with thicker interphase (excess of triyne 2 monomer) and the higher binding energy between polymer atoms and substrate atoms (e.g., aluminum substrate) generating the higher bonding strength. In addition, the light-emitting property of synthesized polymers under UV irradiation can be used to check the failure mode of adhesive bonding.
New and efficient fluorescent and phosphorescent luminogens: general discussion
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7FD90003A
Aggregation-Induced Emission (AIE), Life and Health
Publisher: American Chemical Society (ACS)
Date: 24-07-2023
Highlights from Faraday Discussion: aggregation-induced emission
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7CC90086D
Abstract: Faraday Discussion 196: aggregation-induced emission brought together around 100 researchers to discuss recent progress, current challenges and potential breakthroughs in the design of new AIE luminogens, the understanding of AIE mechanisms and the exploration of advanced technological applications.
Material selection and manufacturing of riblets for drag reduction: An updated review
Publisher: SAGE Publications
Date: 04-2016
Abstract: Riblets are a well-researched and understood passive method for achieving viscous drag reduction. Since the 1970s, researchers have found that, with riblets, viscous drag reduction in the order of 8% is achievable in turbulent air and fluid flows. Most of the relevant literature provides insight into the drag-reductive mechanisms of riblets and the effect of riblet morphological design in varying flow conditions. A few recent studies have begun to investigate the influence of material properties on the drag-reductive ability of riblet surfaces with promising results. We here provide an updated review of material selection and riblet manufacture and show current trends. A brief summary is provided of the theories of riblet drag-reductive ability, riblet surface design, the role of material selection for drag reduction and current manufacturing techniques.
Magnetite Nanoparticle/Copper Phosphate Nanoflower Composites for Fenton-like Organic Dye Degradation
Publisher: American Chemical Society (ACS)
Date: 25-01-2022
Water-Swelling Rubber Containing Small Amount of Nanofillers with Enhanced Water Swelling Durability
Publisher: Trans Tech Publications, Ltd.
Date: 09-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.774-776.544
Abstract: A series of water-swelling rubbers (WSR) were prepared by directly mixing room temperature vulcanization-2 components silicone rubber (RTV-2 SR) with superabsorbent polymer (SAP) and nanofiller (s) (halloysite nanotube or/and CaCO 3 ). The effects of component on its mechanical behaviours and water-absorbent properties such as degree of swelling, swelling ratio, and weight loss ratio were investigated. The equilibrium swelling ratio increased with increasing amounts of water-absorbent resin. Well-dispersed nanofiller (s) increased the mechanical properties of WSR and prevented SAP breaking off from the elastomer network to effectively enhance the water-swelling durability of WSR.
Building Highly Light‐Harvesting Near‐Infrared AIEgens Using Triazole‐Based Luminescent Core for Improved Intravital Afterglow Imaging
Publisher: Wiley
Date: 03-03-2023
Abstract: Development of the powerful building block is of great significance to construct materials with advanced properties. Herein, for the first time, a triazole‐based luminescent core with balanced twist and conjugation is reported, which is explored to construct a D‐A near‐infrared (NIR) aggregation‐induced emission luminogens (TPT‐DCM) with high molar extinction coefficient, good brightness and excellent reactive oxygen species generation rate. These features enable it to function as a nanoprobe with ultralong NIR afterglow luminescence (up to 20 days) and ultrahigh tumor‐to‐liver signal ratio (up to 187) for in vivo deep‐tissue afterglow imaging (with depth reaching 1.6 cm), in combination with chemiluminescence resonance energy transfer aided by active Schaap's dioxetane. Moreover, thanks to the excellent properties of the nanoprobe, the afterglow imaging‐guided surgery navigation can be successfully conduced to remove the tumors especially with tiny size of 1 mm. This is particularly useful to eliminate tumor residuals and prevent the cancer recurrence after surgery.
Organoclay/thermotropic liquid crystalline polymer nanocomposites. III. Effects of fully exfoliated organoclay on morphology, thermal, and rheological properties
Publisher: Wiley
Date: 03-02-2010
DOI: 10.1002/POLB.21942
Correction: Mesoporous hybrid material composed of Mn3O4 nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6CC90177H
Abstract: Correction for ‘Mesoporous hybrid material composed of Mn 3 O 4 nanoparticles on nitrogen-doped graphene for highly efficient oxygen reduction reaction’ by Jingjing Duan et al., Chem. Commun. , 2013, 49 , 7705–7707.
Biodegradable carboxymethyl inulin as a scale inhibitor for calcite crystal growth: Molecular level understanding
Publisher: Elsevier BV
Date: 03-2016
High Solid-State Efficiency Fluorescent Main Chain Liquid Crystalline Polytriazoles with Aggregation-Induced Emission Characteristics
Publisher: American Chemical Society (ACS)
Date: 22-11-2011
DOI: 10.1021/MA2021979
Organoclay-modified thermotropic liquid crystalline polymers as viscosity reduction agents for high molecular mass polyethylene
Publisher: Springer Science and Business Media LLC
Date: 14-05-2010
A Two-Phase Flow Model with VOF for Free Surface Flow Problems
Publisher: Trans Tech Publications, Ltd.
Date: 11-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.232.279
Abstract: A numerical model based on the two-phase flow model for incompressible viscous fluid with a complex free surface has been developed in this study. The two-step projection method is employed to solve the Navier–Stokes equations in the numerical solutions, and finite difference method on a staggered grid is used throughout the computation. The two-order accurate volume of fluid (VOF) method is used to track the distorted and broken free surfaces. The two-phase model is first validated by simulating the dam break over a dry bed, in which the numerical results and experimental data agree well. Then 2-D fluid sloshing in a horizontally excited rectangular tank at different excitation frequencies is simulated using this two-phase model. The results of this study show that the two-phase flow model with VOF method is a potential tool for the simulation of nonlinear fluid sloshing. These studies demonstrate the capability of the two-phase model to simulate free surface flow problems with considering air movement effects.
Enlarging the Reservoir: High Absorption Coefficient Dyes Enable Synergetic Near Infrared‐II Fluorescence Imaging and Near Infrared‐I Photothermal Therapy
Publisher: Wiley
Date: 07-05-2021
Abstract: Although organic materials with near infrared (NIR)‐II fluorescence and a photothermal effect have been widely investigated for the accurate diagnosis and treatment of tumors, optimizing the output signals of both remain challenging. Here, a strategy by “enlarging absorption reservoir” to address this issue, since an increase in photon absorption can naturally enhance output signals, is proposed. As a proof‐of‐concept, a large π‐conjugated diketopyrrolopyrrole (DPP) unit is selected to fabricate strong light‐absorbing systems. To enhance solid‐state fluorescence, highly twisted alkylthiophene–benzobisthiadiazole–alkylthiophene and triphenylamine rotor are introduced to restrict the strong intermolecular π–π interactions. Moreover, the number of DPP units in molecules is engineered to optimize photophysical properties. Results show that TDADT with two DPP units possesses an exceptionally high molar absorptivity of 2.1 × 10 5 L mol −1 cm −1 at 808 nm, an acceptable NIR‐II quantum yield of 0.1% (emission peak at 1270 nm), and a sizeable photothermal conversion efficiency of 60.4%. The excellent photophysical properties of the TDADT nanoparticles are particularly suitable for in vivo NIR‐II imaging‐guided cancer surgery and NIR‐I photothermal therapy. The presented strategy provides a new approach of designing highly efficient NIR‐II phototheranostic agents.
Organoclay/thermotropic liquid crystalline polymer nanocomposites. Part IV: organoclay of comparable size to fully extended TLCP molecules
Publisher: Springer Science and Business Media LLC
Date: 11-03-2010
Significant Enhancement of Water Splitting Activity of N‐Carbon Electrocatalyst by Trace Level Co Doping
Publisher: Wiley
Date: 06-2016
Abstract: Replacement of precious metal electrocatalysts with highly active and cost efficient alternatives for complete water splitting at low voltage has attracted a growing attention in recent years. Here, this study reports a carbon-based composite co-doped with nitrogen and trace amount of metallic cobalt (1 at%) as a bifunctional electrocatalyst for water splitting at low overpotential and high current density. An excellent electrochemical activity of the newly developed electrocatalyst originates from its graphitic nanostructure and highly active Co-Nx sites. In the case of carefully optimized s le of this electrocatalyst, 10 mA cm(-2) current density can be achieved for two half reactions in alkaline solutions-hydrogen evolution reaction and oxygen evolution reaction-at low overpotentials of 220 and 350 mV, respectively, which are smaller than those previously reported for nonprecious metal and metal-free counterparts. Based on the spectroscopic and electrochemical investigations, the newly identified Co-Nx sites in the carbon framework are responsible for high electrocatalytic activity of the Co,N-doped carbon. This study indicates that a trace level of the introduced Co into N-doped carbon can significantly enhance its electrocatalytic activity toward water splitting.
Microplastics generated when opening plastic packaging
Publisher: Springer Science and Business Media LLC
Date: 19-03-2020
DOI: 10.1038/S41598-020-61146-4
Abstract: Millions of tonnes of plastics have been released into the environment. Although the risk of plastics to humans is not yet resolved, microplastics, in the range of 1 μm - 5 mm, have entered our bodies, originating either from ingestion via the food chain or from inhalation of air. Generally there are two sources of microplastics, either directly from industry, such as cosmetic exfoliants, or indirectly from physical, chemical and biological fragmentation of large ( mm) plastic residues. We have found that microplastics can be generated by simple tasks in our daily lives such as by scissoring with scissors, tearing with hands, cutting with knives or twisting manually, to open plastics containers/bags/tapes/caps. These processes can generate about 0.46–250 microplastic/cm. This amount is dependent on the conditions such as stiffness, thickness, anisotropy, the density of plastic materials and the size of microplastics.This finding sends an important warning, that we must be careful when opening plastic packaging, if we are concerned about microplastics and care about reducing microplastics contamination.
Two degree of freedom flow-induced vibration of cylindrical structures in marine environments: frequency ratio effects
Publisher: Springer Science and Business Media LLC
Date: 23-02-2016
Hyperbranched Poly(silylenephenylenes) from Polycyclotrimerization of A2-Type Diyne Monomers: Synthesis, Characterization, Structural Modeling, Thermal Stability, and Fluorescent Patternin
Publisher: American Chemical Society (ACS)
Date: 21-09-2007
DOI: 10.1021/MA071062D
Aggregated-fluorescent detection of PFAS with a simple chip
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8AY02382D
Abstract: In this study, aggregation-induced emission luminogens (AIEgen) are used for the detection of per- and poly-fluoroalkyl substances (PFAS) including perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS) and 1 H ,1 H ,2 H ,2 H -perfluorooctanesulfonic acid (6:2FTS).
Optoelectronic devices of highly efficient luminogens in the solid state: general discussion
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7FD90004J
An optical fibre sensor for remotely detecting water traces in organic solvents
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA17475B
Abstract: Tetraphenylpyrazine-triphenylamine detects water traces by fluorescence peak wavelength shifting and optical fibres were used for a remote and field-deployable sensing ability.
Hydrogel Based Sensors for Biomedical Applications: An Updated Review
Publisher: MDPI AG
Date: 16-08-2017
DOI: 10.3390/POLYM9080364
Path planning for rendezvous of multiple AUVs operating in a variable ocean
Publisher: IEEE
Date: 06-2014
In situ formed internal water channels improving water swelling and mechanical properties of water swellable rubber composites
Publisher: Wiley
Date: 07-11-2016
DOI: 10.1002/APP.44548
Electrospun tree-like nanofiber membrane: Fabrication and applications for air and water treatments
Publisher: Elsevier
Date: 2021
A Mussel‐Inspired Conductive, Self‐Adhesive, and Self‐Healable Tough Hydrogel as Cell Stimulators and Implantable Bioelectronics
Publisher: Wiley
Date: 25-10-2016
Abstract: A graphene oxide conductive hydrogel is reported that simultaneously possesses high toughness, self-healability, and self-adhesiveness. Inspired by the adhesion behaviors of mussels, our conductive hydrogel shows self-adhesiveness on various surfaces and soft tissues. The hydrogel can be used as self-adhesive bioelectronics, such as electrical stimulators to regulate cell activity and implantable electrodes for recording in vivo signals.
Vortex fluidic induced mass transfer across immiscible phases
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1SC05829K
Abstract: Micron to submicron size Coriolis and Faraday wave induced high shear topological flow regimes in 45° titled rapidly rotating tubes result in high inter-phase mass transfer of immiscible liquids and spontaneous demixing.
Hyperbranched polymers tune the physicochemical, mechanical, and biomedical properties of alginate hydrogels
Publisher: Elsevier BV
Date: 03-2022
Interface design of carbon filler/polymer composites for electromagnetic interference shielding
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1NJ00147G
Abstract: The main three methods of interface design for carbon olymer composites for different carbon materials.
Amplification of Activated Near-Infrared Afterglow Luminescence by Introducing Twisted Molecular Geometry for Understanding Neutrophil-Involved Diseases
Publisher: American Chemical Society (ACS)
Date: 20-01-2022
DOI: 10.1021/JACS.1C11455
Abstract: Understanding the mechanism and progression of neutrophil-involved diseases (e.g., acute inflammation) is of great importance. However, current available analytical methods neither achieve the real-time monitoring nor provide dynamic information during the pathological processes. Herein, a peroxynitrite (ONOO
Atomistic understanding of interfacial interactions between bone morphogenetic protein-7 and graphene with different oxidation degrees
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9QM00324J
Abstract: Bone morphogenetic protein (BMP) adsorption plays an important role in the osteoinduction properties of graphene (G)-based biomaterials.
Fluorine-Free, Highly Durable Waterproof and Breathable Fibrous Membrane with Self-Clean Performance
Publisher: MDPI AG
Date: 27-01-2023
DOI: 10.3390/NANO13030516
Abstract: Lightweight, durable waterproof and breathable membranes with multifunctional properties that mimic nature have great potential for application in high-performance textiles, efficient filtering systems and flexible electronic devices. In this work, the fluoride-free triblock copolymer poly(styrene-b-butadiene-b-styrene) (SBS) fibrous membrane with excellent elastic performance was prepared using electrospinning. According to the bionics of lotus leaves, a coarse structure was built onto the surface of the SBS fiber using dip-coating of silicon dioxide nanoparticles (SiO2 NPs). Polydopamine, an efficient interfacial adhesive, was introduced between the SBS fiber and SiO2 NPs. The hydrophobicity of the modified nanofibrous membrane was highly improved, which exhibited a super-hydrophobic surface with a water contact angle large than 160°. The modified membrane retained super-hydrophobic properties after 50 stretching cycles under 100% strains. Compared with the SBS nanofibrous membrane, the hydrostatic pressure and WVT rate of the SBS/PDA/SiO2 nanofibrous membrane improved simultaneously, which were 84.2 kPa and 6.4 kg·m−2·d−1 with increases of 34.7% and 56.1%, respectively. In addition, the SBS/PDA/SiO2 nanofibrous membrane showed outstanding self-cleaning and windproof characteristics. The high-performance fibrous membrane provides a new solution for personal protective equipment.
Fluorescent Chemosensor for Detection and Quantitation of Carbon Dioxide Gas
Publisher: American Chemical Society (ACS)
Date: 20-09-2010
DOI: 10.1021/JA103947J
Abstract: CO(2) sensing is of great societal implications, as CO(2) is a component of gas mixtures from many natural and anthropogenic processes with huge impacts on globe climate and human well-being. Herein we report a CO(2) assay scheme over a wide concentration range, utilizing a fluorogen with an aggregation-induced emission feature and a liquid with tunable polarity and viscosity. The CO(2) sensing process is specific, quantitative, and interferent tolerant.
Investigation of Hemodynamics in Individualized Aneurysm Based on Computational Fluid Dynamics/Finite Element Method/CT
Publisher: American Scientific Publishers
Date: 06-2020
Chitosan/graphene complex membrane for polymer electrolyte membrane fuel cell: A molecular dynamics simulation study
Publisher: Elsevier BV
Date: 09-2020
Effects of phosphatidylcholine and tocopherol during larval cryopreservation of Pacific oysters (Magallana gigas)
Publisher: Elsevier BV
Date: 09-2023
Numerical investigation on trimming of a single sail in a regatta
Publisher: Springer Science and Business Media LLC
Date: 17-11-2015
Mussel Inspired Modification of Rubber Crumbs for Improved Interfacial Adhesion in Rubber Cement Mortar
Publisher: Springer Science and Business Media LLC
Date: 31-07-2021
Selective bimetallic sites supported on graphene as a promising catalyst for CO2 Reduction: A first-principles study
Publisher: Elsevier BV
Date: 04-2022
Interactions between stearic acid and calcite surfaces: Experimental and computer simulation studies
Publisher: Institution of Engineering and Technology (IET)
Date: 26-07-2021
DOI: 10.1049/BSB2.12017
Effect of loading rate on the creep behaviour of epoxy resin insulators by nanoindentation
Publisher: Springer Science and Business Media LLC
Date: 04-06-2014
Laser-induced energetic material ignition with various fluorinated graphenes: Theoretical and experimental studies
Publisher: Elsevier BV
Date: 12-2021
Effective permeability of gas diffusion layer in proton exchange membrane fuel cells
Publisher: Elsevier BV
Date: 08-2013
Graphene oxide and hyperbranched polymer-toughened hydrogels with improved absorption properties and durability
Publisher: Springer Science and Business Media LLC
Date: 20-02-2015
Proton‐Functionalized Two‐Dimensional Graphitic Carbon Nitride Nanosheet: An Excellent Metal‐/Label‐Free Biosensing Platform
Publisher: Wiley
Date: 04-03-2014
Abstract: Ultrathin graphitic carbon nitride (g-C3N4) nanosheets, due to their interesting two-dimensional graphene-like structure and unique physicochemical properties, have attracted great research attention recently. Here, a new approach is developed to prepare, for the first time, proton-functionalized ultrathin g-C3N4 nanosheets by sonication-exfoliation of bulk g-C3N4 under an acid condition. This method not only reduces the exfoliation time from more than 10 h to 2 h, but also endows the nanosheets with positive charges. Besides retaining the properties of g-C3N4, the obtained nanosheets with the thickness of 2-4 nm (i.e., 6-12 atomic monolayers) also exhibit large specific surface area of 305 m(2) g(-1), enhanced fluorescence intensity, and excellent water dispersion stability due to their surface protonation and ultrathin morphology. The well-dispersed protonated g-C3N4 nanosheets are able to interact with negatively charged heparin, which results in the quenching of g-C3N4 fluorescence. A highly sensitive and highly selective heparin sensing platform based on protonated g-C3N4 nanosheets is established. This metal-free and fluorophore label-free system can reach the lowest heparin detection limit of 18 ng mL(-1).
Printable Hydrogel Arrays for Portable and High-Throughput Shear-Mediated Assays
Publisher: American Chemical Society (ACS)
Date: 20-06-2023
Mussel-Inspired Adhesive and Tough Hydrogel Based on Nanoclay Confined Dopamine Polymerization
Publisher: American Chemical Society (ACS)
Date: 06-03-2017
Abstract: Adhesive hydrogels are attractive biomaterials for various applications, such as electronic skin, wound dressing, and wearable devices. However, fabricating a hydrogel with both adequate adhesiveness and excellent mechanical properties remains a challenge. Inspired by the adhesion mechanism of mussels, we used a two-step process to develop an adhesive and tough polydopamine-clay-polyacrylamide (PDA-clay-PAM) hydrogel. Dopamine was intercalated into clay nanosheets and limitedly oxidized between the layers, resulting in PDA-intercalated clay nanosheets containing free catechol groups. Acrylamide monomers were then added and in situ polymerized to form the hydrogel. Unlike previous single-use adhesive hydrogels, our hydrogel showed repeatable and durable adhesiveness. It adhered directly on human skin without causing an inflammatory response and was easily removed without causing damage. The adhesiveness of this hydrogel was attributed to the presence of enough free catechol groups in the hydrogel, which were created by controlling the oxidation process of the PDA in the confined nanolayers of clay. This mimicked the adhesion mechanism of the mussels, which maintain a high concentration of catechol groups in the confined nanospace of their byssal plaque. The hydrogel also displayed superior toughness, which resulted from nanoreinforcement by clay and PDA-induced cooperative interactions with the hydrogel networks. Moreover, the hydrogel favored cell attachment and proliferation, owning to the high cell affinity of PDA. Rat full-thickness skin defect experiments demonstrated that the hydrogel was an excellent dressing. This free-standing, adhesive, tough, and biocompatible hydrogel may be more convenient for surgical applications than adhesives that involve in situ gelation and extra agents.
MXene-Functionalized Light-Induced Antimicrobial and Waterproof Polyacrylate Coating for Cementitious Materials Protection
Publisher: MDPI AG
Date: 27-04-2023
Abstract: The penetration of external stimuli (microorganisms, ions, etc.) following to the pore is the key reason for the deterioration of cement and concrete structures. Although the traditional methods such as improving the chemical composition of cement and concrete materials can delay the erosion rate, the inevitable pore structure still makes its deterioration a challenge. Based on this, we reported a protective coating for cementitious materials based on phenol and Ti3C2 MXene-modified polyacrylate (MXene-PG/PA). The introduction of phenols enhanced the waterproof properties of polyacrylate by increasing the interaction among molecular chains. Moreover, the introduction of Ti3C2 MXene also endows the MXene-PG/PA coating with good light-induced antimicrobial properties. Beneficial to these designs, the MXene-PG/PA coating exhibited good waterproof properties (the water absorption ratio in seawater decreased by 58.2%) and antimicrobial properties (inhibition of E. coli and S. epidermidis activity under light). These results not only confirm that the MXene-PG/PA coating is a potential candidate of protective coating for cement-based materials, but also provide a new strategy for the design of multifunctional protective coatings.
Artificial intelligence enhanced mathematical modeling on rotary triboelectric nanogenerators under various kinematic and geometric conditions
Publisher: Elsevier BV
Date: 09-2020
SERS and NMR Studies of Typical Aggregation-Induced Emission Molecules
Publisher: American Chemical Society (ACS)
Date: 02-07-2015
Abstract: Over recent decades, aggregation-induced emission (AIE) molecules have attracted increasing attention. Restriction of intramolecular rotation (RIR) has been widely accepted as the cause of the emission when AIE molecules aggregate into clusters. The intramolecular rotation of AIE molecules can be monitored by molecular vibration spectra such as nuclear magnetic resonance (NMR), infrared, and Raman, especially surface-enhanced Raman scattering (SERS) which has high sensitivity down to a single molecule. We employed SERS and NMR to study the AIE emission mechanism and compared experimental results with simulation data to monitor the RIR. Interestingly, we found that intramolecular rotation was also restricted for in idual AIE molecules loaded onto SERS substrate surfaces due to the laid-down configuration.
Developing Novel Fabrication and Optimisation Strategies on Aggregation-Induced Emission Nanoprobe/Polyvinyl Alcohol Hydrogels for Bio-Applications
Publisher: MDPI AG
Date: 02-02-2022
DOI: 10.3390/MOLECULES27031002
Abstract: The current study describes a new technology, effective for readily preparing a fluorescent (FL) nanoprobe-based on hyperbranched polymer (HB) and aggregation-induced emission (AIE) fluorogen with high brightness to ultimately develop FL hydrogels. We prepared the AIE nanoprobe using a microfluidic platform to mix hyperbranched polymers (HB, generations 2, 3, and 4) with AIE (TPE-2BA) under shear stress and different rotation speeds (0–5 K RPM) and explored the FL properties of the AIE nanoprobe. Our results reveal that the use of HB generation 4 exhibits 30-times higher FL intensity compared to the AIE alone and is significantly brighter and more stable compared to those that are prepared using HB generations 3 and 2. In contrast to traditional methods, which are expensive and time-consuming and involve polymerization and post-functionalization to develop FL hyperbranched molecules, our proposed method offers a one-step method to prepare an AIE-HB nanoprobe with excellent FL characteristics. We employed the nanoprobe to fabricate fluorescent injectable bioadhesive gel and a hydrogel microchip based on polyvinyl alcohol (PVA). The addition of borax (50 mM) to the PVA + AIE nanoprobe results in the development of an injectable bioadhesive fluorescent gel with the ability to control AIEgen release for 300 min. When borax concentration increases two times (100 mM), the adhesion stress is more than two times bigger (7.1 mN/mm2) compared to that of gel alone (3.4 mN/mm2). Excellent dimensional stability and cell viability of the fluorescent microchip, along with its enhanced mechanical properties, proposes its potential applications in mechanobiology and understanding the impact of microstructure in cell studies.
Organoclay/thermotropic liquid crystalline polymer nanocomposites. Part V: morphological and rheological studies
Publisher: Springer Science and Business Media LLC
Date: 09-02-2010
Strategies in boosting photosensitization for biomedical applications
Publisher: Springer Science and Business Media LLC
Date: 14-01-2022
On the qualitative dynamics of rotating disks: Thermal shocks and structural integrity
Publisher: Elsevier BV
Date: 09-2018
Characterising microplastics in shower wastewater with Raman imaging
Publisher: Elsevier BV
Date: 03-2022
DOI: 10.1016/J.SCITOTENV.2021.152409
Abstract: Microplastics can potentially be released in our daily activities, such as via our showers, as our clothes are made of plastic fibres, and/or cotton fibres. The challenge is how to characterise these microplastics in shower debris. Herewith we employ Raman imaging to directly visualise the microplastics collected from shower wastewater. Raman can map an image from the scanning array that contains a matrix of thousands of spectra, featuring a considerably higher signal-noise ratio than that from a single spectrum. The increased signal-noise ratio reduces the complexity of s le preparation. Consequently, after the shower debris was s led and washed, Raman imaging allowed us to distinguish the microplastic fibres from the background including cotton fibres and dirt aggregates. Interestingly, by adjusting the laser power intensity, the scanning process enabled simultaneous in-situ bleaching of the colorants formulated in the textile fibres and collection of signals. The disadvantage of Raman imaging such as the short focusing/working distance is also presented and discussed. Overall, the Raman imaging can extract meaningful information from the complex shower debris s les to enable analysis of microplastics.
Organoclay/thermotropic liquid crystalline polymer nanocomposites. Part I: Effects of concentration on morphology, liquid crystallinity and thermal properties
Publisher: Walter de Gruyter GmbH
Date: 12-2012
DOI: 10.1515/EPOLY.2012.12.1.84
Abstract: Thermotropic liquid crystalline polymer (TLCP) nanocomposites with different organoclay contents were prepared by a method combining ultrasonication, centrifugation and solution casting methods. The effects of organoclay concentration on morphology, liquid crystallinity and thermal properties of nanocomposites were characterized. Molecular level interactions existed in nanocomposites. With a small amount of organoclay (nominal 3.0 wt %), it was enough to change TLCP properties with enhanced thermal stability though with a small negative effect on liquid crystallinity. When high concentration organoclay was added, thermal stability decreased and liquid crystallinity lost with shearinduced phase separation occurrence.
Understanding vortex-induced vibration characteristics of a long flexible marine riser by a bidirectional fluid–structure coupling method
Publisher: Springer Science and Business Media LLC
Date: 24-07-2019
Introduction to Luminogenic bioprobes for personal health technologies
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1QM90061G
Abstract: Youhong Tang and Dan Ding introduce the Materials Chemistry Frontiers themed collection on luminogenic bioprobes for personal health technologies.
Chapter 5 Point-of-care in vitro diagnostics devices based on aggregation-induced emission biosensors: current situation and future prospective
Publisher: De Gruyter
Date: 21-03-2022
Vortex Fluidics‐mediated Fluorescent Hydrogels with Aggregation‐induced Emission Characteristics
Publisher: Wiley
Date: 15-04-2022
Fluorescence of Nonaromatic Organic Systems and Room Temperature Phosphorescence of Organic Luminogens: The Intrinsic Principle and Recent Progress
Publisher: Wiley
Date: 02-08-2018
Abstract: Following the development of photoluminescence systems with various compositions, some nontraditional structures, including nonaromatic organic systems as fluorophores and organic luminogens as the source of phosphorescence emission at room temperature, have attracted considerable attention for their advantages in biological and medical applications, and for the updated photophysical understandings in science. In this Review, the recent progress in understanding these organic compounds or polymers for fluorescence and phosphorescence is briefly summarized, with the aim of exploring the intrinsic principle of these novel photoluminescence systems and providing reasonable constructs for molecular design. Finally, some prospects are suggested for further development of this continually expanding area of research, with the coined concept of Molecular Uniting Set Identified Characteristic (MUSIC).
Experimental understanding of the viscosity reduction ability of TLCPs with different PEs
Publisher: Springer Science and Business Media LLC
Date: 08-2014
Design and Performance Evaluation of Polymer Matrix Composite Helical Springs
Publisher: MDPI AG
Date: 18-09-2022
Abstract: Helical springs are indispensable mechanical parts widely used in industry. Lightweight is one of the development trends of helical springs. In this study, three kinds of lightweight polymer matrix composite helical springs (PMCHSs) with unidirectional, multistrand, and wrapped textile structural reinforcement (PMCHS-U, PMCHS-M, and PMCHS-W) were designed, manufactured, and evaluated. The performance of these PMCHSs and the relationship between their performance and their corresponding polymer matrix composite spring wire rods (PMCRs) were studied through the torsion test of the PMCRs and the compression and resilience tests of the PMCHSs. The results showed that the performance of the PMCHSs could be effectively improved by using the wrapped structure as the reinforcement. The compression capacity of PMCHS-W was 72.6% and 137.5% higher than that of PMCHS-M and PMCHS-U, respectively. The resilience performance of the PMCHSs decreased with the increase in the spring constant. The performances of the PMCHSs and a steel spring were compared. The results showed that the spring constant of the steel spring could be achieved when the masses of PMCHS-U, PMCHS-M, and PMCHS-W were only 75%, 63%, and 49% of the mass of the steel spring, respectively. This research is of great significance to the improvement in lightweight spring performance.
Temperature effects on structural integrity of fiber-reinforced polymer matrix composites: A review
Publisher: Wiley
Date: 11-07-2019
DOI: 10.1002/APP.48206
Monitoring and quantification of the complex bioaccumulation process of mercury ion in algae by a novel aggregation-induced emission fluorogen
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA22190D
Abstract: In this study, a novel methodology was developed using a specified aggregation-induced emission fluorogen (AIEgen) to monitor and quantify the complex bioaccumulation process in a microcosm aquatic ecosystem.
Sponge‐Like Macroporous Hydrogel with Antibacterial and ROS Scavenging Capabilities for Diabetic Wound Regeneration
Publisher: Wiley
Date: 24-08-2022
Abstract: Hydrogels with soft and wet properties have been intensively investigated for chronic disease tissue repair. Nevertheless, tissue engineering hydrogels containing high water content are often simultaneously suffered from low porous size and low water‐resistant capacities, leading to undesirable surgery outcomes. Here, a novel sponge‐like macro‐porous hydrogel (SM‐hydrogel) with stable macro‐porous structures and anti‐swelling performances is developed via a facile, fast yet robust approach induced by Ti 3 C 2 MXene additives. The MXene‐induced SM‐hydrogels (80% water content) with 200–300 µm open macropores, demonstrating ideal mass/nutrient infiltration capability at ≈20‐fold higher water/blood‐transport velocity over that of the nonporous hydrogels. Moreover, the highly strong interactions between MXene and polymer chains endow the SM‐hydrogels with excellent anti‐swelling capability, promising equilibrium SM‐hydrogels with identical macro‐porous structures and toughened mechanical performances. The SM‐hydrogel with versatile functions such as facilitating mass transport, antibacterial (bacterial viability in (Acrylic acid‐co‐Methacrylamide dopamine) copolymer‐Ti 3 C 2 MXene below 25%), and reactive oxygen species scavenging capacities (96% scavenging ratio at 120 min) synergistically promotes diabetic wound healing (compared with non‐porous hydrogels the wound closure rate increased from 39% to 81% within 7 days). Therefore, the durable SM‐hydrogels exhibit connective macro‐porous structures and bears versatile functions induced by MXene, demonstrating its great potential for wound tissue engineering.
Konjac glucomannan/polyvinyl alcohol nanofibers with enhanced skin healing properties by improving fibrinogen adsorption
Publisher: Elsevier BV
Date: 05-2020
Interrogating amyloid aggregation with aggregation-induced emission fluorescence probes
Publisher: Elsevier BV
Date: 07-2022
DOI: 10.1016/J.BIOMATERIALS.2022.121605
Abstract: To date, approximately 50 proteins have been identified that can misfold and aggregate to form amyloid fibrils and cause neurodegenerative diseases such as Alzheimer disease, Parkinson disease and Huntington disease. The formation of the amyloid fibrils from the precursor proteins and how pre-fibrils and fibrils formation relate to disease have remained elusive. To assist our understanding of the amyloid fibrils, many molecular fluorescence probes, such as thioflavin-T, have been developed to help investigating area including pre-fibrils and fibrils detection, structures of amyloid aggregates, the staining of amyloid in vitro, ex vivo and in vivo. In this mini-review, we focus on amyloid studies involving the use of aggregation-induced emission (AIE) fluorescence probes that are non-emissive when molecularly dissolved but can be induced to emit intensely upon aggregation. The AIE property overcomes the disadvantage of the traditional fluorescence probes with aggregation-caused quenching effect. The design, properties, and application of AIE fluorescence probes on the amyloid fibril's detection, amyloid fibril's structure, and formation dynamics study, and use in investigating potential therapeutic interventions are discussed in this mini review.
Vortex fluidic enabling and significantly boosting light intensity of graphene oxide with aggregation induced emission luminogen
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0QM00270D
Abstract: We have discovered a novel and cost-effective approach to produce GO/aggregation-induced emission demonstrating high fluorescent performance.
Biomedical applications of luminogens: general discussion
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7FD90002C
Mechanical properties of a supramolecular nanocomposite hydrogel containing hydroxyl groups enriched hyper-branched polymers
Publisher: MDPI AG
Date: 06-03-2021
Abstract: Owing to highly tunable topology and functional groups, hyper-branched polymers are a potential candidate for toughening agents, for achieving supramolecular interactions with hydrogel networks. However, their toughening effects and mechanisms are not well understood. Here, by means of tensile and pure shear testings, we characterise the mechanics of a nanoparticle–hydrogel hybrid system that incorporates a hyper-branched polymer (HBP) with abundant hydroxyl end groups into the matrix of the polyacrylic acid (PAA) hydrogel. We found that the third and fourth generations of HBP are more effective than the second one in terms of strengthening and toughening effects. At a HBP content of 14 wt%, compared to that of the pure PAA hydrogel, strengths of the hybrid hydrogels with the third and fourth HBPs are 2.3 and 2.5 times toughnesses are increased by 525% and 820%. However, for the second generation, strength is little improved, and toughness is increased by 225%. It was found that the stiffness of the hybrid hydrogel is almost unchanged relative to that of the PAA hydrogel, evidencing the weak characteristic of hydrogen bonds in this system. In addition, an outstanding self-healing feature was observed, confirming the fast reforming nature of broken hydrogen bonds. For the hybrid hydrogel, the critical size of failure zone around the crack tip, where serious viscous dissipation occurs, is related to a fractocohesive length, being about 0.62 mm, one order of magnitude less than that of other tough double-network hydrogels. This study can promote the application of hyper-branched polymers in the rapid evolving field of hydrogels for improved performance.
Numerical Investigation of a Blade Riblet Surface for Drag Reduction Applications with Large Eddy Simulation Method
Publisher: Trans Tech Publications, Ltd.
Date: 06-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.187.315
Abstract: Fully developed turbulent channel flow with a blade riblet surface has been simulated numerically at Reynolds number by Large Eddy Simulations (LES). The blade riblet is shown to provide a total viscous drag reduction approximately 9% with the riblet spacing and the cross section . For the sake of investigating the interaction of the turbulent flow with riblets, the mean velocity profiles, velocity fluctuations, and instantaneous flow visualization have been analyzed. It has been found that the riblet of certain size reduces drag by d ing the dynamics and weakening the cross motions in the near-wall boundary layer, revealing beneficial turbulence controlling.
Hybrid hydrogels of porous graphene and nickel hydroxide as advanced supercapacitor materials
Publisher: Wiley
Date: 28-03-2013
Abstract: Graphene-based hydrogels can be used as supercapacitor electrodes because of their excellent conductivity, their large surface area and their high compatibility with electrolytes. Nevertheless, the large aspect ratio of graphene sheets limits the kinetics of processes occurring in the electrode of supercapacitors. In this study, we have introduced in-plane and out-of-plane pores into a graphene-nickel hydroxide (Ni(OH)2) hybrid hydrogel, which facilitates charge and ion transport in the electrode. Due to its optimised chemistry and architecture, the hybrid electrode demonstrates excellent electrochemical properties with a combination of high charge storage capacitance, fast rate capability and stable cycling performance. Remarkably, the Ni(OH)2 in the hybrid contributes a capacitance as high as 3138.5 F g(-1), which is comparable to its theoretical capacitance, suggesting that such structure facilitates effectively charge-transfer reactions in electrodes. This work provides a facile pathway for tailoring the porosity of graphene-based materials for improved performances. Moreover, this work has also furthered our understanding in the effect of pore and hydrogel structures on the electrochemical properties of materials.
Red fluorescent carbon dots for tetracycline antibiotics and pH discrimination from aggregation-induced emission mechanism
Publisher: Elsevier BV
Date: 04-2021
On the feasibility of a smartphone-based solution to rapid quantitative urinalysis using nanomaterial bioprobes
Publisher: ACM
Date: 07-11-2017
Shock absorption properties of synthetic sports surfaces: A review
Publisher: Wiley
Date: 15-08-2019
DOI: 10.1002/PAT.4739
Modulating the interactions between MgH2 and graphene using different dopants
Publisher: Elsevier BV
Date: 03-2015
Collecting microplastics in gardens: Case study (ii) from ropes
Publisher: Elsevier BV
Date: 05-2022
A two-in-one Janus NIR-II AIEgen with balanced absorption and emission for image-guided precision surgery
Publisher: Elsevier BV
Date: 03-2021
Assessment of microplastics and nanoplastics released from a chopping board using Raman imaging in combination with three algorithms
Publisher: Elsevier BV
Date: 06-2022
DOI: 10.1016/J.JHAZMAT.2022.128636
Abstract: As contaminants of emerging concern, microplastics and nanoplastics are ubiquitous in not only aquatic and terrestrial environments but also household settings. While the characterisation of microplastics is still a challenge, the analysis of nanoplastics is even more difficult. In this study, we aim to examine several novel algorithmic methods intended for analysing complex Raman spectrum matrices towards visualisation of plastic particles released from a chopping board. Specifically, we compare and advance three decoding algorithms, including (i) a logic-based algorithm to merge and cross-check multiple Raman images that map the intensities of several characteristic peaks (ii) a principal component analysis-based algorithm to generate intensity images from whole sets of spectra, not just from in idual characteristic peaks (iii) an algebra-based algorithm to merge and cross-check the loading matrix to enhance characterisation efficiency. Assisted with a scanning electron microscope, we estimate that 100-300 microplastics / nanoplastics per mm per cut along the groove formed on the chopping board, and ~3000 per mm
Dynamic mechanism of phase differences in One degree-of-freedom vortex-induced vibration of a cylindrical structure
Publisher: SAGE Publications
Date: 04-07-2017
Abstract: The purpose of this study is to provide some insights into the phase mechanism of a cylindrical vortex–induced vibration. A transient coupled fluid–structure interaction numerical model is adopted to simulate a cylindrical vortex–induced vibration. The vortex shedding around the cylinder is investigated numerically by a two-dimensional large eddy simulation approach which can catch more details of the flow field and more accuracy on computing hydrodynamic forces. The vortex shedding modes and response and hydrodynamic forces of a cylindrical vortex–induced vibration are acquired with varied frequency ratios. According to differences in the vortex shedding location, the vortex wake can be characterized by two kinds of mode, the “first mode” and the “second mode.” The mechanisms behind the phases of the first mode and the second mode vortex wakes are investigated, and it is found that the flow speed induced by a cylindrical transverse vibration and the position of a vortex release are the root causes of the phase difference between the lift coefficient and transverse displacement. The speeds caused by a cylinder vibration and a cylinder-shed vortex are the reasons that the lift litude of an oscillatory cylinder is different from that of a fixed cylinder.
The molecular understanding of interfacial interactions of functionalized graphene and chitosan
Publisher: Elsevier BV
Date: 2016
Effects of natural frequency ratio on vortex-induced vibration of a cylindrical structure
Publisher: Elsevier BV
Date: 03-2015
Live Imaging and Quantitation of Lipid Droplets and Mitochondrial Membrane Potential Changes with Aggregation-Induced Emission Luminogens in an in Vitro Model of Liver Steatosis
Publisher: Wiley
Date: 13-03-2019
Abstract: High specificity, low background, good biocompatibility and photostability are common properties of aggregation-induced emission luminogens (AIEgens). In this study, an AIEgen FAS was used in live HepG2 cells, an in vitro model of liver steatosis, to quantify lipid droplet number and size instead of the traditional method of only measuring fluorescence intensity emitted from fluorescence dye stained in lipid droplet. In parallel, another AIEgen, TPE-Ph-In, was used to perform continuous monitoring and quantitation of mitochondrial membrane potential in the same batch of live HepG2 cells. The data show a significant increase in lipid droplet numbers after 24 h treatment by amiodarone and a significant increase in both lipid droplet numbers and size after 48 h amiodarone treatment. Moreover, the data suggest a significant increase in mitochondria membrane potential in cells treated with amiodarone for 24 and 48 h, with restoration to pre-treatment level 24 h after removal of the amiodarone. Further investigation is needed to fully understand the underlying mechanism.
A Benchmark Quantum Yield for Water Photoreduction on Amorphous Carbon Nitride
Publisher: Wiley
Date: 14-08-2017
Honey/PVA hybrid wound dressings with controlled release of antibiotics: Structural, physico-mechanical and in-vitro biomedical studies
Publisher: Elsevier BV
Date: 08-2017
DOI: 10.1016/J.MSEC.2017.03.272
Abstract: Hydrogel/honey hybrids manifest an attractive design with an exclusive therapeutic property that promotes wound healing process. The greater the concentration of honey within the formulation, the better the biomedical properties that will be achieved. However, an increase in the percentage of honey can negatively affect the physico-chemical and mechanical properties of hybrid hydrogels. The need exists, therefore, to prepare wound dressings that contain high honey density with optimal biomedical, mechanical and physicochemical properties. In this study, a simple method for the preparation of a highly concentrated honey/PVA hybrid hydrogel with borax as the crosslinking agent is reported. Comprehensive evaluations of the morphology, swelling kinetics, permeability, bio-adhesion, mechanical characteristics, cytotoxicity, antibacterial property, cell proliferation ability and their controlling release properties were conducted as a function of crosslinking density. All the borax-induced hydrogels showed acceptable biocompatibility, and the incorporation of 1% borax in the hydrogel formulation produced optimal behaviours for wound addressing applications.
Eco-friendly and cost-effective superabsorbent sodium polyacrylate composites for environmental remediation
Publisher: Springer Science and Business Media LLC
Date: 03-06-2015
Aggregation‐Induced Emission: The Whole Is More Brilliant than the Parts
Publisher: Wiley
Date: 30-06-2014
Abstract: "United we stand, ided we fall."--Aesop. Aggregation-induced emission (AIE) refers to a photophysical phenomenon shown by a group of luminogenic materials that are non-emissive when they are dissolved in good solvents as molecules but become highly luminescent when they are clustered in poor solvents or solid state as aggregates. In this Review we summarize the recent progresses made in the area of AIE research. We conduct mechanistic analyses of the AIE processes, unify the restriction of intramolecular motions (RIM) as the main cause for the AIE effects, and derive RIM-based molecular engineering strategies for the design of new AIE luminogens (AIEgens). Typical ex les of the newly developed AIEgens and their high-tech applications as optoelectronic materials, chemical sensors and biomedical probes are presented and discussed.
Crosslinked carbon nanofiber films with hierarchical pores as flexible electrodes for high performance supercapacitors
Publisher: Elsevier BV
Date: 03-2018
Portable Colorimetric Device with Commercial Microplates for Quantitative Detection of Urine Biomarkers: Design, Development, and Clinical Evaluation
Publisher: MDPI AG
Date: 04-09-2022
DOI: 10.3390/BIOS12090723
Abstract: Urine biomarkers are important in monitoring diseases related to human kidney function. The current processes for measuring biomarker levels in urine s les require patients to regularly visit clinical facilities, which is inconvenient and sometimes impossible for patients in rural areas. Therefore, portable analysis devices for the measurement of urine biomarkers are urgently requested. In this study, a portable platform using colorimetry, a common and simple-to-operate chemical analysis technique, was developed to measure urine biomarkers. The device, using commercial test kits as recognising reagents and a 96-well microplate as a solution container, provides quantitative measures of biomarker concentration. Moreover, the proposed device introduces a calibration method to minimise the dependence of regular maintenance. The device’s performance was evaluated with urine from 73 renal patients and its results matched with clinical results well. The device has the potential for measuring urine creatinine, in addition to performing a variety of commercial assays for biomarker detection in human body fluids in general.
Related Organisations
Related Funding Activities
Joint Research Centre On Personal Health Technologies
Start Date: 2019
End Date: 2022
Funder: Department of Industry, Innovation and Science, Australian Government
View Funded ActivityInternational Laboratory For Health Technologies
Start Date: 2018
End Date: 2021
Funder: South Australian Research and Development Institute
View Funded ActivityIndustrial Transformation Training Centre (IC190100034)
Start Date: 2020
End Date: 2022
Funder: Australian Research Council
View Funded ActivityVice-Chancellor's Award For Early-Career Researcher
Start Date: 2012
End Date: 2012
Funder: Flinders University
View Funded ActivityIndustrial Transformation Training Centres - Grant ID: IC140100003
Start Date: 01-2015
End Date: 03-2020
Amount: $2,389,935.00
Funder: Australian Research Council
View Funded ActivityDiscovery Early Career Researcher Award - Grant ID: DE120102784
Start Date: 01-2012
End Date: 05-2015
Amount: $375,000.00
Funder: Australian Research Council
View Funded ActivityIndustrial Transformation Training Centres - Grant ID: IC190100034
Start Date: 12-2020
End Date: 12-2025
Amount: $3,574,272.00
Funder: Australian Research Council
View Funded ActivityLinkage Infrastructure, Equipment And Facilities - Grant ID: LE180100136
Start Date: 09-2018
End Date: 09-2019
Amount: $557,389.00
Funder: Australian Research Council
View Funded ActivityLinkage Infrastructure, Equipment And Facilities - Grant ID: LE140100082
Start Date: 07-2014
End Date: 11-2015
Amount: $500,000.00
Funder: Australian Research Council
View Funded ActivityLinkage Infrastructure, Equipment And Facilities - Grant ID: LE150100094
Start Date: 06-2015
End Date: 12-2018
Amount: $400,000.00
Funder: Australian Research Council
View Funded Activity