ORCID Profile
0000-0001-6219-3897
Current Organisation
Deakin University
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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)
Materials Engineering | Materials Engineering Not Elsewhere Classified | Artificial Intelligence and Image Processing | Manufacturing Engineering Not Elsewhere Classified | Polymers | Manufacturing Engineering | Functional Materials | Nanotechnology | Membrane and Separation Technologies | Control Engineering | Physical Metallurgy | Nanomanufacturing | Image Processing | Ceramics | Characterisation Of Macromolecules | Precision Engineering | Alloy Materials | Textile Technology | Structural Biology (incl. Macromolecular Modelling) | Nanotechnology | Polymers and Plastics | Mechanical Engineering | Microtechnology | Metals and Alloy Materials | Biomedical Engineering Not Elsewhere Classified | Flexible Manufacturing Systems | Mechanical Engineering | Medical And Health Sciences Not Elsewhere Classified | Interdisciplinary Engineering | Machining | Virtual Reality And Related Simulation | Neural Networks, Genetic Alogrithms And Fuzzy Logic | Simulation And Modelling | Main Group Metal Chemistry | Macromolecular and Materials Chemistry | Colloid and Surface Chemistry | Inorganic Chemistry | Biomechanical Engineering | Biotechnology Not Elsewhere Classified | Agricultural Biotechnology not elsewhere classified | Chemical Engineering | Nanotechnology not elsewhere classified | Fluidisation and Fluid Mechanics | Animal Production Not Elsewhere Classified | Automotive Engineering | Water Treatment Processes | Physical Sciences Not Elsewhere Classified
ANZSRC Socio-Economic Objective (SEO)
Other | Metals (composites, coatings, bonding, etc.) | Manufactured products not elsewhere classified | Synthetic fibres, yarns and fabrics | Sheep—wool | Ceramics | Plastics in primary forms | Sheet metal products | Expanding Knowledge in Technology | Polymeric materials (e.g. paints) | Scientific Instruments | Machinery and equipment not elsewhere classified | Aluminium | Application tools and system utilities | Other non-ferrous metals (e.g. copper,zinc) | Fibre processing and textiles; footwear and leather products | Appliances and electrical machinery and equipment | Other | Ceramics, glass and industrial mineral products not elsewhere classified | Environmentally Sustainable Energy Activities not elsewhere classified | Other fibre processing and textiles | Processed Food Products and Beverages (excl. Dairy Products) not elsewhere classified | Coated Metal and Metal-Coated Products | Plastic products (incl. Construction materials) | Primary Mining and Extraction of Mineral Resources not elsewhere classified | Scientific instrumentation | Castings | Industrial Energy Conservation and Efficiency | Industrial Instruments | Industrial Chemicals and Related Products not elsewhere classified |
Related Links
Publications
Variation of phloem turgor pressure in Hevea brasiliensis: An implication for latex yield and tapping system optimization
Publisher: Elsevier BV
Date: 07-2014
Hybrid graphene-decorated metal hollow fibre membrane reactors for efficient electro-Fenton - Filtration co-processes
Publisher: Elsevier BV
Date: 10-2019
Seeded growth of ZIF-8 on the surface of carbon nanotubes towards self-supporting gas separation membranes
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA11483J
Formulation of vanillin cross-linked chitosan nanoparticles and its characterization
Publisher: Trans Tech Publications, Ltd.
Date: 09-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.335-336.474
Abstract: Chitosan nanoparticles were successfully prepared by chemical cross-linking with vanillin. The nanoparticles were spherical in shape with smooth surface, and the average particle size of chitosan nanoparticles was 141 nm. The formulation of chitosan nanoparticles is based on Shiff reaction between aldehyde group of vanillin and amino group of chitosan. Chitosan nanoparticles prepared by crosslinking with vanillin are promising vehicle for the drug delivery of various anticancer drugs in the chemotherapy of cancers.
Nanoapplication of a Resistance Inducer to Reduce Phytophthora Disease in Pineapple (Ananas comosus L.)
Publisher: Frontiers Media SA
Date: 11-10-2019
Silver metal nano-matrixes as high efficiency and versatile catalytic reactors for environmental remediation
Publisher: Springer Science and Business Media LLC
Date: 23-03-2017
DOI: 10.1038/SREP45112
Abstract: Nano-porous metallic matrixes (NMMs) offer superior surface to volume ratios as well as enhanced optical, photonic, and electronic properties to bulk metallic materials. Such behaviours are correlated to the nano-scale inter-grain metal domains that favour the presence of electronic vacancies. In this work, continuous 3D NMMs were synthesized for the first time through a simple diffusion-reduction process whereby the aerogel matrix was functionalized with (3-Mercaptopropyl)trimethoxysilane. The surface energy of the silica monolith templates was tuned to improve the homogeneity of the reduction process while thiol functionalization facilitated the formation of a high density of seeding points for metal ions to reduce. The diameter of NMMs was between 2 and 1000 nm, corresponding to a silver loading between 1.23 and 41.16 at.%. A rates of catalytic degradation kinetics of these NMMS which is three orders of magnitude higher than those of the non-functionalized silver-silica structures. Furthermore, the enhancement in mechanical stability at nanoscale which was evaluated by Atomic Force Microscopy force measurements, electronic density and chemical inertness was assessed and critically correlated to their catalytic potential. This strategy opens up new avenues for design of complex architectures of either single or multi-metal alloy NMMs with enhanced surface properties for various applications.
Degradation of pyrene by immobilized microorganisms in saline-alkaline soil
Publisher: Elsevier BV
Date: 09-2012
DOI: 10.1016/S1001-0742(11)60963-7
Abstract: Biodegradation of polycyclic aromatic hydrocarbons (PAHs) is very difficult in saline-alkaline soil due to the inhibition of microbial growth under saline-alkaline stress. The microorganisms that can most effectively degrade PAHs were screened by introducing microorganisms immobilized on farm byproducts and assessing the validity of the immobilizing technique for PAHs degradation in pyrene-contaminated saline-alkaline soil. Among the microorganisms examined, it was found that Mycobacterium sp. B2 is the best, and can degrade 82.2% and 83.2% of pyrene for free and immobilized cells after 30 days of incubation. The immobilization technique could increase the degradation of pyrene significantly, especially for fungi. The degradation of pyrene by the immobilized microorganisms Mucor sp. F2, fungal consortium MF and co-cultures of MB+MF was increased by 161.7% (P < 0.05), 60.1% (P < 0.05) and 59.6% (P < 0.05) after 30 days, respectively, when compared with free F2, MF and MB+MF. Scanning electron micrographs of the immobilized microstructure proved the positive effects of the immobilized microbial technique on pyrene remediation in saline-alkaline soil, as the interspace of the carrier material structure was relatively large, providing enough space for cell growth. Co-cultures of different bacterial and fungal species showed different abilities to degrade PAHs. The present study suggests that Mycobacterium sp. B2 can be employed for in situ bioremediation of PAHs in saline-alkaline soil, and immobilization of fungi on farm byproducts and nutrients as carriers will enhance fungus PAH-degradation ability in saline-alkaline soil.
Development and evaluation of novel flavour microcapsules containing vanilla oil using complex coacervation approach
Publisher: Elsevier BV
Date: 02-2014
DOI: 10.1016/J.FOODCHEM.2013.08.074
Abstract: A novel flavour microcapsule containing vanilla oil (VO) was developed using complex coacervation approach, aimed to control release of VO and enhance its thermostability for spice application in food industry. Viscosity of chitosan (CS) and VO/CS ratio were optimised for fabrication of microcapsules. The flavour microcapsules were evaluated by scanning electron micrograph (SEM), laser confocal microscopy (LSCM), particle size analyser, infrared spectrometer (FT-IR), thermal analysis and controlled-release analysis. The microcapsules were in spherical with good dispersibility when moderate viscosity CS was used. 94.2% of encapsulation efficiency was achieved in VO/CS ratio of 2:1. The FT-IR study proved chemical cross-linking reaction occurred between genipin and chitosan, but a physical interaction between CS and VO. A core-shell structure of microcapsule was confirmed by LSCM, which was beneficial to improve the thermostability of VO in microcapsule. Moreover, VO could be remained about 60% in the microcapsules after release for 30 days, which demonstrated the flavour microcapsules had good potential to serve as a high quality food spice with long residual action and high thermostability.
Atomic interaction of functionalized carbon nanotube-based nanofluids with a heating surface and its effect on heat transfer
Publisher: Elsevier BV
Date: 09-2012
Thermal degradation kinetics and morphology of natural rubber/silica nanocomposites
Publisher: American Scientific Publishers
Date: 02-2006
DOI: 10.1166/JNN.2006.114
Abstract: A novel natural rubber/silica (NR/SiO2) nanocomposite with a SiO2 loading of 4 wt% is developed by incorporating latex compounding with self-assembly techniques. The SiO2 nanoparticles are homogenously distributed throughout the NR matrix as spherical nano-clusters with an average size of 75 nm. In comparison with the host NR, the thermal resistance of the nanocomposite is significantly improved. The degradation temperatures (T), reaction activation energy (E), and reaction order (n) of the nanocomposite are markedly higher than those of the pure NR, due to significant retardant effect of the SiO2 nanoparticles.
Characterization of carbon nanotube webs and yarns with small angle X-ray scattering: Revealing the yarn twist and inter-nanotube interactions and alignment
Publisher: Elsevier BV
Date: 11-2013
Feature extraction for animal fiber identification
Publisher: SPIE
Date: 26-07-2002
DOI: 10.1117/12.477055
Integrated fluid-thermal-structural numerical analysis for the quenching of metallic components
Publisher: Springer Science and Business Media LLC
Date: 04-2011
Promoted water transport across graphene oxide-poly(amide) thin film composite membranes and their antibacterial activity
Publisher: Elsevier BV
Date: 06-2015
The control of epidermal growth factor grafted on mesoporous silica nanoparticles for targeted delivery
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TB00790A
Abstract: ToF-SIMS was successfully applied to characterize and quantify the EGF grafted on hollow mesoporous silica nanoparticles.
A New Insight into Growth Mechanism and Kinetics of Mesoporous Silica Nanoparticles by in Situ Small Angle X-ray Scattering
Publisher: American Chemical Society (ACS)
Date: 22-07-2015
DOI: 10.1021/ACS.LANGMUIR.5B01637
Abstract: The growth mechanism and kinetics of mesoporous silica nanoparticles (MSNs) were investigated for the first time by using a synchrotron time-resolved small-angle X-ray scattering (SAXS) analysis. The synchrotron SAXS offers unsurpassed time resolution and the ability to detect structural changes of nanometer sized objects, which are beneficial for the understanding of the growth mechanism of small MSNs (∼20 nm). The Porod invariant was used to quantify the conversion of tetraethyl orthosilicate (TEOS) in silica during MSN formation, and the growth kinetics were investigated at different solution pH and temperature through calculating the scattering invariant as a function of reaction time. The growth of MSNs was found to be accelerated at high temperature and high pH, resulting in a higher rate of silica formation. Modeling SAXS data of micelles, where a well-defined electrostatic interaction is assumed, determines the size and shape of hexadecyltrimethylammonium bromide (CTAB) micelles before and after the addition of TEOS. The results suggested that the micelle size increases and the micelle shape changes from ellipsoid to spherical, which might be attributed to the solubilization of TEOS in the hydrophobic core of CTAB micelles. A new "swelling-shrinking" mechanism is proposed. The mechanism provides new insights into understanding MSN growth for the formation of functional mesoporous materials exhibiting controlled morphologies. The SAXS analyses were correlated to the structure of CTAB micelles and chemical reaction of TEOS. This study has provided critical information to an understanding of the growth kinetics and mechanism of MSNs.
Impact of the De-Alloying Kinetics and Alloy Microstructure on the Final Morphology of De-Alloyed Meso-Porous Metal Films
Publisher: MDPI AG
Date: 17-10-2014
DOI: 10.3390/NANO4040856
Targeted delivery of 5-fluorouracil to HT-29 cells using high efficient folic acid-conjugated nanoparticles
Publisher: Informa UK Limited
Date: 17-01-2015
DOI: 10.3109/10717544.2013.875603
Abstract: The incorporation of a high percentage of targeting molecules into drug delivery system is one of the important methods for improving efficacy of targeting therapeutic drugs to cancer cells. PLGA-based drug delivery carriers with folic acid (FA) as targeting molecule have a low targeting efficiency due to a low FA conjugation ratio. In this work, we fabricated a FA-conjugated PLGA system using a crosslinker 1, 3-diaminopropane and have achieved a high conjugation ratio of 46.7% (mol/mol). The as-prepared PLGA-based biomaterial was used to encapsulate therapeutic drug 5-fluorouracil (5-FU) into nanoparticles. In the in vitro experiments, an IC₅₀ of 5.69 µg/mL has been achieved for 5-FU loaded PLGA-1, 3-diaminopropane-folic acid nanoparticles on HT-29 cancer cells and is significantly lower than that of 5-FU and 5-FU loaded PLGA nanoparticles which only have an IC₅₀ of 22.9 and 14.17 µg/mL, respectively. The fluorescent microscopy images showed that nanoparticles with FA are largely taken up by HT-29 cancer cells and the targeting nanoparticles have more affinity to cancer cells than the pure drugs and untreated nanoparticles. Therefore, the 1, 3-diaminopropane can facilitate the conjugation of FA to PLGA to form a novel polymer and 5-FU loaded PLGA-1, 3-diaminopropane-folic acid nanoparticles can be a highly efficient system for specific delivery of drugs to cancer cells.
Effects of a volatile solvent with low surface tension combining with the silica network reinforcement on retention of LLC structure in polymer matrix
Publisher: Springer Science and Business Media LLC
Date: 10-05-2018
Facile Preparation of Macromolecular Prodrugs for Hypoxia-Specific Chemotherapy
Publisher: American Chemical Society (ACS)
Date: 03-11-2020
DOI: 10.1021/ACSMACROLETT.0C00759
Abstract: Hypoxia-activated prodrugs (HAPs) have emerged as important candidates for chemotherapy due to their efficient killing of hypoxic cancer cells. Traditional small molecule agents, such as tirapazamine (TPZ) and its derivatives, have shown unsatisfactory therapeutic effect in clinical trials due to poor bioavailability in hypoxic tumor regions. Herein, an hiphilic macromolecular prodrug with hypoxia-specific activity, named as hypoxia-activated macromolecular prodrug (HAMP), is prepared from poly{[poly(ethylene glycol) methacrylate]-
Functional Nanoporous Titanium Dioxide for Separation Applications: Synthesis Routes and Properties to Performance Analysis
Publisher: Springer International Publishing
Date: 29-05-2019
Zwitterionic Block Copolymer Prodrug Micelles for pH Responsive Drug Delivery and Hypoxia-Specific Chemotherapy
Publisher: American Chemical Society (ACS)
Date: 02-09-2022
DOI: 10.1021/ACS.MOLPHARMACEUT.1C00518
Abstract: Tirapazamine (TPZ) and its derivatives (TPZD) have shown their great potential for efficiently killing hypoxic cancer cells. However, unsatisfactory clinical outcomes resulting from the low bioavailability of the low-molecular TPZ and TPZD limited their further applications. Precise delivery and release of these prodrugs via functional nanocarriers can significantly improve the therapeutic effects due to the targeted drug delivery and enhanced permeability and retention (EPR) effect. Herein, zwitterionic block copolymer (BCP) micelles with aldehyde functional groups are prepared from the self-assembly of poly(2-methacryloyloxyethyl phosphorylcholine-
The effect of concentrations and properties of phenanthrene, pyrene, and benzo(a)pyrene on desorption in contaminated soil aged for 1 year
Publisher: Springer Science and Business Media LLC
Date: 05-12-2013
Amplification of SPPS150 and Salmonella typhi DNA with a high throughput oscillating flow polymerase chain reaction device
Publisher: AIP Publishing
Date: 03-05-2010
DOI: 10.1063/1.3422524
Abstract: In this paper, a novel oscillating flow polymerase chain reaction (PCR) device was designed and fabricated to lify SPPS150 and salmonella typhi. In this new design, the s les are shuttled (oscillating flow) inside a microfluidic chip to three different temperature zones required for DNA lification. The lification cycle time has markedly been reduced as the reagent volume used was only about 25% of that used in conventional PCRs. Bubble formation and adsorption issues commonly associated to chip based PCR were also eliminated. Based on the performance evaluated, it is demonstrated that this oscillating flow PCR has the advantages of both the stationary chamber and continuous flow PCR devices.
Rapid multi sample DNA amplification using rotary-linear polymerase chain reaction device (PCRDisc)
Publisher: AIP Publishing
Date: 03-2012
DOI: 10.1063/1.3690469
Abstract: Multiple s le DNA lification was done by using a novel rotary-linear motion polymerase chain reaction (PCR) device. A simple compact disc was used to create the stationary s le chambers which are in idually temperature controlled. The PCR was performed by shuttling the s les to different temperature zones by using a combined rotary-linear movement of the disc. The device was successfully used to lify up to 12 s les in less than 30 min with a s le volume of 5 μl. A simple spring loaded heater mechanism was introduced to enable good thermal contact between the s les and the heaters. Each of the heater temperatures are controlled by using a simple proportional–integral–derivative pulse width modulation control system. The results show a good improvement in the lification rate and duration of the s les. The reagent volume used was reduced to nearly 25% of that used in conventional method.
Meltblown fabric vs nanofiber membrane, which is better for fabricating personal protective equipments
Publisher: Elsevier BV
Date: 08-2020
Nanoscale 2D semi-conductors – Impact of structural properties on light propagation depth and photocatalytic performance
Publisher: Elsevier BV
Date: 03-2021
Synthesis of nitrogen-doped carbon nanotubes-FePO4 composite from phosphate residue and its application as effective Fenton-like catalyst for dye degradation
Publisher: Elsevier BV
Date: 02-2019
DOI: 10.1016/J.JES.2018.04.024
Abstract: Phosphate residue is regarded as a hazardous waste, which could potentially create significant environmental and health problems if it is not properly treated and disposed of. In this study, nitrogen-doped carbon nanotubes-FePO
Lab-on-Chip Devices for Immunoassays
Publisher: Springer US
Date: 2008
Image processing and pattern recognition in textiles
Publisher: SPIE
Date: 20-09-2001
DOI: 10.1117/12.441547
Review on Sperm Sorting Technologies and Sperm Properties toward New Separation Methods via the Interface of Biochemistry and Material Science
Publisher: Wiley
Date: 14-08-2019
Rational design for enhancing mechanical and conductive properties of Ti3C2 MXene based elastomer composites
Publisher: Elsevier BV
Date: 06-2021
Growth of nano-textured graphene coatings across highly porous stainless steel supports towards corrosion resistant coatings
Publisher: Elsevier BV
Date: 06-2016
Synthesis of Mn3O4 nano-materials via CTAB/SDS vesicle templating for high performance supercapacitors
Publisher: Elsevier BV
Date: 2018
Modelling the effect of carbon content on hot strength of steels using a modified artificial neural network
Publisher: Iron and Steel Institute of Japan
Date: 1998
Delivery of Abscisic Acid to Plants Using Glutathione Responsive Mesoporous Silica Nanoparticles
Publisher: American Scientific Publishers
Date: 03-2018
Abstract: An intracellular glutathione (GSH) responsive phytochemical delivery system based on thiol gated mesoporous silica nanoparticles (MSNs) was developed and tested on the model plant Arabidopsis thaliana. In the present study, monodispersed MSNs with particle diameters of ~20 nm and pore sizes of ~2.87 nm were synthesized and modified. Abscisic acid (ABA), a key phytohormone, was entrapped in the mesopores of MSNs and then the pore entrances of MSNs were covered with decanethiol gatekeepers through GSH-cleavable disulfide linkages. An in vitro release test of ABA from decanethiol gated MSNs proved that there was efficient loading and entrapment of phytochemicals in the absence of a GSH redox trigger. Most importantly, in planta experiments demonstrated that GSH-mediated release of ABA from the pores of MSNs significantly reduced the leaf stomatal aperture and inhibited water loss of treated plants. Moreover, compared with the usage of free ABA, the controlled release of the encapsulated phytohormone from MSNs markedly prolonged the expression of the ABA inducible marker gene (AtGALK2) and finally, improved the drought resistance ability of Arabidopsis seedlings under drought stress. Therefore, the concept of using short-chain molecules as gatekeepers to encapsulate biomolecules in MSNs was demonstrated. The application of MSNs with redox-responsive gatekeepers has been shown in this study to be a potential and efficient technique to deliver phytochemicals into plants and release them in a controllable fashion.
Effect of magnetic treatment on microstructure and cycle performance of LiFePO4/C cathode material
Publisher: Elsevier BV
Date: 12-2014
Finite element analysis of fluid behaviour under micro surface waves - art. no. 60360H
Publisher: SPIE
Date: 28-12-2006
DOI: 10.1117/12.638365
Lab-on-Chip Devices for Biodefense Applications
Publisher: Springer US
Date: 2008
Dual-Cross-Linked Network Hydrogels with Multiresponsive, Self-Healing, and Shear Strengthening Properties (vol 22, pg 800, 2021)
Publisher: American Chemical Society (ACS)
Date: 04-2021
Enhanced pollutant photodegradation over nanoporous titanium-vanadium oxides with improved interfacial interactions
Publisher: Elsevier BV
Date: 09-2023
Preparation of Catalyst by Phosphating Slag and Its Photocatalytic Performance on Rhodamine B and Methyl Orange
Publisher: IOP Publishing
Date: 19-03-2019
Superior Performance of Aptamer in Tumor Penetration over Antibody: Implication of Aptamer-Based Theranostics in Solid Tumors
Publisher: Ivyspring International Publisher
Date: 2015
DOI: 10.7150/THNO.11711
KINETIC MODEL FOR THERMAL DEHYDRO CHLORINATION OF CHLORINATED NATURAL RUBBER WITH DIFFERENT CHLORINE CONTENT
Publisher: Rubber Division, ACS
Date: 06-2014
DOI: 10.5254/RCT.13.86940
Abstract: A novel model for calculating dehydrochlorination kinetics at a lower temperature of chlorinated natural rubber (CNR) is presented. It has been observed that dehydrochlorination is complex and involves three different stages. A model that accounts for dehydrochlorination at lower temperature is proposed. The kinetic parameters are obtained from dehydrochlorination experiments at 60–90 °C. The results of the kinetic calculation show that the apparent activation energy decreases with an increment of chlorine content. Higher chlorine content CNR makes it easier to remove hydrochloric acid when heated, but its dehydrochlorination rate affected by temperature is significantly less than that of the s le with a lower chlorine content. The thermogravimetric/derivative thermogravimetry results show that the beginning temperature of thermo-oxidative degradation rises with the increment of chlorine content. During the heating process, the higher chlorine content CNR is more stable than the lower one. The results suggest the storage conditions and basis for selection of appropriate temperature for the preparation of CNR from latex.
Gas flow enhanced mass transfer in vacuum membrane distillation
Publisher: Elsevier BV
Date: 04-2023
Alternating heat transfer between objects of large geometrical difference
Publisher: Elsevier BV
Date: 11-2007
Graphene networks and their influence on free-volume properties of graphene-epoxidized natural rubber composites with a segregated structure: rheological and positron annihilation studies
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CP00465A
Abstract: The motion of ENR chains is retarded by the geometric confinement of “GE networks”, producing a high-density interfacial region in the vicinity of GE nanoplatelets.
Thermal degradation kinetics and mechanism of epoxidized natural rubber
Publisher: Walter de Gruyter GmbH
Date: 07-2013
DOI: 10.1515/POLYENG-2013-0040
Abstract: Thermal resistance is one of the most dominative properties for polymer materials. Thermal degradation mechanisms of epoxidized natural rubber (ENR) and NR are studied by thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The results show that, the introduction of epoxy groups into the NR molecular main chain leads to a remarkable change in the degradation mechanism. The thermal stability of ENR is worse than that of NR. For the first thermooxidative degradation stage, the thermal decomposition mechanism of ENR is similar to that of NR, which corresponds to a mechanism involving one-dimensional diffusion. For the second stage, the thermal decomposition mechanism of ENR is a three-dimensional diffusion, which is more complex than that of NR. Kinetic analysis showed that activation energy ( E α ), activation entropy (Δ H ) and activation Gibbs energy (Δ G ) values are all positive, indicating that the thermooxidative degradation process of ENR is non-spontaneous.
Computational simulation of gas flow and heat transfer near an immersed object in fluidized beds
Publisher: Elsevier BV
Date: 11-2007
One-pot synthesized mesoporous Ni-Co hydroxide for high performance supercapacitors
Publisher: Springer Science and Business Media LLC
Date: 20-12-2017
Constitutive modeling of drawing and extrusion with cyclic torsion
Publisher: Trans Tech Publications, Ltd.
Date: 2003
Dry-spun carbon nanotube ultrafiltration membranes tailored by anti-viral metal oxide coatings for human coronavirus 229E capture in water
Publisher: Elsevier BV
Date: 06-2023
Non-Isothermal Crystallization Kinetics of Polyvinyl Alcohol-Graphene Oxide Composites
Publisher: Trans Tech Publications, Ltd.
Date: 11-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.446-447.206
Abstract: Polyvinlyl alcohol (PVA)/graphene oxide (GO) composites are prepared by solution blending method. And the non-isothermal crystallization kinetics of as-prepared composites is evaluated by differential scanning calorimetry (DSC). The results indicate the graphene oxide can significantly modify the non-isothermal crystallization behavior of the PVA, for instance improved crystallization temperature and prolonged crystallization time. Enhanced crystallization temperature illustrates that GO can act as effective nucleating agent. However, prolonged crystallization time means that GO can retard the whole crystallization. Further kinetics analysis indicates that both the crystallization kinetics of neat PVA and PVA/GO match the Mo model very well. According to the Mo model, during the whole crystallization process, graphene oxide perform as a retardant. In conclusion, graphene oxide can act as effective nucleating agent due to strong interaction bewteen graphene oxide and PVA matrix. On the other hand, graphene oxide loaded may lead to other side effects. This side effects may lead to the retarded crystallization speed finally.
Simultaneous Incorporation of 5-Fluorouracil and Leucovorin into Chitosan Nanoparticle as Drug Carrier and Its Characterization
Publisher: Trans Tech Publications, Ltd.
Date: 06-2010
DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.654-656.2265
Abstract: A combined drug loaded system containing two most common anti-cancer drugs 5-fluorouracil (5-FU) and leucovorin (LV) was designed and prepared by ion crosslinking technology. The resulted nanoparticles are spherical in shape, and the particle size becomes larger when drug combination are loaded. Efficient drug encapsulation efficiency (EE) and drug loading (LC) are obtained due to the strong interaction between drugs and polymer. The combined drugs are distributed in the particles in amorpholous state which are demonstrated by the XRD results.
Nanostructures Generated from Photopolymerization of Poly(ethylene glycol) Diacrylate Templated from Hexagonal Lyotropic Liquid Crystals
Publisher: Wiley
Date: 12-2011
DOI: 10.1002/APP.33397
Design and simulation of an ultrasonic transducer - art. no. 60351N
Publisher: SPIE
Date: 28-12-2006
DOI: 10.1117/12.638357
Overcoming acquired drug resistance in colorectal cancer cells by targeted delivery of 5-FU with EGF grafted hollow mesoporous silica nanoparticles
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5NR03527A
Abstract: Acquired drug resistance (ADR) can be developed in colorectal cancer cells after 5-fluorouracil (5-FU) treatment and diminish the effectiveness of chemotherapy. In this work, acquired 5-FU resistance in the colorectal cancer cell line SW480 was obtained with the up-regulation of dihydropyrimidine dehydrogenase (DPYD) gene expression which can convert 5-FU to its inactive metabolite. To overcome ADR in colorectal cancer, hollow mesoporous silica nanoparticles (HMSNs) grafted with epidermal growth factor (EGF) were used as nanocarriers to deliver 5-FU to colorectal cancer cells with acquired drug resistance. The effect and mechanism of 5-FU loaded EGF grafted HMSNs (EGF-HMSNs-5-FU) in overcoming acquired drug resistance in SW480/ADR cells were studied. The EGF-HMSNs were demonstrated to be specifically internalized in EGFR overexpressed SW480/ADR cells via a receptor-mediated endocytosis and can escape from endo-lysosomes. The EGF-HMSNs-5-FU exhibited much higher cytotoxicity on SW480/ADR cells than HMSNs-5-FU and free 5-FU while the plain HMSNs did not show significant cytotoxicity. The mechanism of EGF-HMSNs-5-FU in overcoming drug resistance in SW480/ADR cells could be attributed to the specific internalization of EGF-HMSNs-5-FU in EGFR overexpressed cells which can lead to high intracellular drug accumulation and cause cell death through S phase arrest.
Electrocatalytic ultrafiltration membrane reactors designed from dry-spun self-standing carbon nanotube sheets
Publisher: Elsevier BV
Date: 02-2023
Development of an Ann Model Strategy to Improve the Prediction of Flow Strength of Austenitic Steels
Publisher: Civil-Comp Press
Date: 1998
DOI: 10.4203/CCP.53.4.2
Preparation and characterization of novel chitosan-based microcapsule containing patchouli oil
Publisher: American Scientific Publishers
Date: 08-2013
Isothermal crystallisation behaviour and kinetics of polyvinylalcohol/silica nanocomposite
Publisher: Elsevier BV
Date: 09-2005
A novel approach to determining piezoelectric properties of nanogenerators based on PVDF nanofibers using iterative finite element simulation for walking energy harvesting
Publisher: SAGE Publications
Date: 28-05-2020
Abstract: This study presents the experimental characterization and finite element investigation of a piezoelectric nanogenerator based on electrospun poly(vinylidene difluoride) (PVDF) nanofibers walking energy harvesting applications. The piezoelectric response of nanogenerator device was experimentally evaluated under low frequency cyclic impacts using PiezoTester. The impact test was then simulated and the obtained experimental applied force-time curve is implemented into the finite element model as the impactor external force. Based on mentioned procedure, a novel iterative finite element simulation was then introduced to determine the piezoelectric properties of PVDF nanofibers to avoid any redundant experiments. The experimental voltage-time was compared with voltage time obtained from optimized finite element model and a reasonable agreement was achieved between the numerical and experimental curves. Thereinafter, as a case study, a PVDF nanofibers nanogenerator integrated foam (PNIF) was simulated to use as an energy harvester in the shoe insole. The validated finite element model was then constructed to optimize the PNIF elasticity modulus to reach the maximum efficiency of energy harvester during human walking. The results showed that the best efficiency of the energy harvesting is achieved for 211.27 kPa PNIF modulus, which can generate 15.1 V. These results lead to the establishment of engineering design rules in the industrial scale for wearable power harvesting devices in the footwear industry.
Toward the Fabrication of Advanced Nanofiltration Membranes by Controlling Morphologies and Mesochannel Orientations of Hexagonal Lyotropic Liquid Crystals
Publisher: MDPI AG
Date: 21-07-2017
Transport properties of multi-layer fabric based on electrospun nanofiber mats as a breathable barrier textile material
Publisher: SAGE Publications
Date: 14-09-2012
Abstract: Layered fabric systems with an electrospun nanofiber web layered onto a sandwich of woven fabric were developed to examine the feasibility of developing breathable barrier textile materials. Some parameters of nanofiber mats, including the time of electrospinning and the polymer solution concentration, were designed to change and barrier properties of specimens were compared. Air permeability, water vapor transmission, and water repellency (Bundesmann and hydrostatic pressure tests) were assessed as indications of comfort and barrier performance of different s les. These performances of layered nanofiber fabrics were compared with a well-known water repellent breathable multi-layered fabric (Gortex). Multi-layered electrospun nanofiber mats equipped fabric (MENMEF) showed better performance in windproof property than Gortex fabric. Also, water vapor permeability of MENMEF was in a range of normal woven sport and work clothing. Comparisons of barrier properties of MENMEF and the currently available PTFE coated materials showed that, those properties could be achieved by layered fabric systems with electrospun nanofiber mats.
Stimuli-responsive heterojunctions based photo-electrocatalytic membrane reactors for reactive filtration of persistent organic pollutants
Publisher: Elsevier BV
Date: 2023
Calculation of effective pore diameters in porous filtration membranes with image analysis
Publisher: Elsevier BV
Date: 06-2008
Sparse representation of local spatial-temporal features with dimensionality reduction for motion recognition
Publisher: Elsevier BV
Date: 09-2013
Functionalized Mesoporous Silica Nanoparticles with Redox-Responsive Short-Chain Gatekeepers for Agrochemical Delivery
Publisher: American Chemical Society (ACS)
Date: 05-2015
Abstract: The controlled release of salicylic acid (SA), a key phytohormone, was mediated by using a novel decanethiol gatekeeper system grafted onto mesoporous silica nanoparticles (MSNs). The decanethiol was conjugated only to the external surfaces of the MSNs through glutathione (GSH)-cleavable disulfide linkages and the introduction of a process to assemble gatekeepers only on the outer surface so that the mesopore area can be maintained for high cargo loading. Raman and nitrogen sorption isotherm analyses confirmed the successful linkage of decanethiol to the surface of MSNs. The in vitro release of SA from decanethiol gated MSNs indicated that the release rate of SA in an environment with a certain amount of GSH was significantly higher than that without GSH. More importantly, in planta experiments showed the release of SA from decanethiol gated MSNs by GSH induced sustained expression of the plant defense gene PR-1 up to 7 days after introduction, while free SA caused an early peak in PR-1 expression which steadily decreased after 3 days. This study demonstrates the redox-responsive release of a phytohormone in vitro and also indicates the potential use of MSNs in planta as a controlled agrochemical delivery system.
Simultaneous polymerization and crosslinking for the synthesis of molecular-level graphene oxide-polyacryl amide-CeOx composites
Publisher: Elsevier BV
Date: 03-2015
Prediction of stress-strain behaviors in steels using an integrated constitutive, FEM and ANN model
Publisher: Iron and Steel Institute of Japan
Date: 2001
Constructing conductive titanium carbide nanosheet (MXene) network on polyurethane/polyacrylonitrile fibre framework for flexible strain sensor
Publisher: Elsevier BV
Date: 02-2021
Deriving site-specific water quality criteria for ammonia from national versus international toxicity data
Publisher: Elsevier BV
Date: 04-2019
DOI: 10.1016/J.ECOENV.2018.12.078
Abstract: A key question to be asked when developing regional water quality criteria with scarce toxicity data is whether such data need to be locally derived. To address this, ammonia toxicity data from local aquatic species in the Liao River were compared against data from species native and non-native to China, based on comparisons of the overall trends of species sensitivity distributions and derived water quality criteria. Liao River data were acquired by acute and chronic tests using five local freshwater invertebrate species, and then compiled alongside published data from Chinese national guidelines and international literature. Models of best fit using three species sensitivity distribution approaches (log-logistic, log-normal, and Burr III) did not vary markedly (r
Improved efficacy and reduced toxicity of doxorubicin encapsulated in sulfatide-containing nanoliposome in a glioma model
Publisher: Public Library of Science (PLoS)
Date: 29-07-2014
Hybrid thin film nano-composite membrane reactors for simultaneous separation and degradation of pesticides
Publisher: Elsevier BV
Date: 04-2017
Aptamer-mediated survivin RNAi enables 5-fluorouracil to eliminate colorectal cancer stem cells
Publisher: Springer Science and Business Media LLC
Date: 19-07-2017
DOI: 10.1038/S41598-017-05859-Z
Abstract: The development of chemoresistance and inability in elimination of cancer stem cells are among the key limitations of cancer chemotherapy. Novel molecular therapeutic strategies able to overcome such limitations are urgently needed for future effective management of cancer. In this report, we show that EpCAM-aptamer-guided survivin RNAi effectively downregulated survivin both in colorectal cancer cells in vitro and in a mouse xenograft model for colorectal cancer. When combined with the conventional chemotherapeutic agents, the aptamer-guided survivin RNAi was able to enhance the sensitivity towards 5-FU or oxaliplatin in colorectal cancer stem cells, increase apoptosis, inhibit tumour growth and improve the overall survival of mice bearing xenograft colorectal cancer. Our results indicate that survivin is one of the key players responsible for the innate chemoresistance of colorectal cancer stem cells. Thus, aptamer-mediated targeting of survivin in cancer stem cells in combination with chemotherapeutic drugs constitutes a new avenue to improve treatment outcome in oncologic clinics.
Electro-capture of heavy metal ions with carbon cloth integrated microfluidic devices
Publisher: Elsevier BV
Date: 04-2018
Concept design of a novel tactile probe tip for down scaled 3D CMMs - art. no. 60370Q
Publisher: SPIE
Date: 28-12-2006
DOI: 10.1117/12.638223
Fabrication of integrated optic fibre tip for micron CMMs touch trigger probe application - art. no. 603505
Publisher: SPIE
Date: 28-12-2006
DOI: 10.1117/12.638220
Functional Nanofibrous Biomaterials of Tailored Structures for Drug Delivery—A Critical Review
Publisher: MDPI AG
Date: 08-06-2020
DOI: 10.3390/PHARMACEUTICS12060522
Abstract: Nanofibrous biomaterials have huge potential for drug delivery, due to their structural features and functions that are similar to the native extracellular matrix (ECM). A wide range of natural and polymeric materials can be employed to produce nanofibrous biomaterials. This review introduces the major natural and synthetic biomaterials for production of nanofibers that are biocompatible and biodegradable. Different technologies and their corresponding advantages and disadvantages for manufacturing nanofibrous biomaterials for drug delivery were also reported. The morphologies and structures of nanofibers can be tailor-designed and processed by carefully selecting suitable biomaterials and fabrication methods, while the functionality of nanofibrous biomaterials can be improved by modifying the surface. The loading and releasing of drug molecules, which play a significant role in the effectiveness of drug delivery, are also surveyed. This review provides insight into the fabrication of functional polymeric nanofibers for drug delivery.
Flexible hybrid structure piezoelectric nanogenerator based on ZnO nanorod/PVDF nanofibers with improved output
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8RA10315A
Abstract: A novel hybrid piezoelectric structure based on electrospun PVDF NFs and vertically grown ZnO nanorods is presented as a promising nanogenerator to convert mechanical movement more efficiently into electricity for practical applications.
An advanced virtual program in engineering education for research and teaching excellence
Publisher: SAGE Publications
Date: 04-2007
DOI: 10.7227/IJMEE.35.2.5
Abstract: In this paper, an advanced virtual program in engineering education developed at the University of South Australia for both on-c us and offshore students is described. This extensive training program is based on a comprehensive online tutorial and comprises both face-to-face and online learning. The program provides a tailored evaluation format to ensure that all postgraduate students, including those doing coursework and research, will have appropriate exposure to updated learning skills and research resources. Although the internet is the primary resource used in this educational program, other resources, such as videoconferencing, video-taping and face-to-face lecturing, have also played a role in promoting engineering teaching and research excellence. The feedback from students in recent years has been very encouraging, and students have shown increased information literacy skills and improved researching abilities. As off-c us class numbers have increased, further development of the program to meet their requirements has been a priority.
Preparation of Porous Stainless Steel Hollow-Fibers through Multi-Modal Particle Size Sintering towards Pore Engineering
Publisher: MDPI AG
Date: 04-08-2017
Study on Nanocellulose by High Pressure Homogenization in Homogeneous Isolation
Publisher: Springer Science and Business Media LLC
Date: 03-2015
Temperature-Responsive Aldehyde Hydrogels with Injectable, Self-Healing, and Tunable Mechanical Properties
Publisher: American Chemical Society (ACS)
Date: 24-05-2022
DOI: 10.1021/ACS.BIOMAC.2C00260
Abstract: Injectable and self-healing hydrogels with exemplary biocompatibility and tunable mechanical properties are urgently needed due to their significant advantages for tissue engineering applications. Here, we report a new temperature-responsive aldehyde hydrogel with dual physical-cross-linked networks and injectable and self-healing properties prepared from an ABA-type triblock copolymer, poly{[FPMA(4-formylphenyl methacrylate)-
Exosomes and Nanoengineering: A Match Made for Precision Therapeutics.
Publisher: Wiley
Date: 18-09-2019
Abstract: Targeted exosomal delivery systems for precision nanomedicine attract wide interest across areas of molecular cell biology, pharmaceutical sciences, and nanoengineering. Exosomes are naturally derived 50-150 nm nanovesicles that play important roles in cell-to-cell and/or cell-to-tissue communications and cross-species communication. Exosomes are also a promising class of novel drug delivery vehicles owing to their ability to shield their payload from chemical and enzymatic degradations as well as to evade recognition by and subsequent removal by the immune system. Combined with a new class of affinity ligands known as aptamers or chemical antibodies, molecularly targeted exosomes are poised to become the next generation of smartly engineered nanovesicles for precision medicine. Here, recent advances in targeted exosomal delivery systems engineered by aptamer for future strategies to promote human health using this class of human-derived nanovesicles are summarized.
Nucleic acid aptamer-guided cancer therapeutics and diagnostics: the next generation of cancer medicine.
Publisher: Ivyspring International Publisher
Date: 2015
DOI: 10.7150/THNO.10202
Interphase precipitation hardening of a TiMo microalloyed dual-phase steel produced by continuous cooling
Publisher: Elsevier BV
Date: 02-2021
Investigating the Fibre Configuration in Confined Channel Flow with Recirculations
Publisher: Civil-Comp Press
Date: 1998
DOI: 10.4203/CCP.54.11.1
Metal organic framework based catalysts for CO2 conversion
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6MH00484A
Abstract: Metal organic frameworks (MOFs) are hybrid crystalline materials, exhibiting high specific surface areas, controllable pore sizes and surface chemistry.
Synthesis of porous iron hydroxy phosphate from phosphate residue and its application as a Fenton-like catalyst for dye degradation
Publisher: Elsevier BV
Date: 02-2022
Driver Recognition Based on Dynamic Handgrip Pattern on Steeling Wheel
Publisher: IEEE
Date: 07-2011
DOI: 10.1109/SNPD.2011.33
Three-dimensional pore structure analysis of Nano/Microfibrous scaffolds using confocal laser scanning microscopy
Publisher: Wiley
Date: 08-09-2013
DOI: 10.1002/JBM.A.34379
Abstract: Specific internal pore architectures are required to provide the needed biological and biophysical functions for fibrous scaffolds as these architectures are critical to cell infiltration and in-grows performance. However, the key challenging on evaluating 3D pore structure of fibrous scaffolds for better understanding the capability of different structures for biological application is not well investigated. This article reports a fast, accurate, nondestructive, and comprehensive evaluation approach based on confocal laser scanning microscopy (CLSM) and three-dimensional image analysis to study the pore structure and porosity parameters of Nano/Microfibrous scaffolds. Also a new method of making the fiber fluorescent using quantum dots (QDs) was applied before 3D imaging. Fibrous scaffolds with different porosity parameters produced by electrospinning and their 3D-pore structure was evaluated by this approach and the results were compared to results of capillary flow porometry. The pore structural properties measured in this approach are in good agreement with that measured by the capillary flow porometry (with significant level 0.05). Furthermore, the introduced approach can measure the pore interconnectivity of the scaffold.
Investigation of hybrid ion-exchange membranes reinforced with non-woven metal meshes for electro-dialysis applications
Publisher: Elsevier BV
Date: 06-2015
On-line tool condition monitoring and control system in forging processes
Publisher: Elsevier BV
Date: 09-2002
Photocatalytic-triggered nanopores across multilayer graphene for high-permeation membranes
Publisher: Elsevier BV
Date: 09-2022
Calibration of wavelength shift for a fibre Bragg grating using a single mode laser source - art. no. 64141P
Publisher: SPIE
Date: 27-12-2007
DOI: 10.1117/12.695653
Computational thermal analysis of a continuous flow micro Polymerase Chain Reaction (PCR) chip - art. no. 641517
Publisher: SPIE
Date: 27-12-2007
DOI: 10.1117/12.695655
Ultrahigh volumetric capacitance biomorphic porous carbon material derived from mold
Publisher: Elsevier BV
Date: 12-2016
RNA aptamers targeting cancer stem cell marker CD133
Publisher: Elsevier BV
Date: 03-2013
DOI: 10.1016/J.CANLET.2012.11.032
Abstract: The monoclonal antibody against the AC133 epitope of CD133 has been widely used as a cell surface marker of cancer stem cells in several different cancer types. Here, we describe the isolation and characterisation of two RNA aptamers, including the smallest described 15 nucleotide RNA aptamer, which specifically recognise the AC133 epitope and the CD133 protein with high sensitivity. As well, both these aptamers show superior tumour penetration and retention when compared to the AC133 antibody in a 3-D tumour sphere model. These novel CD133 aptamers will aid future development of cancer stem cell targeted therapeutics and molecular imaging.
Short Review on Porous Metal Membranes—Fabrication, Commercial Products, and Applications
Publisher: MDPI AG
Date: 18-09-2018
Abstract: Porous metal membranes have recently received increasing attention, and significant progress has been made in their preparation and characterisation. This progress has stimulated research in their applications in a number of key industries including wastewater treatment, dairy processing, wineries, and biofuel purification. This review examines recent significant progress in porous metal membranes including novel fabrication concepts and applications that have been reported in open literature or obtained in our laboratories. The advantages and disadvantages of the different membrane fabrication methods were presented in light of improving the properties of current membrane materials for targeted applications. Sintering of particles is one of the main approaches that has been used for the fabrication of commercial porous metal membranes, and it has great advantages for the fabrication of hollow fibre metal membranes. However, sintering processes usually result in large pores (e.g., µm). So far, porous metal membranes have been mainly used for the filtration of liquids to remove the solid particles. For porous metal membranes to be more widely used across a number of separation applications, particularly for water applications, further work needs to focus on the development of smaller pore (e.g., sub-micron) metal membranes and the significant reduction of capital and maintenance costs.
Thermally-stable photo-curing chemistry for additive manufacturing by direct melt electrowriting
Publisher: Elsevier BV
Date: 03-2022
Release of hazardous nanoplastic contaminants due to microplastics fragmentation under shear stress forces
Publisher: Elsevier BV
Date: 02-2020
DOI: 10.1016/J.JHAZMAT.2019.121393
Abstract: The presence of nanoplastics in water has become a major environmental concern in the last decade however the knowledge on the origin and formation of these emerging contaminants is lacking due to analytical challenges in detection and quantification techniques. The release of nanoplastics due to the fragmentation of microplastics extracted from a facial scrub and the resulting toxicity on aquatic species are reported here for the first time. The daily use of 4 g of facial scrub could release up to 10
Towards next generation high throughput ion exchange membranes for downstream bioprocessing: A review
Publisher: Elsevier BV
Date: 04-2022
Chironomidae (Midge) Sensitivities to Ammonia Using Multiple Endpoints in China and Australia for the Development of Water Quality Criteria for Freshwater River Systems in China.
Publisher: Wiley
Date: 27-08-2021
DOI: 10.1002/ETC.5152
Abstract: Deriving water quality criteria (WQC) for aquatic risk assessment requires sufficient toxicity data, which can determine the accuracy of WQC. Given that toxicity data vary between test species and endpoints, there is a great need to compare such data to generate the most suitable data set for WQC derivation. In the present study, a series of 11 ammonia exposure bioassays were conducted on Chironomidae species in either China or Australia, with test species and test endpoints varied (2 Chironomus sp., enzymatic up to lethal endpoints, and no‐observed‐effect concentration up to median lethal concentration [LC50] as endpoint metrics). There were no statistically significant differences between toxicity results generated from China compared to Australia using Chironomus sp., indicating that published data on native species generated in different countries could be appropriate for inclusion in the development of local Chinese WQC. In addition, the Chironomidae larvae laboratory‐based toxicity value (LC50 = 384.6 mg/L) was lower than that of the in situ field‐based toxicity value (LC50 ≥ 451.2 mg/L) where sensitive life stages are used, and, specifically for C. riparius , endpoints linked to biochemical and gene expression effects could be as sensitive as or more sensitive than chronic endpoints, both of which were more sensitive than acute endpoints. These findings help in the development of WQC by demonstrating the suitability of inclusion of toxicity data from a range of sources, as well as adding to the overall pool of knowledge regarding sensitivity to ammonia which can be used in aquatic risk assessment. Environ Toxicol Chem 2021 :2899–2911. © 2021 SETAC
Fabrication of high specificity hollow mesoporous silica nanoparticles assisted by Eudragit for targeted drug delivery
Publisher: Elsevier BV
Date: 05-2015
DOI: 10.1016/J.JCIS.2014.12.053
Abstract: Hollow mesoporous silica nanoparticles (HMSNs) are one of the most promising carriers for effective drug delivery due to their large surface area, high volume for drug loading and excellent biocompatibility. However, the non-ionic surfactant templated HMSNs often have a broad size distribution and a defective mesoporous structure because of the difficulties involved in controlling the formation and organization of micelles for the growth of silica framework. In this paper, a novel "Eudragit assisted" strategy has been developed to fabricate HMSNs by utilising the Eudragit nanoparticles as cores and to assist in the self-assembly of micelle organisation. Highly dispersed mesoporous silica spheres with intact hollow interiors and through pores on the shell were fabricated. The HMSNs have a high surface area (670 m(2)/g), small diameter (120 nm) and uniform pore size (2.5 nm) that facilitated the effective encapsulation of 5-fluorouracil within HMSNs, achieving a high loading capacity of 194.5 mg(5-FU)/g(HMSNs). The HMSNs were non-cytotoxic to colorectal cancer cells SW480 and can be bioconjugated with Epidermal Growth Factor (EGF) for efficient and specific cell internalization. The high specificity and excellent targeting performance of EGF grafted HMSNs have demonstrated that they can become potential intracellular drug delivery vehicles for colorectal cancers via EGF-EGFR interaction.
Sub-50 nm amorphous iron phosphate dihydrate nanoplates fabricated via liquid exfoliation from recycled steelmaking phosphate slag
Publisher: Elsevier BV
Date: 12-2018
Study on Thermooxidative Degradation of Poly(Vinyl Alcohol)/Silica Nanocomposite Prepared with SAM Technique
Publisher: Trans Tech Publications, Ltd.
Date: 2005
DOI: 10.4028/WWW.SCIENTIFIC.NET/JMNM.23.375
Abstract: The thermooxidative degradation of poly (vinyl alcohol)/silica (PVA/SiO2) nanocomposite prepared with self-assembly monolayer (SAM) technique is investigated by using a thermogravimetry (TG) and Fourier transform infrared spectroscopy coupled thermogravimetry (FTIR/TG). The results show that although the thermooxidative degradation process of prepared nanocomposite is similar to that of the pure PVA, its thermooxidative stability has been greatly improved.
Structure and Properties of Self-assembled Narural Rubber/Multi-walled Carbon Nanotube Composites
Publisher: Springer Science and Business Media LLC
Date: 10-2011
Functionalization of Hollow Mesoporous Silica Nanoparticles for Improved 5-FU Loading
Publisher: Hindawi Limited
Date: 2015
DOI: 10.1155/2015/872035
Abstract: Hollow mesoporous silica nanoparticles were successfully fabricated and functionalized with appropriate silanes. After modifications, amine, carboxyl, cyano, and methyl groups were grafted onto the nanoparticles and all functionalized hollow mesoporous silica nanoparticles maintained a spherical and hollow structure with a mean diameter of ~120 nm and a shell thickness of ~10 nm. The loading capacity of the hollow mesoporous silica nanoaprticles to the anticancer drug, 5-fluorouracil, can be controlled via precise functionalization. The presence of amine groups on the surface of nanoparticles resulted in the highest loading capacity of 28.89%, due to the amine functionalized nanoparticles having a similar hydrophilicity but reverse charge to the drug. In addition, the change in pH leads to the variation of the intensity of electrostatic force between nanoparticles and the drug, which finally affects the loading capacity of amine functionalized hollow mesoporous silica nanoparticles to some extent. Higher drug loading was observed at pH of 7.4 and 8.5 as 5-fluorouracil becomes more deprotonated in alkaline conditions. The improved drug loading capacity by amine functionalized hollow mesoporous silica nanoparticles has demonstrated that they can become potential intracellular 5-fluorouracil delivery vehicles for cancers.
Chemical Vapor Deposition for Film Deposition
Publisher: Springer US
Date: 2008
Aptamers as Theranostic Agents: Modifications, Serum Stability and Functionalisation
Publisher: MDPI AG
Date: 10-10-2013
DOI: 10.3390/S131013624
Understanding water and ion transport behaviour and permeability through poly(amide) thin film composite membrane
Publisher: Elsevier BV
Date: 08-2015
Nanoparticulate Drug Delivery to Colorectal Cancer: Formulation Strategies and Surface Engineering
Publisher: Bentham Science Publishers Ltd.
Date: 10-05-2016
DOI: 10.2174/1381612822666160217140932
Abstract: The evolution of polymer-based nanoparticle as a drug delivery carrier has greatly contributed to the development of advanced nano and micro-medicine in the past few decades. The polymer-based nanoparticles of biodegradable and biocompatible polymers such as poly (lactide-co-glycolide) and chitosan which have been approved by Food & Drug Administration and/or European Medicine Agency can particularly facilitate the maintaining of specific properties for a real transition from laboratory to the clinical oral and parental administration. This review presents an overview of the strategies of preparing polymeric nanoparticles and using them for targeting colorectal cancer. Theranostics and surface engineering aspects of nanoparticle design in colonic cancer delivery are also highlighted.
Atomically-thin Schottky-like photo-electrocatalytic cross-flow membrane reactors for ultrafast remediation of persistent organic pollutants
Publisher: Elsevier BV
Date: 06-2022
DOI: 10.1016/J.WATRES.2022.118519
Abstract: The remediation of persistent organic pollutants in surface and ground water represents a major environmental challenge worldwide. Conventional physico-chemical techniques do not efficiently remove such persistent organic pollutants and new remediation techniques are therefore required. Photo-electro catalytic membranes represent an emerging solution that can combine photocatalytic and electrocatalytic degradation of contaminants along with molecular sieving. Herein, macro-porous photo-electro catalytic membranes were prepared using conductive and porous stainless steel metal membranes decorated with nano coatings of semiconductor photocatalytic metal oxides (TiO
Evolution of Moisture Management Behavior of High-wicking 3D Warp Knitted Spacer Fabrics
Publisher: Springer Science and Business Media LLC
Date: 04-2012
Carbon nanotube membranes – Strategies and challenges towards scalable manufacturing and practical separation applications
Publisher: Elsevier BV
Date: 02-2021
Management of cardiovascular diseases with micro systems and nanotechnology
Publisher: American Scientific Publishers
Date: 09-2006
DOI: 10.1166/JNN.2006.446
Abstract: Cardiovascular diseases are the leading cause of death and morbidity in industrialized nations and are becoming an urgent health problem for all nations due to the unstoppable trend of an ageing and obese population. Due to the rapid development of micro total analysis systems ( μ TAS) and nanotechnology in recent years, they will play an important role in the diagnosis, management, and therapy of cardiovascular diseases. It is envisaged that the micro and nanotechnologies developed for treating other diseases shall be explored for cardiovascular applications to reduce the research effort required for commercializing the devices and drugs to meet the increasing demand of the cardiovascular patients.
Molecular dynamics study of response of liquid N,N-dimethylformamide to externally applied electric field using a polarizable force field
Publisher: AIP Publishing
Date: 23-01-2014
DOI: 10.1063/1.4861893
Abstract: The behavior of Liquid N,N-dimethylformamide subjected to a wide range of externally applied electric fields (from 0.001 V/nm to 1 V/nm) has been investigated through molecular dynamics simulation. To approach the objective the AMOEBA polarizable force field was extended to include the interaction of the external electric field with atomic partial charges and the contribution to the atomic polarization. The simulation results were evaluated with quantum mechanical calculations. The results from the present force field for the liquid at normal conditions were compared with the experimental and molecular dynamics results with non-polarizable and other polarizable force fields. The uniform external electric fields of higher than 0.01 V/nm have a significant effect on the structure of the liquid, which exhibits a variation in numerous properties, including molecular polarization, local cluster structure, rotation, alignment, energetics, and bulk thermodynamic and structural properties.
Nanobionics-Driven Synthesis of Molybdenum Oxide Nanosheets with Tunable Plasmonic Resonances in Visible Light Regions
Publisher: American Chemical Society (ACS)
Date: 20-12-0020
Sparse representation with multi-manifold analysis for texture classification from few training images
Publisher: Elsevier BV
Date: 11-2014
Microencapsulation of coupled folate and chitosan nanoparticles for targeted delivery of combination drugs to colon
Publisher: Informa UK Limited
Date: 08-09-2015
DOI: 10.3109/02652048.2014.944947
Abstract: Folate-chitosan nanoparticles, co-loaded with 5-fluourouacil (5-FU) and leucovorin (LV) and prepared by ionic gelation technology were physically microencapsulated by enteric polymer using a solvent evaporation method. Average particle size of the microencapsulated particles was in the range of 15 to 35 µm. High drug encapsulation efficiency was obtained for both 5-FU and LV in the microencapsulated particles. Both drugs were in amorphous state in the microencapsulated particles. By enteric coating, excellent pH-dependent release profile was achieved and no drug release was observed in simulated gastric and intestinal fluids. However, when the pH value reached the soluble threshold of Eudragit S-100, a constant and slow drug release was observed. The results indicated that these microencapsulated particles are a promising vehicle for selectively targeting drugs to colon in the chemotherapy of colon cancer.
Improved 3D Thinning Algorithms for Skeleton Extraction
Publisher: IEEE
Date: 2009
Silver nanoparticles prepared by gamma irradiation across metal-organic framework templates
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA10260F
Abstract: In this study, we demonstrate for the first time the successful fabrication of well-dispersed ultrafine silver nanoparticles inside metal–organic frameworks through a single step gamma irradiation at room temperature.
Preparation of nanoparticles by crosslinking folate conjugated chitosan with vanillin and its characterization
Publisher: Trans Tech Publications, Ltd.
Date: 02-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.466-467.454
Abstract: Functionalized chitosan (CS) were widely used as drug delivery system in the chemotherapy of various disease. In this work, folate (FA) was conjugated into chitosan molecular as targeting ligand based on Schiff reaction between –NH 2 group of CS and –COOH group of FA. And nanoparticles were made by emulsion method with vanillin novel cross-linking agent. The FA modified CS and its nanoparticles were characterized by Fourier transform spectroscopy (FT-IR), scanning electron microscope (SEM) and Zeta potential. SEM results confirmed the nanoparticles made from FA-CS conjugate were spherical in shape and were about 100 nm in size. Zeta potential analysis revealed that the nanoparticles were negatively charged with charge density of -7.73mV.
Numerical identification of critical erosion prone areas in tube heat exchangers
Publisher: Informa UK Limited
Date: 2020
Formulation Optimization For High Drug Loading Colonic Drug Delivery Carrier
Publisher: IEEE
Date: 10-2010
Bacteria-Premised Nanobiopesticides for the Management of Phytopathogens and Pests
Publisher: American Chemical Society (ACS)
Date: 24-04-2023
Morphology of self-assembled polyvinyl alcohol/silica nanocomposites studied with atomic force microscopy
Publisher: Springer Science and Business Media LLC
Date: 15-03-2007
Constitutive modelling of extrusion of lead with cyclic torsion
Publisher: Elsevier BV
Date: 2000
Ammonium-assisted green fabrication of graphene/natural rubber latex composite
Publisher: Wiley
Date: 06-12-2013
DOI: 10.1002/PC.22380
Flux vs. permeability: How to effectively evaluate mass transfer performance of membranes in oil-water separation br
Publisher: Elsevier BV
Date: 10-2022
A review of boron nitride-based photocatalysts for carbon dioxide reduction
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2TA09564E
Abstract: The conversion of carbon dioxide (CO 2 ) into valuable chemicals by photoreduction is an effective strategy for tackling the global warming conundrum.
A high sensitivity optical touch trigger probe for down scaled 3D CMMs
Publisher: SPIE
Date: 06-11-2006
DOI: 10.1117/12.716179
The influence of roll speed on the rolling of metal plates
Publisher: Springer Science and Business Media LLC
Date: 07-1998
DOI: 10.1007/BF03026423
Predicting flow strength of austenitic steels with an IPANN model using different training strategies
Publisher: Elsevier BV
Date: 12-2000
Chlorination reaction kinetics of the low-concentration natural rubber latex
Publisher: Rubber Division, ACS
Date: 12-2013
DOI: 10.5254/RCT.13.87950
Abstract: The kinetics of the chlorination of low-concentration natural rubber latex was investigated. The kinetic data were derived from chlorine concentrations in chlorinated natural rubber (CNR) for different reaction times and temperatures. The chlorination reaction process can be ided into two stages—a high-speed period (stage 1) and a low-speed period (stage 2)—using the graphed curves of the change in chlorine content with change in reaction time. The relationship of the chlorination conversion ratio x to reaction time t and temperature T can be expressed as x = 1.15 − 0.916e−kt, where the kinetic constant k = 0.00907 + 6.39 × 10−6e0.0211T. The overall apparent reaction order n for the first stage is 4.8, whereas for the second stage it is 1.0, using kinetic fitting. The apparent activation energy Ea was calculated, using the Arrhenius equation, to be 5.32 kJ/mol for stage 2. The lower value of Ea suggests that the chlorination rate is less sensitive to reaction temperature in this stage. The chlorination reaction rate increases with the increase in reaction temperature during stage 2, but the effects are not visible. However, a temperature that is too high may result in energy being wasted. We conclude that the proper reaction temperature in stage 2, taking the kinetic effects into account, is between 323.15 and 353.15 K.
Structure and thermal stability of natural rubber reinforced with In Situ generated zinc sorbate
Publisher: Trans Tech Publications, Ltd.
Date: 05-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.239-242.903
Abstract: In situ prepared zinc disorbate (ZDS) in natural rubber (NR) by the reaction of zinc oxide and sorbic acid was used to reinforce the dicumyl peroxide-cured NR vulcanizate. The changes in mechanical properties of NR vulcanizates after ageing and were determined and the structures and thermal stability of vulcanizates were also analyzed using scanning electron microscope and thermal gravimetric analyzer. The change ratios in tensile strength and elongation at break of NR vulcanizate with theoretic formation of ZDS of 21phr can be increased to -33 from -44 and -27 from -38 after ageing and the initial weight loss temperature of NR vulcanizate can be increased for about 7°C as compared to un-reinforced NR vulcanizate, indicating that the antioxidative behavior and thermal stability of NR can be improved significantly with theoretic formation of ZDS of 21phr.
3-Dimensional characterization of membrane with nanoporous structure using TEM tomography and image analysis
Publisher: Elsevier BV
Date: 2010
Fabrication of conductive elastic nanocomposites via framing intact interconnected graphene networks
Publisher: Elsevier BV
Date: 08-2014
Computational Two-Phase Air/Fiber Flow Within Transfer Channels of Rotor Spinning Machines
Publisher: SAGE Publications
Date: 04-1997
DOI: 10.1177/004051759706700406
Abstract: The pneumatic conveyance of fibers within confined channels is particularly relevant to textile engineering, with applications such as transporting in idual fibers within rotor spinning machines. The channels of converging shape within these machines are designed to help straighten the orientation of the fibers that have escaped from the opening roller. This allows a satisfactory configuration of fibers to be presented to the spinning rotor surface, which in turn improves yarn and subsequent fabric properties. In this study, a new air/fiber two-phase model is developed to simulate fiber movement within confined channels. The computation is based on the results from single-phase air flow simulations in a one-way coupling Lagrangian strategy for predicting fiber trajectories. Initial fiber position and the underlying air flow pattern are demonstrated to be critical to the final fiber configuration at the exit of the channel. A streamwise straight fiber tends to generate a leading hook, while a cross fiber is subject to bending. The aerodynamic forces very nearly retain the fiber configuration adopted at the channel inlet without significant improvement of fiber straightness, since hooks are simultaneously generated and eliminated during transport. Fiber opening and fiber detachment from the opening roller are identified as the two critical factors in obtaining straight fibers at the channel inlet and their transport to the spinning zone.
The application of constitutive and artificial neural network models to predict the hot strength of steels
Publisher: Iron and Steel Institute of Japan
Date: 1999
Integrated membrane system without adding chemicals for produced water desalination towards zero liquid discharge
Publisher: Elsevier BV
Date: 12-2020
Inflammation and cancer stem cells
Publisher: Elsevier BV
Date: 04-2013
DOI: 10.1016/J.CANLET.2013.07.031
Abstract: Cancer stem cells are becoming recognised as being responsible for metastasis and treatment resistance. The complex cellular and molecular network that regulates cancer stem cells and the role that inflammation plays in cancer progression are slowly being elucidated. Cytokines, secreted by tumour associated immune cells, activate the necessary pathways required by cancer stem cells to facilitate cancer stem cells progressing through the epithelial-mesenchymal transition and migrating to distant sites. Once in situ, these cancer stem cells can secrete their own attractants, thus providing an environment whereby these cells can continue to propagate the tumour in a secondary niche.
Retention of the original LLC structure in a cross-linked poly(ethylene glycol) diacrylate hydrogel with reinforcement from a silica network
Publisher: Royal Society of Chemistry (RSC)
Date: 2014
DOI: 10.1039/C4SM00589A
Abstract: A sufficient and well dispersed silica network stabilizes the nanostructure in cross-linked poly(ethylene glycol) diacrylate templated from hexagonal lyotropic liquid crystals (LLC).
Plasma Modification and Synthesis of Membrane Materials—A Mechanistic Review
Publisher: MDPI AG
Date: 03-08-2018
Abstract: Although commercial membranes are well established materials for water desalination and wastewater treatment, modification on commercial membranes is still necessary to deliver high-performance with enhanced flux and/or selectivity and fouling resistance. A modification method with plasma techniques has been extensively applied for high-performance membrane production. The paper presents a mechanistic review on the impact of plasma gas and polymerization, at either low pressure or atmospheric pressure on the material properties and performance of the modified membranes. At first, plasma conditions at low-pressure such as plasma power, gas or monomer flow rate, reactor pressure, and treatment duration which affect the chemical structure, surface hydrophilicity, morphology, as well as performance of the membranes have been discussed. The underlying mechanisms of plasma gas and polymerization have been highlighted. Thereafter, the recent research in plasma techniques toward membrane modification at atmospheric environment has been critically evaluated. The research focuses of future plasma-related membrane modification, and fabrication studies have been predicted to closely relate with the implementation of the atmospheric-pressure processes at the large-scale.
Relating forward water and reverse salt fluxes to membrane porosity and tortuosity in forward osmosis: CFD modelling
Publisher: Elsevier BV
Date: 06-2020
Manufacturing Techniques and Surface Engineering of Polymer Based Nanoparticles for Targeted Drug Delivery to Cancer
Publisher: MDPI AG
Date: 02-2016
DOI: 10.3390/NANO6020026
Inhibition of Autophagy Promotes the Elimination of Liver Cancer Stem Cells by CD133 Aptamer-Targeted Delivery of Doxorubicin
Publisher: MDPI AG
Date: 03-11-2022
DOI: 10.3390/BIOM12111623
Abstract: Doxorubicin is the most frequently used chemotherapeutic agent for the treatment of hepatocellular carcinoma. However, one major obstacle to the effective management of liver cancer is the drug resistance derived from the cancer stem cells. Herein, we employed a CD133 aptamer for targeted delivery of doxorubicin into liver cancer stem cells to overcome chemoresistance. Furthermore, we explored the efficacy of autophagy inhibition to sensitize liver cancer stem cells to the treatment of CD133 aptamer-doxorubicin conjugates based on the previous observation that doxorubicin contributes to the survival of liver cancer stem cells by activating autophagy. The kinetics and thermodynamics of aptamer-doxorubicin binding, autophagy induction, cell apoptosis, and self-renewal of liver cancer stem cells were studied using isothermal titration calorimetry, Western blot analysis, annexin V assay, and tumorsphere formation assay. The aptamer-cell binding andintracellular accumulation of doxorubicin were quantified via flow cytometry. CD133 aptamer-guided delivery of doxorubicin resulted in a higher doxorubicin concentration in the liver cancer stem cells. The combinatorial treatment strategy of CD133 aptamer-doxorubicin conjugates and an autophagy inhibitor led to an over 10-fold higher elimination of liver cancer stem cells than that of free doxorubicin in vitro. Future exploration of cancer stem cell-targeted delivery of doxorubicin in conjunction with autophagy inhibition in vivo may well lead to improved outcomes in the treatment of hepatocellular carcinoma.
Superhydrophobic and Superoleophilic Micro-Wrinkled Reduced Graphene Oxide as a Highly Portable and Recyclable Oil Sorbent
Publisher: American Chemical Society (ACS)
Date: 12-04-2016
Abstract: The potential of superhydrophobic and superoleophilic microwrinkled reduced graphene oxide (MWrGO) structures is here demonstrated for oil spill cleanup. The impact of the thickness of MWrGO films on the sorption performance of three different oils was investigated. Water contact angles across the MWrGO surfaces were found to exceed 150°, while oil could be easily absorbed by the microwrinkled structures of MWrGO within seconds after contact. Although the oil surface diffusion rate was not found to be dependent on the thickness of the graphene oxide films, the oil sorption capacity was the largest with the thinner MWrGO films due to the high surface area resulting from their fine surface texture. Furthermore, the composite films can be repeatedly used for at least 20 oil sorption-removal cycles without any notable loss in selectivity and uptake capacity. These MWrGO/elastomer composite films could be applied as a potential candidate material for future oil spill cleanup.
Study and simulation of the model about high-speed maglev drive needles
Publisher: Trans Tech Publications, Ltd.
Date: 04-2012
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.503-504.1037
Abstract: Based on the magnetic suspension theory, this paper has proposed a kind of suspension-type jacquard needle driving principle, and designed its 3-dimension model method. By making finite element analysis on suspension-type needles, analyzing the experimental data and designing the structure, we can get the relationship among related parameters under conditions of different permanent-magnet thickness and air gaps, which can provide criteria in theory and application for designing on new needle driving principle, control system and needle.
The prediction of the hot strength in steels with an integrated phenomenological and artificial neural network model
Publisher: Elsevier BV
Date: 03-1999
In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures
Publisher: MDPI AG
Date: 05-10-2018
DOI: 10.20944/PREPRINTS201810.0110.V1
Abstract: The alignment of nanostructures in materials such as lyotropic liquid crystals (LLCs) templated materials has the potential to signicantly improve their performances. However, accurately characterising and quantifying the alignement of such fine structures remains very challenging. In situ small angle X-ray scattering (SAXS) and molecular dynamics were employed for the first time to understand the hexagonal LLC alignment process with magnetic nanoparticles under a magnetic field. The enhanced alignment has been illustrated from the distribution of azimuthal intensity in the s les exposed to magnetic field. Molecular dynamics simulations reveal the relationship between the imposed force of the magenetic nanoparticles under magnetic field and the force transferred to the LLC cylinders which leads to the LLC alignment. The combinational study with experimental measurement and computational simulation will enable the development and control of nanostructures in novel materials for various applications.
Decomposition properties of PVA/graphene composites during melting-crystallization
Publisher: Elsevier BV
Date: 09-2015
A theoretical analysis and prediction of pore size and pore size distribution in electrospun multilayer nanofibrous materials
Publisher: Wiley
Date: 20-02-2013
DOI: 10.1002/JBM.A.34487
Abstract: Electrospinning process can fabricate nanomaterials with unique nanostructures for potential biomedical and environmental applications. However, the prediction and, consequently, the control of the porous structure of these materials has been impractical due to the complexity of the electrospinning process. In this research, a theoretical model for characterizing the porous structure of the electrospun nanofibrous network has been developed by combining the stochastic and stereological probability approaches. From consideration of number of fiber-to-fiber contacts in an electrospun nanofibrous assembly, geometrical and statistical theory relating morphological and structural parameters of the network to the characteristic dimensions of interfibers pores is provided. It has been shown that these properties are strongly influenced by the fiber diameter, porosity, and thickness of assembly. It is also demonstrated that at a given network porosity, increasing fiber diameter and thickness of the network reduces the characteristic dimensions of pores. It is also discussed that the role of fiber diameter and number of the layer in the assembly is dominant in controlling the pore size distribution of the networks. The theory has been validated experimentally and results compared with the existing theory to predict the pore size distribution of nanofiber mats. It is believed that the presented theory for estimation of pore size distribution is more realistic and useful for further studies of multilayer random nanofibrous assemblies.
Electro-Catalytic Biodiesel Production from Canola Oil in Methanolic and Ethanolic Solutions with Low-Cost Stainless Steel and Hybrid Ion-Exchange Resin Grafted Electrodes
Publisher: Frontiers Media SA
Date: 20-07-2017
Automatic inspection of metallic surface defects using genetic algorithms
Publisher: Elsevier BV
Date: 09-2002
In situ synthesis of natural rubber latex-supported gold nanoparticles for flexible SERS substrates
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA05681K
Abstract: Natural rubber latex (NRL) from Hevea brasiliensis was used as a matrix to synthesize gold nanoparticles (AuNPs), leading to an organic–inorganic hybrid latex of NRL-supported AuNPs (AuNPs@NRL).
Formation of nanoscale titanium carbides in ferrite: an atomic study
Publisher: Springer Science and Business Media LLC
Date: 03-2016
Wrinkled silica doped electrospun nano-fiber membranes with engineered roughness for advanced aerosol air filtration
Publisher: Elsevier BV
Date: 05-2019
Dynamic mechanical analysis of polyvinylalcohol/silica nanocomposite
Publisher: Elsevier BV
Date: 09-2005
Thermal analysis of inclined micro heat pipes
Publisher: ASME International
Date: 09-08-2006
DOI: 10.1115/1.2137763
Abstract: The effect of gravity is investigated for the case of inclined-triangular- and trapezoidal-shaped micro heat pipes (MHPs). The study is limited to the case of positive inclination, whereby the condenser section is elevated from the horizontal position. The results show that the axial distribution of the liquid phase is changed qualitatively. While the liquid distribution still increases monotonically starting from the evaporator end, it reaches its maximum value not at the condenser end but at a certain point in the condenser section, beyond which the liquid distribution decreases monotonically. This maximum point, where potentially flooding will first take place, results from the balance between the effects of gravity and the heat load on the MHPs. As the liquid distribution assumes its greatest value at the maximum point, a throat-like formation appears there. This formation is detrimental to the performance of MHPs, because it hinders, and at worst may block, the axial flow of the vapor phase. The results also show that the maximum point occurs further away from the condenser end for a triangular-shaped MHP compared to a trapezoidal-shaped MHP.
Biotemplated fabrication of a novel hierarchical porous C/LiFePO4/C composite for Li-ion batteries
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA11816B
Abstract: A novel hierarchical porous C/LiFePO 4 /bio-C composite was fabricated by using artemia cyst shells as natural biological template and revealed an excellent high rate performance.
Oxidized Chitosan-Tobramycin (OCS-TOB) Submicro-Fibers for Biomedical Applications
Publisher: MDPI AG
Date: 03-06-2022
DOI: 10.3390/PHARMACEUTICS14061197
Abstract: Chitosan (CS) is a biodegradable, biocompatible, and non-toxic natural amino-poly-saccharide with antibacterial ability, owing to its positively charged amino groups. However, the low charge density leads to poor antibacterial efficiency which cannot meet the biomedical application requirements. In this study, Tobramycin (TOB) was grafted onto the backbone of oxidized chitosan (OCS) to synthesize oxidized chitosan-tobramycin (OCS-TOB). FTIR, 1H NMR and elemental analysis results demonstrated that OCS-TOB was successfully synthesized. OCS-TOB/PEO composite fibrous materials were produced by a self-made centrifugal spinning machine. In vitro experiments showed that cells proliferated on the submicro-fibrous OCS-TOB/PEO of appropriate concentration, and the antibacterial ability of OCS-TOB was much improved, compared with pristine CS. The results demonstrated that OCS-TOB/PEO nanofibrous materials could potentially be used for biomedical applications.
Ethephon Increases Rubber Tree Latex Yield by Regulating Aquaporins and Alleviating the Tapping-Induced Local Increase in Latex Total Solid Content
Publisher: Springer Science and Business Media LLC
Date: 02-02-2016
Preparation of size-selective Mn3O4 hexagonal nanoplates with superior electrochemical properties for pseudocapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5CP03366G
Abstract: Regular Mn 3 O 4 hexagonal nanoplates are synthesized for a supercapacitor electrode. This electrode exhibits excellent cycling stability with 100% capacity retention after 5000 cycles.
Molecular dynamics approach to the structural characterization and transport properties of poly(acrylonitrile)/N,N-dimethylformamide solutions
Publisher: Elsevier BV
Date: 07-2016
Applications of nano-porous graphene materials - critical review on performance and challenges
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9MH01570A
Abstract: A critical review on the potential of nano-porous graphene materials, their key structural and physicochemical properties for applications in the areas of separation and sensing and energy storage.
Homogeneous isolation of nanocellulose from sugarcane bagasse by high pressure homogenization
Publisher: Elsevier BV
Date: 11-2012
DOI: 10.1016/J.CARBPOL.2012.07.038
Abstract: Nanocellulose from sugarcane bagasse was isolated by high pressure homogenization in a homogeneous media. Pretreatment with an ionic liquid (1-butyl-3-methylimidazolium chloride ([Bmim]Cl)) was initially involved to dissolve the bagasse cellulose. Subsequently, the homogeneous solution was passed through a high pressure homogenizer without any clogging. The nanocellulose was obtained at 80 MPa for 30 cycles with recovery of 90% under the optimum refining condition. Nanocellulose had been characterized by Fourier transformed infrared spectra, X-ray diffraction, thermogravimetric analysis, rheological measurements and transmission electron microscopy. The results showed that nanocellulose was 10-20 nm in diameter, and presented lower thermal stability and crystallinity than the original cellulose. The developed nanocellulose would be a very versatile renewable material.
Characterization of membranes with X-ray ultramicroscopy
Publisher: Elsevier BV
Date: 2009
Multifunctional Polymer/Porous Boron Nitride Nanosheet Membranes for Superior Trapping Emulsified Oils and Organic Molecules
Publisher: Wiley
Date: 14-07-2015
Chitosan-Modified PLGA Nanoparticles with Versatile Surface for Improved Drug Delivery
Publisher: Springer Science and Business Media LLC
Date: 06-03-2013
Improvement of the Prediction Accuracy and Efficiency of Hot Strength of Austenitic Steels with Optimised ANN Training Schemes
Publisher: Springer Science and Business Media LLC
Date: 07-1998
DOI: 10.1007/BF03026406
Control of Partial Coalescence of Self-Assembled Metal Nano-Particles across Lyotropic Liquid Crystals Templates towards Long Range Meso-Porous Metal Frameworks Design
Publisher: MDPI AG
Date: 26-10-2015
DOI: 10.3390/NANO5041766
Two-dimensional simulation of air flow in the transfer channel of open-end rotor spinning machines
Publisher: SAGE Publications
Date: 10-1996
DOI: 10.1177/004051759606601005
Abstract: A two-dimensional computational fluid dynamics model is developed to simulate the flow patterns inside the transportation zone of a rotor spinning machine and analyze their effects on yarn properties. The strength and area of recirculation at the inlet of the transfer channel caused by the geometric variation and rotating opening roller are significantly related to fluid flow, and consequently to rotor spun yarn prop erties. Any variation of geometric dimensions of the transfer channel or opening roller velocity affects the air flow pattern, which then alters the configuration of fibers flowing inside the channel. A larger inlet at the transfer channel will lead to a decrease in the inlet mean velocity and will strengthen the primary recirculation zone, which is a potential source for fiber curving and buckling. The ratio of the circumferential velocity of opening roller to mean air flowing velocity is identified as a critical parameter to classify differences in flow patterns. If the ratio is a constant, the flow pattern will not explicitly change, but the drag force will increase with the increase in Reynolds number. Additionally, if the ratio is either too high or too low, the flow is not suitable for maintaining high quality in spun yarns due to the occurrence of strong recirculation at the outer cover side or opening roller side.
EpCAM Aptamer-mediated Survivin Silencing Sensitized Cancer Stem Cells to Doxorubicin in a Breast Cancer Model
Publisher: Ivyspring International Publisher
Date: 2015
DOI: 10.7150/THNO.11692
In Situ Growth of Cu/CuO/Cu2O Nanocrystals within Hybrid Nanofibers for Adsorptive Arsenic Removal
Publisher: American Chemical Society (ACS)
Date: 15-09-2022
Preparation of pH- and salinity-responsive cellulose copolymer in ionic liquid
Publisher: Springer Science and Business Media LLC
Date: 30-07-2014
Effect of ultrasonic wave on latex production and quality of rubber tree
Publisher: Trans Tech Publications, Ltd.
Date: 10-2013
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.419.360
Abstract: The effects of ultrasonic wave on tapping surface of ‘PR107’ rubber tree were studied. Daily production and cumulative production of latex were measured to estimate the effects of ultrasonic wave on latex production. The solid substance content, dry rubber content and mechanical stability of latex were determined to study the effects of ultrasonic wave on latex quality. Results showed that ultrasonic wave could increase both daily and cumulative production of latex and maintain latex basic quality. The daily production of latex was increased and appeared two peaks both in the ultrasound-treated rubber tree and the one with no treatment. The first peak appeared on the fifth day, and the latex production by ultrasound was 212.34 ml and the control was 141.75 ml. The second peak appeared with the production 266.59 ml on the seventeenth day by ultrasound, while the control appeared on the thirteenth day with production of 193.50 ml. The latex cumulative production of ultrasound-treated trees was 209.56 ml higher than that of control in one month. There was little change in solid substance content and dry rubber content between different ultrasonic time. The best mechanical stability of latex was obtained by ultrasound-treating the rubber tree for 4-6 min. it was proved that the ultrasound was helpful in improving the latex production and quality. The application of ultrasonic wave on rubber tree is novel, and its mechanism is worth further research.
Transforming doxorubicin into a cancer stem cell killer via EpCAM aptamer-mediated delivery
Publisher: Ivyspring International Publisher
Date: 2017
DOI: 10.7150/THNO.20168
A thermal degradation mechanism of polyvinyl alcohol/silica nanocomposites
Publisher: Elsevier BV
Date: 06-2007
Schottky-like photo/electro-catalytic carbon nanotube composite ultrafiltration membrane reactors
Publisher: Elsevier BV
Date: 02-2023
Waste-derived low-cost ceramic membranes for water treatment: Opportunities, challenges and future directions
Publisher: Elsevier BV
Date: 10-2022
Mechanism of a green graphene oxide reduction with reusable potassium carbonate
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C4RA14511A
Abstract: The mechanism of a green reduction of graphene oxide by potassium carbonate as recycling deoxidizer has been revealed.
Sub-10-nm Mixed Titanium/Tantalum Oxide Nanoporous Films with Visible-Light Photocatalytic Activity for Water Treatment
Publisher: American Chemical Society (ACS)
Date: 06-03-2019
Boosting Plant Photosynthesis with Carbon Dots: A Critical Review of Performance and Prospects
Publisher: Wiley
Date: 28-06-2023
Abstract: Artificially augmented photosynthesis in nano‐bionic plants requires tunable nano‐antenna structures with physiochemical and optoelectronic properties, as well as unique light conversion capabilities. The use of nanomaterials to promote light capture across photosystems, primarily by carbon dots, has shown promising results in enhancing photosynthesis through tunable uptake, translocation, and biocompatibility. Carbon dots possess the ability to perform both down and up‐light conversions, making them effective light promoters for harnessing solar energy beyond visible light wavelengths.This review presents and discusses the recent progress in fabrication, chemistry, and morphology, as well as other properties such as photoluminescence and energy conversion efficiency of nano‐antennas based on carbon dots. The performance of artificially boosted photosynthesis is discussed and then correlated with the conversion properties of carbon dots and how they are applied to plant models. The challenges related to the nanomaterial delivery and the performance evaluation practices in modified photosystems, consideration of the reliability of this approach, and the potential avenues for performance improvements through other types of nano‐antennas based on alternative nanomaterials are also critically evaluated. It is anticipated that this review will stimulate more high‐quality research in plant nano‐bionics and provide avenues to enhance photosynthesis for future agricultural applications.
Three-dimensional pore structure analysis of polycaprolactone nano-microfibrous scaffolds using theoretical and experimental approaches
Publisher: Wiley
Date: 24-08-2014
DOI: 10.1002/JBM.A.34736
Abstract: In this article the pore structure and porosity parameters of polycaprolactone (PCL) nano-microfibrous scaffolds are investigated using a predicting theoretical model and a nondestructive evaluation approach based on confocal laser scanning microscopy (CLSM) and three-dimensional image analysis. Different fibrous scaffolds with different fiber diameters produced by electrospinning process and their 3D-pore structure were evaluated theoretically and also compared to results of CLSM and capillary flow porometery methods. The effect of polymer concentration on the pore structure of scaffolds was also investigated. The results showed that, the introduced approach not only can measure the pore size distribution of nanofibrous scaffolds, but also can measure pore interconnectivity of fibrous scaffolds. Furthermore, the results showed that increasing the fiber diameter resulted from increasing the polymer concentration in solvent can effectively increase the pore dimensions within the scaffold structure.
Dual-Cross-Linked Network Hydrogels with Multiresponsive, Self-Healing, and Shear Strengthening Properties
Publisher: American Chemical Society (ACS)
Date: 15-12-2021
Synthesis and characterization of folate conjugated chitosan and cellular uptake of its nanoparticles in HT-29 cells
Publisher: Elsevier BV
Date: 05-2011
DOI: 10.1016/J.CARRES.2011.01.027
Abstract: Folate-chitosan (FA-CS) conjugates synthesized by coupling FA with CS render new and improved functions because the original properties of CS are maintained and the targeting ligand of FA is incorporated. In this work, FA-CS conjugates were synthesized based on chemical linking of carboxylic group of FA with amino group of CS as confirmed by Fourier transform spectroscopy (FTIR) and nuclear magnetic resonance ((1)H NMR). FA-CS conjugates displayed less crystal nature when compared to CS. The FA-CS nanoparticles (NPs) were prepared by crosslinking FA-CS conjugates with sodium tripolyphosphate (STPP). Positively charged FA-CS nanoparticles were spherical in shape with a particle size of about 100 nm. Cellular uptake of CS or FA-CS nanoparticles was assayed by fluorescent microscopy using calcein as fluorescent marker in colon cancer cells (HT-29). The FA-CS nanoparticles exhibited improved uptake of HT-29 and could become a potential targeted drug delivery system for colorectal cancer.
Development of a Novel Micro-Spray-Assembly Process for Multilayer Ultra-Thin Film Formation
Publisher: Trans Tech Publications, Ltd.
Date: 2005
DOI: 10.4028/WWW.SCIENTIFIC.NET/JMNM.23.331
Abstract: A novel micro-spray-assembly process and an automatic device to fabricate multilayer ultra-thin film are introduced. Employing self-assembly monolayer (SAM) technique, ultra-thin film can be assembled by utilizing the micro-spray-assembly device. The thickness and roughness of each monolayer can be controlled by varying various materials attributes, i.e., deposition time, ionic strength, pH value, molecular concentration and by selecting different manufacturing parameters of the automatic device such as spraying rate, size of micro-drop, N2 flow rate, temperature of N2 flow.
Industrial application of thermal image processing and thermal control
Publisher: SPIE
Date: 18-09-2001
DOI: 10.1117/12.440280
Development of chitosan nanoparticles as drug delivery systems for 5-fluorouracil and leucovorin blends
Publisher: Elsevier BV
Date: 06-2011
Selective Removal of Anionic Dyes using Poly (N,N-Dimethyl Amino Ethylmethacrylate) Functionalized Graphene Oxide
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C6RA09049D
Abstract: An in situ polymerization strategy was used to functionalize graphene oxide (GO) with poly( N , N -dimethyl amino ethylmethacrylate) (PDMAEMA) for the selective removal of anionic dyes.
Extrapolative prediction of the hot strength of austenitic steels with a combined constitutive and ANN model
Publisher: Elsevier BV
Date: 05-2000
Scale invariant texture classification via sparse representation
Publisher: Elsevier BV
Date: 12-2013
Solvent crystallization-induced porous polyurethane/graphene composite foams for pressure sensing
Publisher: Elsevier BV
Date: 08-2020
Development of Positioning Jig for Glass Capillary Bending Mechanism
Publisher: IEEE
Date: 12-2006
Plasmonic substrates for surface enhanced Raman scattering
Publisher: Elsevier BV
Date: 09-2017
DOI: 10.1016/J.ACA.2017.06.002
Abstract: As an advanced analytical tool, surface-enhanced Raman scattering (SERS) has broad applications in identification of colorants in paints and glazes, hazard detection to ensure food safety, biomedicine and diagnosis, environmental monitoring, detection of explosives and forensic science. In this review, main types of plasmonic substrates, which include solid substrate with metallic nanostructures and chemically synthesized noble metal colloids, and their fabrication methods are reviewed. The design principles for fabrication of ultrasensitive plasmonic substrates for SERS are presented on the basis of published literature. Finally, various applications of SERS substrates are described, indicating the potential of this technique in practical applications. As an ultrasensitive detection method, SERS is at the core of a rapidly expanding research field.
In Situ SAXS Measurement and Molecular Dynamics Simulation of Magnetic Alignment of Hexagonal LLC Nanostructures
Publisher: MDPI AG
Date: 02-12-2018
Abstract: The alignment of nanostructures in materials such as lyotropic liquid crystal (LLC) templated materials has the potential to significantly improve their performances. However, accurately characterising and quantifying the alignment of such fine structures remains very challenging. In situ small angle X-ray scattering (SAXS) and molecular dynamics were employed for the first time to understand the hexagonal LLC alignment process with magnetic nanoparticles under a magnetic field. The enhanced alignment has been illustrated from the distribution of azimuthal intensity in the s les exposed to magnetic field. Molecular dynamics simulations reveal the relationship between the imposed force of the magnetic nanoparticles under magnetic field and the force transferred to the LLC cylinders which leads to the LLC alignment. The combinational study with experimental measurement and computational simulation will enable the development and control of nanostructures in novel materials for various applications.
Natural rubber nanocomposite reinforced with nano silica
Publisher: Wiley
Date: 09-2008
DOI: 10.1002/PEN.20997
Multi-scale local pattern co-occurrence matrix for textural image classification
Publisher: IEEE
Date: 06-2012
Functionalized polyacrylonitrile fibers with durable antibacterial activity and superior Cu(II)-removal performance
Publisher: Elsevier BV
Date: 04-2020
Omniphobic membranes for distillation: Opportunities and challenges
Publisher: Elsevier BV
Date: 11-2021
Fabrication and properties of elastic fibers from electrospinning natural rubber
Publisher: Wiley
Date: 24-06-2019
DOI: 10.1002/APP.48153
Facile electrochemical anodisation for generating nanopores across visible light-responsive cerium-titanium oxide heterojunctions for environmental remediation
Publisher: Elsevier BV
Date: 10-2023
Measurement of the mass transfer coefficient at workpiece surfaces in heat treatment furnaces
Publisher: Elsevier BV
Date: 2009
Numerical simulation of heat and mass transfer in fluidised bed heat treatment furnaces
Publisher: Elsevier BV
Date: 09-2002
Uptake and cellular distribution, in four plant species, of fluorescently labeled mesoporous silica nanoparticles
Publisher: Springer Science and Business Media LLC
Date: 13-05-2014
DOI: 10.1007/S00299-014-1624-5
Abstract: We report the uptake of MSNs into the roots and their movement to the aerial parts of four plant species and their quantification using fluorescence, TEM and proton-induced x - ray emission (micro - PIXE) elemental analysis. Monodispersed mesoporous silica nanoparticles (MSNs) of optimal size and configuration were synthesized for uptake by plant organs, tissues and cells. These monodispersed nanoparticles have a size of 20 nm with interconnected pores with an approximate diameter of 2.58 nm. There were no negative effects of MSNs on seed germination or when transported to different organs of the four plant species tested in this study. Most importantly, for the first time, a combination of confocal laser scanning microscopy, transmission electron microscopy and proton-induced X-ray emission (micro-PIXE) elemental analysis allowed the location and quantification MSNs in tissues and in cellular and sub-cellular locations. Our results show that MSNs penetrated into the roots via symplastic and apoplastic pathways and then via the conducting tissues of the xylem to the aerial parts of the plants including the stems and leaves. The translocation and widescale distribution of MSNs in plants will enable them to be used as a new delivery means for the transport of different sized biomolecules into plants.
Electrically conductive graphene-filled polymer composites with well organized three-dimensional microstructure
Publisher: Elsevier BV
Date: 04-2014
The growth of high density network of MOF nano-crystals across macroporous metal substrates - Solvothermal synthesis versus rapid thermal deposition
Publisher: Elsevier BV
Date: 2018
Latex dilution reaction during the tapping flow course of Hevea brasiliensis and the effect of Ethrel stimulation
Publisher: Springer Science and Business Media LLC
Date: 13-01-2015
Isolating motile sperm cell sorting using biocompatible electrospun membranes
Publisher: Springer Science and Business Media LLC
Date: 11-04-2022
DOI: 10.1038/S41598-022-10042-0
Abstract: Motility is an indicator of sperm cell viability due to higher probability in swimming through the female reproductive tract and undergo fertilization with the egg cell. Centrifugation method is a technique to process high volume semen and isolate motile sperm cells but decreases the biochemical integrity of spermatozoa due to the contact with reactive oxygen species (ROS) from dead cells released during centrifugation. This study uses solution electrospun poly(ε-caprolactone) membranes as an alternative in isolating motile spermatozoa by utilizing a rationally designed 3D printed module set up, providing the same benefits as commercially available techniques with minimal processing time, and bypassing the centrifugation step to provide higher quality sperm cells. The membranes, with nominal pore size distributions ranging from 5 to 6 µm are highly porous structures suitable for establishing baseline data for sperm cell sorting by motility. The proposed method allows for isolation of motile sperm cells with 74% purity, while decreasing the processing time by 98% when compared to centrifugation techniques. This novel approach provides a facile method for isolating motile spermatozoa directly from frozen semen s les without any pretreatments and is easily scalable for small and medium scale farms as well as larger industries.
Modified iron phosphate/polyvinyl alcohol composite film for controlled-release fertilisers
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8RA01843J
Abstract: A new concept of citric acid-stimulus P fertiliser via incorporation of ferric phosphate as P source in polyvinyl alcohol films.
High Efficiency Poly(acrylonitrile) Electrospun Nanofiber Membranes for Airborne Nanomaterials Filtration
Publisher: Wiley
Date: 29-08-2018
The application of self-assembly monolayer technique into fabricating multilayer nanofilm
Publisher: World Scientific Pub Co Pte Lt
Date: 08-2004
DOI: 10.1142/S0219581X04002486
Abstract: Self-Assembly Monolayer (SAM) technique, as a novel and developing technique for fabricating layer-by-layer nanofilm on substrates of various sizes, shapes and materials, has received more and more attention in the areas of light-emitting devices, nonlinear optical materials, conductive films, permselective gas membranes, sensors, modification of electrodes, resistance and printing technique. In comparison with other traditional methods, SAM technique has many significant advantages, including simple process, universality, formation with densely packed, well defined, highly ordered surfaces. This paper will give a review on the recent development in SAM technique.
Homogeneous isolation of nanocelluloses by controlling the shearing force and pressure in microenvironment
Publisher: Elsevier BV
Date: 11-2014
DOI: 10.1016/J.CARBPOL.2014.06.085
Abstract: Nanocelluloses were prepared from sugarcane bagasse celluloses by dynamic high pressure microfluidization (DHPM), aiming at achieving a homogeneous isolation through the controlling of shearing force and pressure within a microenvironment. In the DHPM process, the homogeneous cellulose solution passed through chambers at a higher pressure in fewer cycles, compared with the high pressure homogenization (HPH) process. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) demonstrated that entangled network structures of celluloses were well dispersed in the microenvironment, which provided proper shearing forces and pressure to fracture the hydrogen bonds. Gel permeation chromatography (GPC), CP/MAS (13)C NMR and Fourier transform infrared spectroscopy (FT-IR) measurements suggested that intra-molecular hydrogen bonds were maintained. These nanocelluloses of smaller particle size, good dispersion and lower thermal stability will have great potential to be applied in electronics devices, electrochemistry, medicine, and package and printing industry.
CFD modeling of hydrodynamic characteristics of slug bubble flow in a flat sheet membrane bioreactor
Publisher: Elsevier BV
Date: 10-2013
Green Fabrication of Agglomeration-Reductive and Electrochemical-Active Reduced Graphene Oxide/Polymerized Proanthocyanidins Electrode for High-Performance Supercapacitor
Publisher: American Chemical Society (ACS)
Date: 09-01-2023
Proton-Exchange-Induced Configuration Rearrangement in a Poly(ionic liquid) Solution: A NMR Study
Publisher: American Chemical Society (ACS)
Date: 20-10-2017
DOI: 10.1021/ACS.JPCLETT.7B02439
Abstract: Polymeric ionic liquids have emerged recently as a promising alternative to traditional polymers as the polymer electrolyte membrane materials of choice because of their strongly decoupled dynamics between the polymer backbone and the counterions. Knowledge of proton exchange and transport mechanism in such materials is critical to the design and development of new poly(ionic liquid) materials with improved electrochemical properties. Our NMR results show that the proton exchange between the labile proton of the diethylmethylammonium (NH122) cation and H
Qualitative spectroscopic characterization of the matrix-silane coupling agent interface across metal fibre reinforced ion exchange resin composite membranes
Publisher: Elsevier BV
Date: 11-2014
Fabrication of Pd-TiO2 nanotube photoactive junctions via Atomic Layer Deposition for persistent pesticide pollutants degradation
Publisher: Elsevier BV
Date: 07-2019
Controlled porosity and pore size of nano-porous gold by thermally assisted chemical dealloying - a SAXS study
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6RA28423J
Abstract: Nano-porous metals offer great potential for applications such as bio-sensors, chemical reactors, platforms for cell growth, and media for separation because of their high surface area and reactivity at the nanoscale.
Mixed Matrix Poly(Vinyl Alcohol)-Copper Nanofibrous Anti-Microbial Air-Microfilters
Publisher: MDPI AG
Date: 17-07-2019
Abstract: Membranes decorated with biocide materials have shown great potential for air sanitization but can suffer from biocide agent leaching by dissolution in water. In order to tackle the diffusion of biocide metal ions from the fiber matrix, composite nanofiber membranes of poly(vinyl alcohol) (PVA) cross-linked with copper (II) acetate have been successfully engineered via sol–gel electrospinning, providing a stable mean for air bactericidal microfiltration. The novelty lies in the bonding strength and homogeneous distribution of the fiber surface biocide, where biocide metals are incorporated as a sol within a polymer matrix. The electrospinning of bead-free composite nanofibers offered over 99.5% filtration efficiency for PM2.5, with a theoretical permeance above 98%. The PVA/copper nanofiber membranes also showed satisfactory anti-bacterial performance against the gram-negative Escherichia coli within 24 h, making them promising materials for the remediation of airborne bacteria. The mechanical and chemical stability of the engineered nanocomposite electrospun nanofiber webs added to the natural biodegradability of the materials, by offering ideal low-cost sanitary solutions for the application of air disinfection in both indoor and outdoor fitting a circular economy strategy where advanced materials are redesigned to be sustainable.
Influence of the geometry of an immersed steel workpiece on mass transfer coefficient in a chemical heat treatment fluidised bed
Publisher: Iron and Steel Institute of Japan
Date: 2004
Fabrication of Meso-Porous Sintered Metal Thin Films by Selective Etching of Silica Based Sacrificial Template
Publisher: MDPI AG
Date: 04-08-2014
DOI: 10.3390/NANO4030686
Prediction of hot strength of steels with advanced models
Publisher: Trans Tech Publications, Ltd.
Date: 2003
Directional Gaussian Filter-based LBP Descriptor For Textural Image Classification
Publisher: Elsevier BV
Date: 2011
Physichemical property and morphology of 5-fluorouracil loaded chitosan nanoparticles
Publisher: IEEE
Date: 02-2010
Research on Battery Box Lightweight Based on Material Replacement
Publisher: Atlantis Press
Date: 2017
Experimental investigation and numerical simulation of heat transfer in quenching fluidised beds
Publisher: Inderscience Publishers
Date: 2005
Multi-Functional Core-Shell Nanofibers for Wound Healing
Publisher: MDPI AG
Date: 11-06-2021
DOI: 10.3390/NANO11061546
Abstract: Core-shell nanofibers have great potential for bio-medical applications such as wound healing dressings where multiple drugs and growth factors are expected to be delivered at different healing phases. Compared to monoaxial nanofibers, core-shell nanofibers can control the drug release profile easier, providing sustainable and effective drugs and growth factors for wound healing. However, it is challenging to produce core-shell structured nanofibers with a high production rate at low energy consumption. Co-axial centrifugal spinning is an alternative method to address the above limitations to produce core-shell nanofibers effectively. In this study, a co-axial centrifugal spinning device was designed and assembled to produce core-shell nanofibers for controlling the release rate of ibuprofen and hEGF in inflammation and proliferation phases during the wound healing process. Core-shell structured nanofibers were confirmed by TEM. This work demonstrated that the co-axial centrifugal spinning is a high productivity process that can produce materials with a 3D environment mimicking natural tissue scaffold, and the specific drug can be loaded into different layers to control the drug release rate to improve the drug efficiency and promote wound healing.
Stimulation of photosynthesis and enhancement of growth and yield in Arabidopsis thaliana treated with amine-functionalized mesoporous silica nanoparticles
Publisher: Elsevier BV
Date: 11-2020
Regulation of HbPIP2;3, a Latex-Abundant Water Transporter, Is Associated with Latex Dilution and Yield in the Rubber Tree (Hevea brasiliensis Muell. Arg.)
Publisher: Public Library of Science (PLoS)
Date: 30-04-2015
Natural rubber/multiwalled carbon nanotube composites developed with a combined self-assembly and latex compounding technique
Publisher: Wiley
Date: 29-02-2012
DOI: 10.1002/APP.36389
The fabrication and surface functionalization of porous metal frameworks-a review
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3TA13240D
Waste-derived carbon fiber membrane with hierarchical structures for enhanced oil-in-water emulsion separation: Performance and mechanisms
Publisher: Elsevier BV
Date: 07-2022
Microstructure features and carbon partitioning in low temperature bainitic steels: The effect of magnetic field
Publisher: Elsevier BV
Date: 02-2023
A head mountable deep brain stimulation device for laboratory animals
Publisher: Springer Berlin Heidelberg
Date: 2011
Catalytic electrospun nano-composite membranes for virus capture and remediation
Publisher: Elsevier BV
Date: 12-2019
Microencapsulation of nanoparticles with enhanced drug loading for pH-sensitive oral drug delivery for the treatment of colon cancer
Publisher: Wiley
Date: 26-11-2013
DOI: 10.1002/APP.38582
Preliminary Numerical Modelling of Non-Newtonian Fluid Behaviour Under Surface Microwaves
Publisher: ASMEDC
Date: 2006
Abstract: This paper presents the numerical simulation of a non-Newtonian fluid under the effect of moving sinusoidal surface micro waves generated by a micro actuator. The blood is used as the fluid in the simulation, which is confined between the actuator and the substrate, within a channel of 20 micron high. The simulation was solved using the finite element method by utilizing the commercially available software ANSYS. A mathematical model is developed to convert the non-Newtonian fluid to equivalent Newtonian fluid to estimate the traction force. The results show that a stable thrust force is generated by the moving sinusoidal waves. The magnitude of the thrust force is increasing while the fluid viscosity and the wave frequency are increasing. The results also show that the thrust force is highly predictable and controllable. A surface thrust force of 19.71 micro-Newton per centimetre for the frequency of 1 kilohertz can be obtained in blood by using an actuator of one millimeter diameter. The direction of the force can be changed by changing the wave propagation direction.
Computational Investigation of a Non-Newtonian Fluid Flow in a Microchannel Using Surface Micro Waves
Publisher: ASMEDC
Date: 2006
Abstract: One of the methods of transporting fluid in microchannels without employing high voltage or syringe pump is the surface micro waves. The micro surface waves are able to move the fluids in the channels in the direction of wave propagation. In this study, computational investigations are made to analyse the behaviour of a Non-Newtonian fluid flow under the surface micro wave in a square microchannel. The analysis is restricted to 5 wave lengths due to the constraints in the computation for longer wave lengths. The results show that surface waves are able to make the fluid flow in the direction of the wave propagation. By altering the wave parameters, the mass flow rate of the fluid can be increased or reduced in real time. However, there are several observations that need to be taken into consideration in using the surface waves as mean for fluid flow in microchannels (not clear here). Pressure and velocity difference across the cross section of the microchannels might cause flow instabilities which might affect the intended use of the system.
Thermal properties and morphology of a poly(vinyl alcohol)/silica nanocomposite prepared with a self-assembled monolayer technique
Publisher: Wiley
Date: 17-03-2005
DOI: 10.1002/APP.21583
Ultrasound-assisted tapping of latex from Para rubber tree Hevea brasiliensis
Publisher: Elsevier BV
Date: 10-2013
Self-assembled natural rubber/multi-walled carbon nanotube composites using latex compounding techniques
Publisher: Elsevier BV
Date: 12-2010
Composite Yarns Fabricated From Continuous Needleless Electrospun Nanofibers
Publisher: Wiley
Date: 10-07-2014
DOI: 10.1002/PEN.23690
Plasmon-induced long-lived hot electrons in degenerately doped molybdenum oxides for visible-light-driven photochemical reactions
Publisher: Elsevier BV
Date: 05-2022
Poly(vinyl alcohol)/Silica nanocomposites: Morphology and thermal degradation kinetics
Publisher: American Scientific Publishers
Date: 12-2006
DOI: 10.1166/JNN.2006.666
Abstract: The morphology of self-assembled poly(vinyl alcohol)/silica (PVA/SiO2) nanocomposites is investigated with atomic force microscopy (AFM) and transmission electron microscopy (TEM). It is found that the SiO2 nanoparticles are homogenously distributed throughout the PVA matrix in a form of spherical nano-cluster. The average size of the SiO2 clusters is below 50 nm at the low contents (SiO2 < or =5 5 wt%), while particle aggregations are clearly observed and their average size markedly increases to 110 nm when 10 wt% SiO2 is loaded. The thermogravimetric analysis (TGA) shows that the nanocomposite significantly outperforms the pure PVA in the thermal resistance. By using a multi-heating-rate method, the thermal degradation kinetics of the nanocomposite with a SiO2 content of 5 wt% is compared to the PVA host. The reaction activation energy (E) of the nanocomposite, similar to the pure PVA, is ided into two main stages corresponding to two degradation steps. However, at a given degradation temperature, the nanocomposite presents much lower reaction velocity constants (k), while its E is 20 kJ/mol higher than that of the PVA host.
Mesoporous silica nanoparticles enhance seedling growth and photosynthesis in wheat and lupin
Publisher: Elsevier BV
Date: 06-2016
DOI: 10.1016/J.CHEMOSPHERE.2016.02.096
Abstract: The application of mesoporous silica nanoparticles (MSNs) as a smart delivery system to agricultural crops is gaining attention but the release of nanoparticles into the environment may pose a potential threat to biological systems. We investigated the effects of MSNs on the growth and development of wheat and lupin plants grown under controlled conditions. We report a dramatic increase in the growth of wheat and lupin plants exposed to MSNs. We also found that, in leaves, MSNs localised to chloroplasts and that photosynthetic activity was significantly increased. In addition, absorption and cellular distribution of MSNs by the two plant species following root uptake were observed using scanning electron microscopy equipped with energy dispersive spectroscopy (SEM-EDS). Following uptake of MSNs at 500 and 1000 mg L(-1), there was enhancement of seed germination, increased plant biomass, total protein and chlorophyll content. Treatment of both species with MSNs at the highest concentration (2000 mg L(-1)) did not result in oxidative stress or cell membrane damage. These findings show that MSNs can be used as novel delivery systems in plants and that over the range of concentrations tested, MSNs do not have any negative impacts on plant growth or development.
Durable and comfortable electrospun nanofiber membranes for face mask applications
Publisher: Elsevier BV
Date: 10-2023
Lyotropic Liquid Crystal (LLC)-Templated Nanofiltration Membranes by Precisely Administering LLC/Substrate Interfacial Structure
Publisher: MDPI AG
Date: 24-05-2023
DOI: 10.3390/MEMBRANES13060549
Abstract: Mesoporous materials based on lyotropic liquid crystal templates with precisely defined and flexible nanostructures offer an alluring solution to the age-old challenge of water scarcity. In contrast, polyamide (PA)-based thin-film composite (TFC) membranes have long been hailed as the state of the art in desalination. They grapple with a common trade-off between permeability and selectivity. However, the tides are turning as these novel materials, with pore sizes ranging from 0.2 to 5 nm, take center stage as highly coveted active layers in TFC membranes. With the ability to regulate water transport and influence the formation of the active layer, the middle porous substrate of TFC membranes becomes an essential player in unlocking their true potential. This review delves deep into the recent advancements in fabricating active layers using lyotropic liquid crystal templates on porous substrates. It meticulously analyzes the retention of the liquid crystal phase structure, explores the membrane fabrication processes, and evaluates the water filtration performance. Additionally, it presents an exhaustive comparison between the effects of substrates on both polyamide and lyotropic liquid crystal template top layer-based TFC membranes, covering crucial aspects such as surface pore structures, hydrophilicity, and heterogeneity. To push the boundaries even further, the review explores a erse array of promising strategies for surface modification and interlayer introduction, all aimed at achieving an ideal substrate surface design. Moreover, it delves into the realm of cutting-edge techniques for detecting and unraveling the intricate interfacial structures between the lyotropic liquid crystal and the substrate. This review is a passport to unravel the enigmatic world of lyotropic liquid crystal-templated TFC membranes and their transformative role in global water challenges.
The application of Cd Se/ZnS quantum dots and confocal laser scanning microscopy for three-dimensional imaging of nanofibrous structures
Publisher: SAGE Publications
Date: 30-10-2014
Abstract: This paper reports a fast, accurate, and non-destructive three-dimensional imaging approach based on using quantum dots and confocal laser scanning microscopy to get three-dimensional images of internal pore structure of the nanofibrous materials. A practical method of making the fiber fluorescent using quantum dots was applied before three-dimensional imaging by confocal laser scanning microscopy. Fibrous scaffolds with different porosity parameters produced by electrospinning and their three-dimensional pore structure was evaluated by this approach. Furthermore, the introduced approach can be used to measure the pore interconnectivity of the scaffold.
Particle dynamics and heat transfer at workpiece surface in heat treatment fluidised beds
Publisher: Trans Tech Publications, Ltd.
Date: 06-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.264-265.1456
Abstract: The particle behaviour in a heat treatment fluidised bed was studied by the analysis of particle images taken with a high speed CCD digital video camera. The comparison of particle dynamics was performed for the fluidised beds without part, with single part and with multi-parts. The results show that there are significant differences in particle behaviours both in different beds and at different locations of part surfaces. The total and radiative heat transfer coefficients at different surfaces of a metallic part in a fluidised bed were measured by a heat transfer probe developed in the present work. The structure of the probe was optimized with numerical simulation of energy conservation for measuring the heat transfer coefficient of 150-600 W/m2K. The relationship between the particle dynamics and the heat transfer was analysed to form the basis for future more rational designs of fluidised beds as well as for improved quality control.
Development of drug-loaded chitosan-vanillin nanoparticles and its cytotoxicity against HT-29 cells
Publisher: Informa UK Limited
Date: 09-04-2016
DOI: 10.3109/10717544.2014.900590
Abstract: Chitosan as a natural polysaccharide derived from chitin of arthropods like shrimp and crab, attracts much interest due to its inherent properties, especially for application in biomedical materials. Presently, biodegradable and biocompatible chitosan nanoparticles are attractive for drug delivery. However, some physicochemical characteristics of chitosan nanoparticles still need to be further improved in practice. In this work, chitosan nanoparticles were produced by crosslinking chitosan with 3-methoxy-4-hydroxybenzaldehyde (vanillin) through a Schiff reaction. Chitosan nanoparticles were 200-250 nm in diameter with smooth surface and were negatively charged with a zeta potential of - 17.4 mV in neutral solution. Efficient drug loading and drug encapsulation were achieved using 5-fluorouracil as a model of hydrophilic drug. Drug release from the nanoparticles was constant and controllable. The in vitro cytotoxicity against HT-29 cells and cellular uptake of the chitosan nanoparticles were evaluated by methyl thiazolyl tetrazolium method, confocal laser scanning microscope and flow cytometer, respectively. The results indicate that the chitosan nanoparticles crosslinked with vanillin are a promising vehicle for the delivery of anticancer drugs.
Secondary Flow in a Strong Curved Converging Channel
Publisher: Emerald
Date: 08-2005
DOI: 10.1108/RJTA-09-03-2005-B009
Abstract: A three-dimensional model is developed to evaluate the effect of secondary flow generated from strongly bent duct profiles and turbulent flow of high Reynolds number on fibre movement in a bent channel. The fibre configuration is more complex in a three-dimensional model with the introduction of secondary flow. The strategies of mesh generation for threedimensional problems are discussed. The flow characteristic in the transfer-channel of a rotor spinning machine is predicted.
Aptamer-guided extracellular vesicle theranostics in oncology.
Publisher: Ivyspring International Publisher
Date: 2020
DOI: 10.7150/THNO.39706
A CFD-aided experimental study on bending of micro glass pipettes
Publisher: Springer Science and Business Media LLC
Date: 10-2007
DOI: 10.1007/BF03177363
Atomically Thin Boron Nitride as an Ideal Spacer for Metal-Enhanced Fluorescence
Publisher: American Chemical Society (ACS)
Date: 02-10-2019
Abstract: Metal-enhanced fluorescence (MEF) considerably enhances the luminescence for various applications, but its performance largely depends on the dielectric spacer between the fluorophore and plasmonic system. It is still challenging to produce a defect-free spacer having an optimized thickness with a sub-nanometer accuracy that enables reusability without affecting the enhancement. In this study, we demonstrate the use of atomically thin hexagonal boron nitride (BN) as an ideal MEF spacer owing to its multifold advantages over the traditional dielectric thin films. With rhodamine 6G as a representative fluorophore, it largely improves the enhancement factor (up to ∼95 ± 5), sensitivity (10
Mechanism of porosity development and defect engineering in chemically activated woven carbon fibres
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3NJ01999C
Abstract: The pore deepening and defect-engineering of carbon fibres by introducing the chemical activation agent, KOH etchant.
Development of Ligand Incorporated Chitosan Nanoparticles for the Selective Delivery of 5-Fluorouracil to Colon
Publisher: Trans Tech Publications, Ltd.
Date: 02-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.197-198.238
Abstract: Drug delivery systems with active targeting ligand provide improved therapeutic efficiency due to the selectivity towards tumor cells. In this paper we prepared drug loaded nanoparticles (NPs) using folate (FA) incorporated chitosan (FA-CS) based on ionic gelation technology. FA-CS NPs were spherical in shape with an average particle size of 100 nm, while 5-fluorouracil (5-FU) loaded NPs became less circular with average particle size of 100-500 nm. NPs made from FA-CS conjugates exhibited improved capability to encapsulate hydrophilic 5-FU. It was found 5-FU distributed in FA-CS NPs in solid solution state. In vitro release results demonstrated the release of 5-FU from FA-CS NPs was more controllable as compared to that of CS NPs.
Insights into Free Volume Variations across Ion-Exchange Membranes upon Mixed Solvents Uptake by Small and Ultrasmall Angle Neutron Scattering
Publisher: American Chemical Society (ACS)
Date: 02-03-2017
Abstract: Ion-exchange membranes are composite separation materials increasingly used in a variety of electro-membranes and electrochemical processes. Although promising for solvent reclamation, to date, their main applications are limited to aqueous environments due to physicochemical and microstructural changes of the materials upon exposure to nonaqueous and mixed solvents solutions, affecting long-term stability and separation performance. In the present work, the structural changes of commercial and novel hybrid ion-exchange membranes in mixed methanol/water and ethanol/water solutions are assessed for the first time using ultra- and small-angle neutron scattering techniques. The interface between the ion-exchange functional layer and the mechanical support of the membranes is evaluated in the ultralow-q region, while a broad solvent-dependent peak at the mid-q region was correlated to the microstructural properties which are related to the free volume across the ion-exchange domains and to the materials electrical and nanoscale mechanical properties. The results of this study may offer new opportunities toward the development of an efficient separation process using ion-exchange membranes for the purification of fermentation broths toward biofuel generation.
Towards a high-flux separation layer from hexagonal lyotropic liquid crystals for thin-film composite membranes
Publisher: MDPI AG
Date: 29-10-2021
DOI: 10.3390/MEMBRANES11110842
Abstract: Hexagonal lyotropic liquid crystals (HLLC) with uniform pore size in the range of 1~5 nm are highly sought after as promising active separation layers of thin-film composite (TFC) membranes, which have been confirmed to be efficient for water purification. The potential interaction between an hiphile-based HLLC layer and the substrate surface, however, has not been fully explored. In this research, hydrophilic and hydrophobic microporous polyvinylidene fluoride (PVDF) substrates were chosen, respectively, to prepare TFC membranes with the active layers templated from HLLC, consisting of dodecyl trimethylammonium bromide, water, and a mixture of poly (ethylene glycol) diacrylate and 2-hydroxyethyl methacrylate. The pore size of the active layer was found to decrease by about 1.6 Å compared to that of the free-standing HLLC after polymerization, but no significant difference was observable by using either hydrophilic or hydrophobic substrates (26.9 Å vs. 27.1 Å). The water flux of the TFC membrane with the hydrophobic substrate, however, was higher than that with the hydrophilic one. A further investigation confirmed that the increase in water flux originated from a much higher porosity was due to the synergistic effect of the hydrophilic HLLC nanoporous material and the hydrophobic substrate.
Constructing novel nanofibrous polyacrylonitrile (PAN)-based anion exchange membrane adsorber for protein separation
Publisher: Elsevier BV
Date: 03-2022
Objective Measurement of Wool Fibre Finess Using 2-D Gabor Filter
Publisher: Emerald
Date: 08-2005
DOI: 10.1108/RJTA-09-03-2005-B004
Abstract: There is a huge demand for objective on-farm techniques, which would enable identification of the ‘outliers’ of sheep for the purpose of breeding selection, reducing the fineness (or diameter) of woolgrowers’ flocks with greater confidence, and maintaining the uniform quality throughout the wool clips. In this study, the concept of texture analysis based on Gabor filtering is employed and textural features are extracted from the images of wool staples with different fineness. It is justified by the experiments that those textural features are rotation invariant and also sensitive to the fineness of wool staples and efficient in discrimination of wool staples with different fineness. Since it requires minimum manual operations, this approach has a great potential to be applied on farm or in shearing shed.
Real-time measurement of phloem turgor pressure in Hevea brasiliensis with a modified cell pressure probe
Publisher: Springer Science and Business Media LLC
Date: 03-02-2014
Material properties under drawing and extrusion with cyclic torsion
Publisher: Elsevier BV
Date: 06-2001
An in-situ small angle x ray scattering analysis of nanopore formation during thermally induced chemical dealloying of brass thin foils
Publisher: Springer Science and Business Media LLC
Date: 18-10-2018
DOI: 10.1038/S41598-018-33787-Z
Abstract: The development of non-noble nano-porous metal materials is hindered by surface oxidation reactions and from the difficulty to generate long range order pore arrays. Dealloying is a promising route to generate such materials by selective chemical etching of metal alloy materials. This process can generate nano-metal materials with superior plasmonic, catalytic and adsorptive surface properties. Here, the impact of properties of the etching solution on the dealloying process to generate nano-pores across thin film alloys was investigated by in-situ SAXS dealloying experiments. Single phase CuZn alloys were used as model materials to evaluate the influence of the solution temperature on the pore formation kinetics. This novel analysis allowed to visualize the change in surface properties of the materials over time, including their surface area as well as their pore and ligament sizes. The dealloying kinetics at the very early stage of the process were found to be critical to both stable pore formation and stabilization. SAXS in-situ data were correlated to the morphological properties of the materials obtained from ex-situ s les by Rutherford back scattering and scanning electron microscopy.
Experimental verification of theoretical prediction of fiber to fiber contacts in electrospun multilayer nano-microfibrous assemblies: Effect of fiber diameter and network porosity
Publisher: SAGE Publications
Date: 30-10-2014
Abstract: Average number of fiber-to-fiber contacts in a fibrous structure is a prerequisite to investigate the mechanical, optical and transport properties of stochastic nano-microfibrous networks. In this research work, based on theoretical analysis presented for the estimation of the number of contacts between fibers in electrospun random multilayer nanofibrous assembles, experimental verification for theoretical dependence of fiber diameter and network porosity on the fiber to fiber contacts has been provided. The analytical model formulated is compared with the existing theories to predict the average number of fiber contacts of nanofiber structures. The effect of fiber diameters and network porosities on average number of fiber contacts of nano-microfiber mats has been investigated. A comparison is also made between the experimental and theoretical number of inter-fiber contacts of multilayer electrospun random nano-microfibrous networks. It has been found that both the fiber diameter and the network porosity have significant effects on the properties of fiber-to-fiber contacts.
Integrated optimization system for high pressure die casting processes
Publisher: Elsevier BV
Date: 05-2008
Functionalization of polyvinyl alcohol hydrogels with graphene oxide for potential dye removal
Publisher: Wiley
Date: 05-09-2014
DOI: 10.1002/APP.39872
Micro- and nano-characterization of membrane materials
Publisher: Elsevier BV
Date: 07-2008
Novel Ultrathin Nanoflake Assembled Porous MnO2/Carbon Strip Microspheres for Superior Pseudocapacitors
Publisher: American Chemical Society (ACS)
Date: 19-08-2014
DOI: 10.1021/SC500379A
New insight into non-isothermal crystallization of PVA-graphene composites
Publisher: Royal Society of Chemistry (RSC)
Date: 05-09-2014
DOI: 10.1039/C4CP03613A
Abstract: The melt crystallization of poly(vinyl alcohol) (PVA) and PVA composites has been a controversial subject due to inconclusive evidence and different opinions for its decomposition during crystallization. Using graphene as a model, the melt crystallization of PVA and PVA-graphene composites occurring during single-cycle and multiple-cycle non-isothermal annealing processes was systematically analyzed using different characterization techniques. The results obtained using single-cycle non-isothermal annealing indicated that the entire crystallization process took place through two main stages. The graphene in the PVA matrix regulates the nucleation and crystal growth manner of the PVA, yet resulting in retardation of the entire crystallization. The FTIR and Raman spectroscopic results particularly demonstrated that the annealing process not only improved the crystallinity but also led to clear decomposition in PVA and PVA-graphene composites, such as the elimination of hydroxyl groups and the production of C=C double bonds. The newly produced C=C double bonds were found to be responsible for the retardation of PVA macromolecule crystallization and the breaking of hydrogen bonds among the hydroxyl groups in the PVA chains. In addition, the morphological observation and multi-cycle non-isothermal crystallization further confirmed the existence of decomposition based on the surface damage as well as decreased crystallization enthalpy and crystallization peak temperature. Therefore, the non-isothermal crystallizations of the pure PVA and the PVA-graphene composites were in fact the combination of non-isothermal crystallization and non-isothermal degradation processes.
Insights into Surface Interactions between Metal Organic Frameworks and Gases during Transient Adsorption and Diffusion by In-Situ Small Angle X-ray Scattering
Publisher: MDPI AG
Date: 03-09-2016
Abstract: The fabrication of molecular gas sieving materials with specific affinities for a single gas species and able to store large quantities of materials at a low or atmospheric pressure is desperately required to reduce the adverse effects of coal and oil usage in carbon capture. Fundamental understanding of the dynamic adsorption of gas, the diffusion mechanisms across thin film membranes, and the impact of interfaces play a vital role in developing these materials. In this work, single gas permeation tests across micro-porous membrane materials, based on metal organic framework crystals grown on the surface of carbon nanotubes (ZiF-8@CNT), were performed for the first time in-situ at the Australian Synchrotron on the small angle X-ray scattering beamline in order to reveal molecular sieving mechanisms and gas adsorption within the material. The results show that specific chemi-sorption of CO2 across the ZiF-8 crystal lattices affected the morphology and unit cell parameters, while the sieving of other noble or noble like gases across the ZiF-8@CNT membranes was found to largely follow Knudsen diffusion. This work demonstrates for the first time a novel and effective technique to assess molecular diffusion at the nano-scale across sub-nano-porous materials by probing molecular flexibility across crystal lattice and single cell units.
Non-isothermal crystallisation kinetics of self-assembled polyvinylalcohol/silica nano-composite
Publisher: Elsevier BV
Date: 02-2005
Enhanced Visible Light Sensitization of N-Doped TiO2 Nanotubes Containing Ti-Oxynitride Species Fabricated via Electrochemical Anodization of Titanium Nitride
Publisher: American Chemical Society (ACS)
Date: 18-12-2019
FEM Simulation of Torsion Tests for Pre-Deformed Lead with Work-Softening
Publisher: Trans Tech Publications, Ltd.
Date: 04-2000
Inorganic Nanoparticles/Metal Organic Framework Hybrid Membrane Reactors for Efficient Photocatalytic Conversion of CO2
Publisher: American Chemical Society (ACS)
Date: 29-09-2017
Abstract: Photocatalytic conversion of carbon dioxide (CO
Study on LiFe1-xSmxPO4/C used as cathode materials for lithium-ion batteries with low Sm component
Publisher: Springer Science and Business Media LLC
Date: 27-02-2015
Engineering Schottky-like and heterojunction materials for enhanced photocatalysis performance – a review
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D1MA01062J
Abstract: Photocatalysis with nanostructured semiconductors is emerging for environmental remediation.
Theoretical investigation of heat and moisture transfer through porous textile materials
Publisher: Emerald
Date: 02-2004
DOI: 10.1108/RJTA-04-01-2000-B004
Abstract: The phenomenon of heat and moisture transport through porous textile media is a natural problem encountered in real life and has been studied over years by many researchers. However, since the flow rate of moisture diffusing through a clothing fabric is too small to be measured directly, the measurement is usually indirect and the interaction between thermal and moisture transport is not considered. A mathematical model was introduced in this study to describe the moisture migration and thermal transport through porous textile materials to evaluate the thermal clothing comfort and the interaction between heat and moisture transportation. Heat and mass transportation parameters and the distribution of moisture and temperature within porous textiles are mathematically derived based on the energy and moisture conservation equations during the transportation. In addition, an experimental principle is established to simultaneously measure four moisture and thermal coefficients introduced in this study.
Development of constitutive models for metal forming with cyclic strain softening
Publisher: Elsevier BV
Date: 05-1999
Development of a contact probe incorporating a Bragg grating strain sensor for nano coordinate measuring machines
Publisher: IOP Publishing
Date: 21-07-2009
Immobilisation of microperoxidase-11 into layered MoO3 for applications of enzymatic conversion
Publisher: Elsevier BV
Date: 09-2019
Nanotechnology and its role in the management of periodontal diseases
Publisher: Wiley
Date: 04-01-2006
Molecular-level dispersion of graphene into epoxidized natural rubber: Morphology, interfacial interaction and mechanical reinforcement
Publisher: Elsevier BV
Date: 12-2014
Formation of defects in the graphite oxidization process: a positron study
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5RA14660G
Abstract: A difference in 2D-DBAR-ratio curves reveals different vacancy-like defects observed by positron measurements in unexfoliated graphite oxide and exfoliated graphene oxide s les.
Evolution of structural dimensions in mesoporous template precursor from hexagonal lyotropic liquid crystals
Publisher: IOP Publishing
Date: 12-11-2020
Electro-catalytic membrane reactors for the degradation of organic pollutants-A review
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1RE00091H
Abstract: Electro-catalytic membrane reactor exhibiting electro-oxidation degradation of organic pollutants on anodic membrane.
Viscoplastic behaviour of porous bronzes and irons
Publisher: Elsevier BV
Date: 06-2001
Die temperature monitoring of high pressure die casting
Publisher: IEEE
Date: 2000
Substrate-Independent, Regenerable Anti-Biofouling Coating for Polymeric Membranes
Publisher: MDPI AG
Date: 13-03-2021
DOI: 10.3390/MEMBRANES11030205
Abstract: Biofouling is a common but significant issue in the membrane process as it reduces permeate flux, increases energy costs, and shortens the life span of membranes. As an effective antibacterial agent, a small amount of silver nanoparticles (AgNPs) immobilized on membrane surfaces will alleviate the membrane from biofouling. However, loading AgNPs on the membrane surface remains a challenge due to the low loading efficiency or the lack of bonding stability between AgNPs and the membrane surface. In this study, a substrate-independent method is reported to immobilize silver nanoparticles on polymeric membrane surfaces by firstly modifying the membrane surface with functional groups and then forming silver nanoparticles in situ. The obtained membranes had good anti-biofouling properties as demonstrated from disk diffusion and anti-biofouling tests. The silver nanoparticles were stably immobilized on the membrane surfaces and easily regenerated. This method is applicable to various polymeric micro-, ultra-, nano-filtration and reverse osmosis (RO) membranes.
Three Dimensional Analysis of Air Flow in a Curved Converging Channel
Publisher: Civil-Comp Press
Date: 2000
DOI: 10.4203/CCP.66.11.5
Nanofiber-Based Materials for Persistent Organic Pollutants in Water Remediation by Adsorption
Publisher: MDPI AG
Date: 24-01-2018
DOI: 10.3390/APP8020166
Tuning the grade of graphene: Gamma ray irradiation of free-standing graphene oxide films in gaseous phase
Publisher: Elsevier BV
Date: 12-2014
A potential application of a piezoelectric atomiser for ophthalmic drug delivery
Publisher: Crossref
Date: 10-07-2007
Numerical investigation of erosion of tube sheet and tubes of a shell and tube heat exchanger
Publisher: Elsevier BV
Date: 2017
Synthesis of single-crystalline LiFePO4 with rhombus-like morphology
Publisher: Springer Science and Business Media LLC
Date: 28-11-2014
Surface modification and properties analysis of shell powder with sodium stearate surface modifier
Publisher: Trans Tech Publications, Ltd.
Date: 04-2014
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.912-914.352
Abstract: In this study, shell powder was modified by sodium stearate surface modifier for improving the compatibility of SP with polymer materials. The surface modifiers influence on the physical and chemical properties of SP were studied by scanning electron microscope (SEM), fourier infrared spectrum (FT-IR), surface contact angle meter, XRD diffraction analysis meter and other modern instruments and analysis method. The results showed that the surface modifier was successfully coupled to the shell powder surface. After surface modifier modification, the interfacial compatibility of the shell powder with polymer materials was effectively improved. The contact angle of shell powder surface increased from 73.5 ° to 110.8 ° , along with the dosage of sodium stearate surface modifier was 4.0%. All results suggested that modified shell powder is promising for using as a reinforcement filler in polymer materials.
Molecular Dynamics Simulation of Heat Transfer during Quenching in CNT Nanofluids
Publisher: ASTM International
Date: 11-09-2014
DOI: 10.1520/MPC20130107
Generative models for automatic recognition of human daily activities from a single triaxial accelerometer
Publisher: IEEE
Date: 06-2012
Homogeneous isolation of nanocellulose from eucalyptus pulp by high pressure homogenization
Publisher: Elsevier BV
Date: 10-2017
Perforation routes towards practical nano-porous graphene and analogous materials engineering
Publisher: Elsevier BV
Date: 12-2019
Structure retention in cross-linked poly(ethylene glycol) diacrylate hydrogel templated from a hexagonal lyotropic liquid crystal by controlling the surface tension
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1SM06526B
Predicting Operating Rules for Successful Melt Electrowriting
Publisher: American Chemical Society (ACS)
Date: 26-03-2021
The combined effects of diet, environment and genetics on pigmentation in the Giant Tiger Prawn, Penaeus monodon
Publisher: Elsevier BV
Date: 12-2015
High Efficiency Fabrication of Chitosan Composite Nanofibers with Uniform Morphology via Centrifugal Spinning
Publisher: MDPI AG
Date: 24-09-2019
Abstract: While electrospinning has been widely employed to spin nanofibers, its low production rate has limited its potential for industrial applications. Comparing with electrospinning, centrifugal spinning technology is a prospective method to fabricate nanofibers with high productivity. In the current study, key parameters of the centrifugal spinning system, including concentration, rotational speed, nozzle diameter and nozzle length, were studied to control fiber diameter. An empirical model was established to determine the final diameters of nanofibers via controlling various parameters of the centrifugal spinning process. The empirical model was validated via fabrication of carboxylated chitosan (CCS) and polyethylene oxide (PEO) composite nanofibers. DSC and TGA illustrated that the thermal properties of CCS/PEO nanofibers were stable, while FTIR-ATR indicated that the chemical structures of CCS and PEO were unchanged during composite fabrication. The empirical model could provide an insight into the fabrication of nanofibers with desired uniform diameters as potential biomedical materials. This study demonstrated that centrifugal spinning could be an alternative method for the fabrication of uniform nanofibers with high yield.
Discrete silver nanoparticle infusion across silica aerogels towards versatile catalytic coatings for 4-nitrophenol reduction
Publisher: Elsevier BV
Date: 02-2019
Reinforcement of natural rubber with core-shell structure silica-poly(Methyl Methacrylate) nanoparticles
Publisher: Hindawi Limited
Date: 2012
DOI: 10.1155/2012/782986
Abstract: A highly performing natural rubber/silica (NR/SiO 2 ) nanocomposite with a SiO 2 loading of 2 wt% was prepared by combining similar dissolve mutually theory with latex compounding techniques. Before polymerization, double bonds were introduced onto the surface of the SiO 2 particles with the silane-coupling agent. The core-shell structure silica-poly(methyl methacrylate), SiO 2 -PMMA, nanoparticles were formed by grafting polymerization of MMA on the surface of the modified SiO 2 particles via in situ emulsion, and then NR/SiO 2 nanocomposite was prepared by blending SiO 2 -PMMA and PMMA-modified NR (NR-PMMA). The Fourier transform infrared spectroscopy results show that PMMA has been successfully introduced onto the surface of SiO 2 , which can be well dispersed in NR matrix and present good interfacial adhesion with NR phase. Compared with those of pure NR, the thermal resistance and tensile properties of NR/SiO 2 nanocomposite are significantly improved.
pH-responsive ultrasonic self-assembly spinosad-loaded nanomicelles and their antifungal activity to Fusarium oxysporum
Publisher: Elsevier BV
Date: 08-2019
Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO2 under UV-light
Publisher: Elsevier BV
Date: 12-2012
DOI: 10.1016/S1001-0742(11)61063-2
Abstract: The effect of nanometer anatase TiO2 was investigated on the photocatalytic degradation of phenanthrene on soil surfaces under a variety of conditions. After being spiked with phenanthrene, soil s les loaded with different amounts of TiO2 (0 wt.%, 1 wt.%, 2 wt.%, 3 wt.%, and 4 wt.%) were exposed to UV-light irradiation for 25 hr. The results indicated that the photocatalytic degradation of phenanthrene followed the pseudo first-order kinetics. TiO2 significantly accelerated the degradation of phenanthrene with the half-life reduced from 45.90 to 31.36 hr for TiO2 loading of 0 wt.% and 4 wt.%, respectively. In addition, the effects of H2O2, light intensity and humic acid on the degradation of phenanthrene were investigated. The degradation of phenanthrene increased with the concentration of H2O2, light intensity and the concentration of humic acids. It has been demonstrated that the photocatalytic method in the presence of nanometer anatase TiO2 was a very promising technology for the treatments of soil polluted with organic substances in the future.
Tuning micro-wrinkled graphene films for stretchable conductors of controllable electrical conductivity
Publisher: Elsevier BV
Date: 11-2018
Cotton yarns decorated with hydrothermally reduced graphene oxide for flexible supercapacitors
Publisher: Elsevier BV
Date: 12-2023
CO 2 sponge from plasma enhanced seeded growth of metal organic frameworks across carbon nanotube bucky-papers
Publisher: Elsevier BV
Date: 2018
Significant roles of substrate properties in forward osmosis membrane performance: A review
Publisher: Elsevier BV
Date: 04-2022
Carbon nanofibre microfiltration membranes tailored by oxygen plasma for electrocatalytic wastewater treatment in cross-flow reactors
Publisher: Elsevier BV
Date: 05-2023
Reinforcement and deformation behaviors of polyvinyl alcohol/graphene/montmorillonite clay composites
Publisher: Elsevier BV
Date: 10-2015
Single step synthesis of Schottky-like hybrid graphene - titania interfaces for efficient photocatalysis
Publisher: Springer Science and Business Media LLC
Date: 25-05-2018
DOI: 10.1038/S41598-018-26447-9
Abstract: The development of 2D nanomaterial coatings across metal surfaces is a challenge due to the mismatch between the metal microstructure and the nanoscale materials. The naturally occurring thin oxidative layer present across all metal surfaces, may lead to low adherence and connectivity. In this paper, graphene/titania/Titanium hybrid films were for the first time fabricated by a single step chemical vapour deposition process across Titanium foils. The presence of graphene as a dopant was found to enhance the photocatalytic performance of the final products, applied to the degradation of organic molecules and to lead to Schottky-like junction formation at the metal/oxide interface. These Schottky junctions, where vacancies are present across the titania material due to the graphene doping and where Ti 3+ ions are predominantly located, yield enhanced catalytic performance. The highest degradation rate was found to be 9.66 × 10 −6 min −1 , achieved by the s le grown at 700 °C for 5 min, which was 62% higher than the s le just treated at that temperature without graphene growth. This work provides evidence that graphene may be grown across pure Titanium metal and opens new avenues in biomedical devices design, tribological or separation applications.
Mesoporous silica nanoparticles as a biomolecule delivery vehicle in plants
Publisher: Springer Science and Business Media LLC
Date: 05-05-2013
Investigation of Nonisothermal Crystallization Behaviors of Poly and Silica Nanocomposites Using Differential Scanning Calorimetry
Publisher: Trans Tech Publications, Ltd.
Date: 10-2005
DOI: 10.4028/WWW.SCIENTIFIC.NET/KEM.295-296.39
Abstract: Nonisothermal crystallization behaviors of PVA and poly (vinyl alcohol) and Silica (PVA/SiO2) nanocomposites prepared via a self-assembly monolayer (SAM) technique are investigated in this study. Differential scanning calorimetry (DSC) is used to measure the crystallization temperature and enthalpy of PVA and nanocomposites in nitrogen at various cooling rate. The results show that the degree of crystallinity of PVA and nanocomposites decreases when the SiO2 content increases but increases with an increasing cooling rate. The peak crystallization temperature decreases with an increasing cooling rate.
Finite element simulation of deformation processes of micro-components
Publisher: Springer Science and Business Media LLC
Date: 10-2007
DOI: 10.1007/BF03177359
Effects of fiber opening on the uniformity of rotor spun yarns
Publisher: SAGE Publications
Date: 1996
DOI: 10.1177/004051759606600105
Abstract: We have studied the dependency of rotor spun yam uniformity on variations of rotor speed, opening roller speed, and twist level. The number of points per fiber (ppf), which reflects the level of fiber opening, is useful in evaluating the effects of spinning parameters on yarn uniformity. Experiments based on a 60 tex yam indicate that the properties of yarn unevenness and incidence of imperfections improve as ppf increases due to improved fiber separation. A critical value of the ppf is identified for CV% values and other measures of imperfections. Beyond this critical value, further increases in the ppf do not lead to any significant improvement in those yam properties. This is due to the high level of fiber breakage at high ppf values.
Characterization of structure and energy of TixCy cluster at early formation stage in iron matrix by molecular dynamics
Publisher: Elsevier BV
Date: 07-2014
Shrinkage induced stretchable micro-wrinkled reduced graphene oxide composite with recoverable conductivity
Publisher: Elsevier BV
Date: 11-2015
Mesoporous silica nanorods toward efficient loading and intracellular delivery of siRNA
Publisher: Springer Science and Business Media LLC
Date: 02-2018
Engineering antifouling reverse osmosis membranes: A review
Publisher: Elsevier BV
Date: 02-2021
Numerical analysis of heat transfer and the optimization of regenerators
Publisher: Informa UK Limited
Date: 02-2006
Study of growth mechanism of TiC cluster in ferrite via molecular dynamics simulation
Publisher: Elsevier BV
Date: 11-2015
Fibre transportation in confined channel with recirculations
Publisher: Elsevier BV
Date: 11-2000
Self-assembled natural rubber/silica nanocomposites: Its preparation and characterization
Publisher: Elsevier BV
Date: 12-2007
Local total and radiative heat-transfer coefficients during the heat treatment of a workpiece in a fluidised bed
Publisher: Elsevier BV
Date: 10-2006
Integral Approach and Numerical Improvement to Calculate Carbon Concentration Profiles in Carburising
Publisher: Trans Tech Publications, Ltd.
Date: 06-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.264-265.1494
Abstract: The carbon diffusion in steel, where the carbon diffusivity varies with the carbon content, was solved with the integral methods under the third boundary condition. The variation of carbon diffusivity in steel with the carbon content was described with two different functions, linear dependence and exponential dependence. The integral approximation for both cases was improved with the numerical computation to more accurately predict the carbon profiles. The integral solution is more accurate than the formulation based on the assumption of a constant diffusivity or those based on the assumption of a constant diffusivity and/or constant carbon content at part surface. It is also more easily used in practice than the numerical method to describe the carburising process and predict the carbon content at steel surface and carbon profiles in treated layer.
Tailored mesoporous silica nanoparticles for controlled drug delivery: platform fabrication, targeted delivery, and computational design and analysis
Publisher: Bentham Science Publishers Ltd.
Date: 11-06-2016
Edible films and coatings for shelf life extension of mango: a review
Publisher: Informa UK Limited
Date: 07-12-2020
DOI: 10.1080/10408398.2020.1853038
Abstract: Edible films and coatings are eco-friendly promising materials for preserving the quality and extending the shelf life of fresh and minimally-processed fruits. They can form protective layers around fruits, regulate their respiration rates, and protect them from loss of water, tissue softening, browning, and microbial contamination. Edible films and coatings have many advantages over other post-harvest treatments. They can add commercial value to fruits by enhancing their appearance, and act as carriers of functional ingredients, such as antioxidants, antimicrobial agents and nutraceuticals. Mango, a highly perishable tropical fruit, has a short post-harvest life, which limits transport to distant markets. Application of edible films and coatings on mango fruits is an effective method to preserve their quality and safety. This paper provides an overview of desirable properties for films and coatings, and recent development in different edible coatings for both fresh and minimally-processed mango. The most popular edible coating materials, such as chitosan, waxes, starch, gums, and cellulose used for mango are reviewed. The commercialization of coating formulations and equipment used for application of coatings are discussed. The environmental impacts, safety aspects, and the challenges encountered are outlined. The opportunities to use other coating materials, such as aloe-vera gel, microbial polysaccharides, and photosynthetic microorganisms are also examined.
Aptamer-mediated survivin RNAi enables 5-fluorouracil to eliminate colorectal cancer stem cells (vol 7, pg 5898, 2017)
Publisher: Springer Science and Business Media LLC
Date: 11-12-2020
DOI: 10.1038/S41598-020-77490-4
Abstract: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Synthesis of LiFePO4@carbon nanotube core-shell nanowires with a high-energy efficient method for superior lithium ion battery cathodes
Publisher: Elsevier BV
Date: 09-2015
Simultaneous crystallization and decomposition of PVA/MMT composites during non-isothermal process
Publisher: Elsevier BV
Date: 10-2015
Computational Simulation of the Influence of Inert Particles on Incomplete Combustion of Methane at a Low Air Factor
Publisher: ASTM International
Date: 09-2012
DOI: 10.1520/MPC104531
Driver verification based on handgrip recognition on steering wheel
Publisher: IEEE
Date: 10-2011
Controlling phase and rheological behaviours of hexagonal lyotropic liquid crystalline templates for nanostructural administration and retention
Publisher: Elsevier BV
Date: 02-2022
Design of a miniature UHF PIFA for DBS implants
Publisher: IEEE
Date: 07-2012
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