ORCID Profile
0000-0001-8832-1164
Current Organisation
Monash 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 | Polymers | Nanomaterials | Nanotechnology | Characterisation Of Macromolecules | Macromolecular and Materials Chemistry | Biomaterials | Materials Engineering Not Elsewhere Classified | Membrane and Separation Technologies | Composite Materials | Functional Materials | Polymers and Plastics | Biomedical Engineering | Synthesis Of Macromolecules | Colloid And Surface Chemistry | Organic Green Chemistry | Ceramics | Pulp And Paper | Physical Chemistry Of Macromolecules | Chemical Characterisation of Materials | Alloy Materials | Timber, Pulp and Paper | Biomaterials | Physical Chemistry (Incl. Structural) | Structural Chemistry | Chemical Spectroscopy | Synthesis of Materials | Manufacturing Engineering Not Elsewhere Classified | Biological Sciences Not Elsewhere Classified | Nanotechnology | Biomedical Engineering Not Elsewhere Classified | Composite and Hybrid Materials | Geology Not Elsewhere Classified | Regenerative Medicine (incl. Stem Cells and Tissue Engineering) | Condensed Matter Physics—Other | Characterisation of Biological Macromolecules | Colloid and Surface Chemistry | Biomechanical Engineering | Environmental Technologies | Nanomedicine | Analytical Chemistry not elsewhere classified | Macromolecular and Materials Chemistry not elsewhere classified | Water Treatment Processes | Nanobiotechnology | Physical Sciences Not Elsewhere Classified | Nanofabrication, Growth and Self Assembly
ANZSRC Socio-Economic Objective (SEO)
Polymeric materials (e.g. paints) | Plastic products (incl. Construction materials) | Expanding Knowledge in Engineering | Organic Industrial Chemicals (excl. Resins, Rubber and Plastics) | Expanding Knowledge in the Chemical Sciences | Chemical sciences | Clinical health not specific to particular organs, diseases and conditions | Fabricated metal products not elsewhere classified | Ceramics | Synthetic resins and rubber | Plastics in primary forms | Other | Paper Products (incl. Coated Paper) | Expanding Knowledge in Technology | Scientific Instruments | Skeletal System and Disorders (incl. Arthritis) | Environmentally Sustainable Manufacturing not elsewhere classified | Other non-ferrous metals (e.g. copper,zinc) | Biological sciences | Earth sciences | Physical sciences | Transformation of Coal into Gaseous Fuels | Ceramics, glass and industrial mineral products not elsewhere classified | Environmentally Sustainable Energy Activities not elsewhere classified | Management of Water Consumption by Manufacturing Activities | Prevention—biologicals (e.g. vaccines) | Manufactured products not elsewhere classified | Paper products | Printing and publishing processes | Instrumentation not elsewhere classified | Structural metal products | Metals (composites, coatings, bonding, etc.) | Other | Environmental policy, legislation and standards not elsewhere classified | Expanding Knowledge in the Medical and Health Sciences | Industrial Energy Conservation and Efficiency | Industrial Instruments | Industrial Chemicals and Related Products not elsewhere classified | Expanding Knowledge in the Physical Sciences | Expanding Knowledge in the Biological Sciences | Pulp and paper | Diagnostics | Machinery and equipment not elsewhere classified |
Related Links
Publications
Changes of proton-enhanced, magic-angle-spinning 13C-NMR dynamic parameters during cure of tetra(ethylene glycol)dimethacrylate
Publisher: Elsevier BV
Date: 1986
A thermally reduced graphene oxide membrane interlayered with anin situsynthesized nanospacer for water desalination
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TA05790H
Abstract: The interlayer nanostructure of two-dimensional lamellar membranes is important with regard to efficient water permeation and purification.
Effect of cationic polyacrylamides on the aggregation and SERS performance of gold nanoparticles-treated paper
Publisher: Elsevier BV
Date: 02-2013
DOI: 10.1016/J.JCIS.2012.09.080
Abstract: This study examines and quantifies the effect of cationic polyelectrolyte adsorption on paper on the aggregation and retention of gold nanoparticles (AuNPs) to optimize their Surface Enhanced Raman Scattering (SERS) enhancement factor and sensitivity. Aggregation of metallic nanoparticles is known as a key factor for intense SERS enhancement. Paper substrates were treated with aqueous solutions of cationic polyacrylamide (CPAM) varying in concentration, charge density, and molecular weight to control the AuNPs' aggregate size distribution and surface coverage on paper. The Raman Enhancement Factor of AuNPs-CPAM paper was almost an order of magnitude greater than for the untreated AuNPs paper. The high loading and uniform distribution of AuNPs aggregates on CPAM pre-treated paper contributed toward the excellent SERS reproducibility, sensitivity, and high enhancement factor. This configuration of AuNP on paper was favoured by treating the substrate with CPAM solutions of higher concentrations, higher charge density, and greater molecular weight.
On the analysis of dielectric relaxation data of poly(ether ether ketone)
Publisher: American Chemical Society (ACS)
Date: 09-1995
DOI: 10.1021/MA00124A046
Volume-invariant ionic liquid microbands as highly durable wearable biomedical sensors
Publisher: Royal Society of Chemistry (RSC)
Date: 2016
DOI: 10.1039/C5MH00284B
Abstract: Non-volatile and flow properties of ionic liquids allow for simple ‘fill and seal’ approach to fabricate high-performance wearable sensors without materials delamination or cracking.
Highly crosslinked, chlorine tolerant polymer network entwined graphene oxide membrane for water desalination
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C6TA07350F
Abstract: A graphene oxide (GO)–polymer nanocomposite membrane was fabricated by integrating GO nanosheets into a highly crosslinked polymer network on a porous polymer substrate for desalination.
Influence of the nanotube oxidation on the rheological and electrical properties of CNT/HDPE composites
Publisher: Author(s)
Date: 2016
DOI: 10.1063/1.4949725
Stimulating Neoblast-Like Cell Proliferation in Juvenile Fasciola hepatica Supports Growth and Progression towards the Adult Phenotype In Vitro
Publisher: Public Library of Science (PLoS)
Date: 13-09-2016
Effect of annealing and pressure on microstructure of cornstarches with different amylose/amylopectin ratios
Publisher: Elsevier BV
Date: 02-2009
DOI: 10.1016/J.CARRES.2008.11.014
Abstract: This work focuses on the effect of annealing and pressure on microstructures of starch, in particular the crystal structure and crystallinity to further explore the mechanisms of annealing and pressure treatment. Cornstarches with different amylose/amylopectin ratios were used as model materials. Since the s les covered both A-type (high amylopectin starch: waxy and maize) and B-type (high amylose starch: G50 and G80) crystals, the results can be used to clarify some previous confusion. The effect of annealing and pressure on the crystallinity and double helices were investigated by X-ray diffraction (XRD) and (13)C CP/MAS NMR spectroscopy. The crystal form of various starches remained unchanged after annealing and pressure treatment. XRD detection showed that the relative crystallinity (RC) of high amylopectin starches was increased slightly after annealing, while the RC of high amylose-rich starches remained unchanged. NMR measurement supported the XRD results. The increase can be explained by the chain relaxation. XRD results also indicated that some of the fixed region in crystallinity was susceptible to outside forces. The effect of annealing and pressure on starch gelatinization temperature and enthalpy are used to explore the mechanisms.
Use of layered silicates to supplementary toughen high performance epoxy-carbon fiber composites
Publisher: Springer Science and Business Media LLC
Date: 2003
Low temperature chemically sintered nano-crystalline TiO2 electrodes for flexible dye-sensitized solar cells
Publisher: No publisher found
Date: 2010
Electrochemically-derived graphene oxide membranes with high stability and superior ionic sieving
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8CC09970G
Abstract: Crosslinker-free electrochemically-derived graphene oxide membranes are found to be extraordinarily stable in aqueous solutions and exhibit superior ionic sieving performance.
Organic and polymer planar optical waveguides
Publisher: Wiley
Date: 1992
A study of the practicality and performance of CFRP applications using post-curing at moderately elevated temperatures
Publisher: Elsevier BV
Date: 05-2013
Evaluation on Effect of Surface Modification on the Adhesion Between Wood and Poly(Lactic Acid)
Publisher: American Scientific Publishers
Date: 08-2012
Thermal properties of liquid crystalline siloxane copolymers and homopolymer blends
Publisher: Elsevier BV
Date: 1993
Effect of compositional gradient on thermal behavior of synthetic graphite–phenolic nanocomposites
Publisher: Springer Science and Business Media LLC
Date: 03-04-2012
Thermal and mechanical characterizations of nanomaterial-modified adhesive used in bonding CFRP to concrete
Publisher: Informa UK Limited
Date: 07-2011
Determination of the prevalence and intensity of Fasciola hepatica infection in dairy cattle from six irrigation regions of Victoria, South-eastern Australia, further identifying significant triclabendazole resistance on three properties
Publisher: Elsevier BV
Date: 2020
Effect of Organic Modification on Multiwalled Carbon Nanotube Dispersions in Highly Concentrated Emulsions
Publisher: American Chemical Society (ACS)
Date: 11-04-2019
CHARACTERIZATION OF MECHANICAL VIBRATION DAMPING BY PIEZOELECTRIC MATERIALS
Publisher: Elsevier BV
Date: 10-1996
Enhanced Mechanical Performance of Bio-Inspired Hybrid Structures Utilising Topological Interlocking Geometry
Publisher: Springer Science and Business Media LLC
Date: 24-05-2016
DOI: 10.1038/SREP26706
Abstract: Structural composites inspired by nacre have emerged as prime exemplars for guiding materials design of fracture-resistant, rigid hybrid materials. The intricate microstructure of nacre, which combines a hard majority phase with a small fraction of a soft phase, achieves superior mechanical properties compared to its constituents and has generated much interest. However, replicating the hierarchical microstructure of nacre is very challenging, not to mention improving it. In this article, we propose to alter the geometry of the hard building blocks by introducing the concept of topological interlocking. This design principle has previously been shown to provide an inherently brittle material with a remarkable flexural compliance. We now demonstrate that by combining the basic architecture of nacre with topological interlocking of discrete hard building blocks, hybrid materials of a new type can be produced. By adding a soft phase at the interfaces between topologically interlocked blocks in a single-build additive manufacturing process, further improvement of mechanical properties is achieved. The design of these fabricated hybrid structures has been guided by computational work elucidating the effect of various geometries. To our knowledge, this is the first reported study that combines the advantages of nacre-inspired structures with the benefits of topological interlocking.
Non-swelling graphene oxide-polymer nanocomposite membrane for reverse osmosis desalination
Publisher: Elsevier BV
Date: 09-2018
Preparation and properties of composition-controlled carbon nanofiber/phenolic nanocomposites
Publisher: Elsevier BV
Date: 09-2013
Microporous polymer incorporated polyamide membrane for reverse osmosis desalination
Publisher: Elsevier BV
Date: 09-2020
Investigation of the thermal self-healing mechanism in a cross-linked epoxy system
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA43746A
Cold isostatic pressing technique for producing highly efficient flexible dye‐sensitised solar cells on plastic substrates
Publisher: Wiley
Date: 25-09-2011
DOI: 10.1002/PIP.1140
Biodegradable composites of poly(butylene succinate‐co‐butylene adipate) reinforced by poly(lactic acid) fibers
Publisher: Wiley
Date: 12-03-2016
DOI: 10.1002/APP.43530
Morphology and Electrical Conductivity of Ternary Polymer Blends Involving Liquid Crystalline Polymer Containing Carbon Nanotubes
Publisher: Wiley
Date: 31-05-2017
Robust Thermoresponsive Polymer Composite Membrane with Switchable Superhydrophilicity and Superhydrophobicity for Efficient Oil–Water Separation
Publisher: American Chemical Society (ACS)
Date: 06-01-2016
Abstract: Herein, we report for the first time on the fabrication of a robust, thermoresponsive polymer membrane produced by the combination of an elastic polyurethane (TPU) microfiber web and poly(N-isopropylacrylamide) (PNIPAM). PNIPAM hydrogel is evenly coated on the surface of TPU microfibers, and thus, the wettability of TPU-PNIPAM membrane is lified by taking advantage of the hierarchical structure and increased surface roughness. The TPU-PNIPAM membrane possesses switchable superhydrophilicity and superhydrophobicity as the temperature of membrane changes from 25 to 45 °C. The composite membrane is shown successfully able to separate a 1 wt % oil-in-water emulsion and 1 wt % water-in-oil emulsion at 25 and 45 °C, respectively, with a high separation efficiency of ≥99.26%. Furthermore, the composite membranes show excellent mechanical properties, and they are highly flexible and mechanically tough. The smart composite membranes reported here have shown great potential for further development for practical high-efficiency oil-water separations.
Polyhedral oligomeric silsesquioxane bound fulleropyrrolidines
Publisher: Wiley
Date: 08-2008
DOI: 10.1002/AOC.1425
Atomistic insights into the adsorption and stimuli-responsive behavior of poly(N-isopropylacrylamide)–graphene hybrid systems
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8CP04191A
Abstract: First fully atomistic study on PNIPAM/G-GO hybrid systems, unravelling their distinct adsorption and stimuli-responsive behaviors.
Effect of Incorporation of Multiwalled Carbon Nanotubes on the Microstructure and Flow Behavior of Highly Concentrated Emulsions
Publisher: American Chemical Society (ACS)
Date: 19-10-2018
Electropolymerization of Polypyrrole/Carbon Nanotube Nanocomposite Films over an Electrically Nonconductive Membrane
Publisher: American Chemical Society (ACS)
Date: 30-07-2010
DOI: 10.1021/JP101371U
Polymer hydrogels as smart draw agents in forward osmosis processes
Publisher: American Society of Civil Engineers
Date: 31-07-2015
Microwave‐based treatments for multi‐walled carbon nanotubes
Publisher: Wiley
Date: 10-2009
Transition and Stability of Copolymer Adsorption Morphologies on the Surface of Carbon Nanotubes and Implications on Their Dispersion
Publisher: American Chemical Society (ACS)
Date: 14-08-2014
DOI: 10.1021/LA502245S
Abstract: In this study, the adsorption morphologies as well as stability and transitions of a commercial dispersant copolymer (BYK 9076) on the surface of multiwalled carbon nanotubes (MWCNTs) were studied using Fourier transform infrared and UV-vis spectroscopy, dynamic light scattering, and electron microscopy techniques. The results show that the dispersion of carbon nanotubes in ethanol does not increase continuously with increasing copolymer/CNT ratio, which is correlated with the adsorption morphologies of the copolymer on the CNT surface. At a ratio of copolymer/CNT below 0.5, the morphology is random, shifting to a hemimicelle structure at a ratio from 0.5 to 1.0 while at ratios above 1.0, a cylindrical pattern is seen. The hemimicelle morphology is able to prevent the agglomeration of CNTs when the CNT concentration increases to 8.7 mg/mL, while cylindrical morphology is more efficient and stable to provide dispersion of CNTs at higher concentrations of CNTs.
Preparation and thermal characterisation of some new liquid crystalline copolymers involving a spacer unit based on vinylacetic acid
Publisher: Springer Science and Business Media LLC
Date: 10-1995
DOI: 10.1007/BF00297609
Design and fabrication of transdermal drug delivery patch with milliprojections using material extrusion 3D printing
Publisher: Wiley
Date: 05-12-2020
DOI: 10.1002/APP.48777
Deformation mechanics of non-planar topologically interlocked assemblies with structural hierarchy and varying geometry
Publisher: Springer Science and Business Media LLC
Date: 19-09-2017
DOI: 10.1038/S41598-017-12147-3
Abstract: Structural hierarchy is known to enhance the performance of many of Nature’s materials. In this work, we apply the idea of hierarchical structure to topologically interlocked assemblies, obtained from measurements under point loading, undertaken on identical discrete block ensembles with matching non-planar surfaces. It was demonstrated that imposing a hierarchical structure adds to the load bearing capacity of topological interlocking assemblies. The deformation mechanics of these structures was also examined numerically by finite element analysis. Multiple mechanisms of surface contact, such as slip and tilt of the building blocks, were hypothesised to control the mechanical response of topological interlocking assemblies studied. This was confirmed using as a model a newly designed interlocking block, where slip was suppressed, which produced a gain in peak loading. Our study highlights the possibility of tailoring the mechanical response of topological interlocking assemblies using geometrical features of both the element geometry and the contact surface profile.
Synthesis of Bioacrylic Polymers from Dihydro-5-hydroxyl furan-2-one (2H-HBO) by Free and Controlled Radical Polymerization
Publisher: American Chemical Society (ACS)
Date: 20-02-2018
Anomalous rheological behavior in chemically modified TiO2 colloidal pastes prepared for flexible dye-sensitized solar cells
Publisher: Royal Society of Chemistry (RSC)
Date: 2010
DOI: 10.1039/C0JM02063J
Interfacing colloidal graphene oxide sheets with gold nanoparticles
Publisher: Wiley
Date: 14-04-2011
Abstract: Aqueous solutions of graphene oxide (GO) and citrate-stabilised gold nanoparticles (AuNPs) are two classic, negatively charged colloids. Using the surface plasmon resonance spectra of AuNPs as a probe, we illustrate how the two like-charged colloids interact with each other and in so doing, reveal the unique solution behaviour of GO. We demonstrate that the electrical double layer of the GO sheets in water plays a key role in controlling the interaction between GO and AuNPs, which displays a one-way gate effect. It is shown that GO can capture and disperse AuNPs in water in a controllable fashion, without the need for additional chemical linkers. This discovery allows the successful synthesis of uncapped, yet solution-dispersible metal-nanoparticle assemblies. Such metal nanostructures have long been pursued for nano-plasmonics and sensing applications, but have remained difficult to prepare using conventional polymer dispersants. This work also makes clear that the combination of the two-dimensional conformation of GO along with its large molecular size and self-contained functional groups allows it to act as a unique soluble nanocarrier/substrate (the thinnest, functionalised flat substrate possible in nature) for the synthesis of new, soluble functional materials.
Rheokinetics of graft copolymerization of acrylamide in concentrated starch and rheological behaviors and microstructures of reaction products
Publisher: Elsevier BV
Date: 07-2018
DOI: 10.1016/J.CARBPOL.2018.03.040
Abstract: A widely recognized challenge in starch chemistry is to manipulate the graft copolymerization onto starch melt by reactive extrusion (REX). To understand the complex in-situ graft copolymerization in highly concentrated systems, we firstly used a mixer to achieve a homogeneous viscous starch melt, and then undertook dynamic rheological measurements to study the rheokinetics of the reaction. The in-situ synthesis also facilitated the characterization of the microstructures of reaction products. The melt mixture could be regarded to be completely micromixed since the rheokinetics was predominated by the reaction kinetics. The rheological characterization revealed that G'of hydrogels followed a linear progression with the crosslinker concentration. Nevertheless, the reaction temperature and initiator content had little influence on the final microstructure of hydrogels, most likely due to the strong chain transfer reaction in the melt. Additionally, high-amylose starches tended to form grafted hydrogels with a high physical crosslinking density.
Evolution of directly-spinnable carbon nanotube growth by recycling analysis
Publisher: Elsevier BV
Date: 05-2011
Properties of a semi-crystalline and an amorphous thermotropic liquid crystalline polymer
Publisher: Wiley
Date: 1992
Cyclodextrin metal-organic framework-polymer composite membranes towards ultimate and stable enantioselectivity
Publisher: Elsevier BV
Date: 02-2021
A consideration of the accuracy and application of the Brather approximation for the transformation of dielectric relaxation data from the time domain to the frequency domain
Publisher: Elsevier BV
Date: 1993
Fabrication and characterization of functionally graded synthetic graphite/phenolic nanocomposites
Publisher: Elsevier BV
Date: 05-2012
Stimuli-responsive polymer hydrogels as a new class of draw agent for forward osmosis desalination
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C0CC04701E
Abstract: Ionic polymer hydrogels with thermal responsive units are found to induce higher water permeation rates in the osmosis process, and higher water release rates under a combination of pressure and thermal stimuli. These hydrogels have the potential for use as draw agent in forward osmosis desalination.
Effect of alkanol surface grafting on the hydrophobicity of starch-based films
Publisher: Elsevier BV
Date: 06-2018
DOI: 10.1016/J.IJBIOMAC.2018.01.205
Abstract: The surface hydrophobicity of starch-based films could be regulated using a two-step surface modification method. Such modification was realized by grafting with alkanols of different chain lengths (hexanol, dodecanol and octadecanol) on the surface of starch-based films. The grafting of alkanol increased the mobility of glycerol as the plasticizer within the film surface. Also, this grafting increased the mass ratio of carbon to oxygen on the film surface but reduced the mass ratio of carbon to nitrogen. Under the same reaction conditions, there were fewer dodecyl chains grafted onto the film surface than hexyl or octadecyl chains. Furthermore, the results revealed that the surface hydrophobicity of starch-based films could be enhanced by simply increasing the alkyl chain length. Also, fewer alkyl chains tended to reduce the surface hydrophobicity of the films. These results are valuable for the rational design of starch-based materials with demanded hydrophobic properties.
Design, Preparation and Characterization of Self‐Reinforced Starch Films through Chemical Modification
Publisher: Wiley
Date: 07-09-2010
Synthesis of POSS−Methyl Methacrylate-Based Cross-Linked Hybrid Materials
Publisher: American Chemical Society (ACS)
Date: 08-02-2008
DOI: 10.1021/MA702103Z
A study of the use of high functionality-based resin for bonding between CFRP and concrete under harsh environmental conditions
Publisher: Elsevier BV
Date: 2013
A novel carbon nanofibre/phenolic nanocomposite coated polymer system for tailoring thermal behaviour
Publisher: Elsevier BV
Date: 03-2013
Nitrogen‐Doped Nanoporous Carbon/Graphene Nano‐Sandwiches: Synthesis and Application for Efficient Oxygen Reduction
Publisher: Wiley
Date: 13-08-2015
Electrolyte gating in graphene-based supercapacitors and its use for probing nanoconfined charging dynamics
Publisher: Springer Science and Business Media LLC
Date: 22-06-2020
Evolution of directly-spinnable carbon nanotube catalyst structure by recycling analysis
Publisher: Elsevier BV
Date: 10-2013
Carbon Nanotube Networks as Nanoscaffolds for Fabricating Ultrathin Carbon Molecular Sieve Membranes
Publisher: American Chemical Society (ACS)
Date: 29-05-2018
Abstract: Carbon molecular sieve (CMS) membranes have shown great potential for gas separation owing to their low cost, good chemical stability, and high selectivity. However, most of the conventional CMS membranes exhibit low gas permeance due to their thick active layer, which limits their practical applications. Herein, we report a new strategy for fabricating CMS membranes with a 100 nm-thick ultrathin active layer using poly(furfuryl alcohol) (PFA) as a carbon precursor and carbon nanotubes (CNTs) as nanoscaffolds. CNT networks are deposited on a porous substrate as nanoscaffolds, which guide PFA solution to effectively spread over the substrate and form a continuous layer, minimizing the penetration of PFA into the pores of the substrate. After pyrolysis process, the CMS membranes with 100-1000 nm-thick active layer can be obtained by adjusting the CNT loading. The 322 nm-thick CMS membrane exhibits the best trade-off between the gas permeance and selectivity, a H
Characterisation of the thermal self-healing of a high crosslink density epoxy thermoset
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5NJ00066A
Abstract: Different properties of a new self-healing TGAP-based epoxy polymer were studied and the influence of the crosslink density is demonstrated.
Unconventional Janus Properties of Enokitake-like Gold Nanowire Films
Publisher: American Chemical Society (ACS)
Date: 26-07-2018
Abstract: We report on unconventional Janus material properties of vertically aligned gold nanowire films that conduct electricity and interact with light and water in drastically different ways on its two opposing sides. These Janus-like properties originate from enokitake-like nanowire structures, causing the nanoparticle side ("head") to behave like bulk gold, yet the opposing nanowire side ("tail") behaves as discontinuous nanophases. Due to this Janus film structure, its head side is hydrophilic but its tail side is hydrophobic its head side reflects light like bulk gold, yet its tail side is a broadband superabsorber its tail side is less conductive but with tunable resistance. More importantly, the elastomer-bonded Janus film exhibits unusual mechatronic properties when being stretched, bent, and pressed. The tail-bonded elastomeric sheet can be stretched up to ∼800% strain while remaining conductive, which is about 10-fold that of head-bonded film. In addition, it is also more sensitive to bending forces and point loads than the corresponding tail-bonded film. We further demonstrate the versatility of nanowire-based Janus films for pressure sensors using bilayer structures in three different assembly layouts.
Thermal behavior of core-shell rubber/styrene monomer gels
Publisher: Wiley
Date: 23-10-2000
DOI: 10.1002/1099-0488(20001201)38:23<3136::AID-POLB140>3.0.CO;2-S
Thermal properties and miscibility of semi‐crystalline and amorphous PLA blends
Publisher: Wiley
Date: 22-07-2014
DOI: 10.1002/APP.41205
The effect of carbon nanotube properties on the degree of dispersion and reinforcement of high density polyethylene
Publisher: Elsevier BV
Date: 07-2010
Effect of processing conditions on microstructures and properties of hydroxypropyl methylcellulose/hydroxypropyl starch blends
Publisher: Elsevier BV
Date: 09-2017
The hydration of paper studied with solid-state magnetisation-exchange 1H NMR spectroscopy
Publisher: Walter de Gruyter GmbH
Date: 07-2006
DOI: 10.1515/HF.2006.064
Abstract: The wide-line 1 H nuclear magnetic resonance (NMR) spectrum of paper in equilibrium with ambient humidity consists of super-imposed relatively broad and narrow lines. The narrower line is of the order of 2 kHz wide at half the maximum height, while the broader line is of the order of 40 kHz in width at half height. On the basis of these line widths, the narrow line is assigned to water sorbed to the paper, and the broad line to the polymeric constituents of the paper. It was not possible to distinguish between the various polymeric components of paper contributing to the 1 H NMR spectra. A modified Goldman-Shen pulse sequence was used to generate a spatial magnetisation gradient between the polymer and water phases. The exchange of magnetisation between protons associated with water and those associated with the macromolecules in paper was observed. The exchange of magnetisation is discussed within a heat transfer model for homonuclear dipolar coupling, with exchange being characterised by a spin-diffusion coefficient. Consideration of the magnitude of the initial rate of the exchange process and estimates of the spin-spin relaxation times based on 1 H line widths indicate that some water must exist in a sufficiently immobile state as to allow homonuclear dipolar interactions between adjacent polymer and water protons. Thus, water sorbed onto paper must exist in at least two states in mass exchange with each other. This observation allows certain conclusions to be drawn about the ratio of free/bound water as a function of moisture content and the dispersal of water within the polymer matrix.
Light triggered self-healing of polyacrylate polymers crosslinked with 7-methacryloyoxycoumarin crosslinker
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7PY01385J
Abstract: Crosslinked acrylate polymers with coumarin crosslinker displayed a light (UV) only triggered self-healing property.
Enokitake Mushroom-like Standing Gold Nanowires toward Wearable Noninvasive Bimodal Glucose and Strain Sensing
Publisher: American Chemical Society (ACS)
Date: 28-02-2019
Abstract: We have recently demonstrated that Enokitake mushroom-like gold with nanoparticles as the "head" and nanowires as the "tail" could grow directly on elastomeric substrates, which are extremely stretchable electrodes that can be used as wearable sensors for detecting strain and pressure. In this work, we show that such electrodes can also be used as intrinsically stretchable glucose biosensors. By modifying the vertical gold nanowire electrodes with glucose oxidase and Prussian blue nanoparticles, a limit of detection of 10 μM, sensitivity of 23.72 μA·mM
Properties of dimethacrylate copolymers of varying crosslink density
Publisher: Elsevier BV
Date: 1991
Aqueous hydrogen peroxide-induced degradation of polyolefins: A greener process for controlled-rheology polypropylene
Publisher: Elsevier BV
Date: 07-2015
Water absorption and states of water in semicrystalline poly(vinyl alcohol) films
Publisher: Elsevier BV
Date: 04-1996
Evolution of phase morphology and ‘network-like’ structure of multiwall carbon nanotubes in binary polymer blends during melt-mixing
Publisher: Wiley
Date: 11-03-2014
DOI: 10.1002/PEN.23897
Thermo-responsive Membranes with Switchable Superhydrophilicity and Superhydrophobicity for Oil–Water Separation
Publisher: The Royal Society of Chemistry
Date: 16-04-2019
DOI: 10.1039/9781788016377-00362
Abstract: Oil–water separation remains key in the development of technology for a range of applications. In this chapter, thermally responsive membranes with switchable superwettabilities used for controllable oil–water separation will be discussed. Superwetting membranes have been shown to be energy-efficient and cost-effective for the separation of oil–water mixtures or oil–water emulsions because the separation mechanism is based on the different interfacial effects of oil or water on the superwetting surface. These membranes show not only excellent separation efficiency, but also ultrahigh permeation flux. In recent years, on–off switchable separation of oil–water mixtures, separation of different kinds of oil-in-water emulsions and water-in-oil emulsions with the same membrane, and tuneable permeation flux have been achieved by introduction of a thermally responsive ability into the superwetting membranes. The challenges in this area are also outlined for further development of thermo-responsive membranes with superwetting surfaces for controllable oil–water separation and practical applications.
Fabrication of efficient solar cells on plastic substrates using binder-free ball milled titania slurries
Publisher: Elsevier BV
Date: 07-2009
Nitrile Oxide-Norbornene Cycloaddition as a Bioorthogonal Crosslinking Reaction for the Preparation of Hydrogels
Publisher: Wiley
Date: 06-08-2015
Abstract: This communication describes the first application of cycloaddition between an in situ generated nitrile oxide with norbornene leading to a polymer crosslinking reaction for the preparation of poly(ethylene glycol) hydrogels under physiological conditions. Hydrogels with high water content and robust physical strength are readily formed within 2-5 min by a simple two-solution mixing method which allows 3D encapsulation of neuronal cells. This bioorthogonal crosslinking reaction provides a simple yet highly effective method for preparation of hydrogels to be used in bioengineering.
Investigation of thermo-mechanical properties of adhesive used for bonding CF fabrics to concrete members using post-curing techniques
Publisher: Elsevier BV
Date: 12-2012
Light-triggered release of ciprofloxacin from an in situ forming click hydrogel for antibacterial wound dressings
Publisher: Royal Society of Chemistry (RSC)
Date: 2015
DOI: 10.1039/C5TB01820J
Abstract: Light triggered release of an antibiotic from a click crosslinked hydrogel was developed by conjugating ciprofloxacin through a photo-cleavable linker to the hydrogel network structure.
Photodegradable gelatin-based hydrogels prepared by bioorthogonal click chemistry for cell encapsulation and release
Publisher: American Chemical Society (ACS)
Date: 24-06-2015
DOI: 10.1021/ACS.BIOMAC.5B00706
Abstract: In this study, we present a method for the fabrication of in situ forming gelatin and poly(ethylene glycol)-based hydrogels utilizing bioorthogonal, strain-promoted alkyne-azide cycloaddition as the cross-linking reaction. By incorporating nitrobenzyl moieties within the network structure, these hydrogels can be designed to be degradable upon irradiation with low intensity UV light, allowing precise photopatterning. Fibroblast cells encapsulated within these hydrogels were viable at 14 days and could be readily harvested using a light trigger. Potential applications of this new class of injectable hydrogel include its use as a 3D culturing platform that allows the capture and release of cells, as well as light-triggered cell delivery in regenerative medicine.
Composite polymer hydrogels as draw agents in forward osmosis and solar dewatering
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1SM06043K
Light‐Switchable Self‐Healing Dynamic Linear Polymers: Reversible Cycloaddition Reactions of Thymine‐Containing Units
Publisher: Wiley
Date: 07-03-2019
Abstract: A dynamic linear polymer was formed by the [2π+2π] reversible cycloaddition reaction of a thymine-based monomer under topochemical conditions and was used in self-healing applications. The reversible polymerisation of the thymine monomer was confirmed by UV and GPC analysis. Irradiation at 302 nm resulted in polymerisation of the monomer, and irradiation with wavelengths lower than 240 nm resulted in depolymerisation and the production of oligomeric units. This leads to a reduction in the glass transition temperature, and promoted healing of surface scratches due to the increased chain mobility. The self-healing ability of scratched s les was assessed based on the visual disappearance of the damage. In addition, the mechanical properties of the polymer before and after healing were found to be similar.
Mechanically-Assisted Electrochemical Production of Graphene Oxide
Publisher: American Chemical Society (ACS)
Date: 11-11-2016
Polyolefin–carbon nanotube composites
Publisher: Elsevier
Date: 2011
Effects of composition on the water uptake and hydroplasticisation of the glass transition temperature of methacrylate copolymers
Publisher: Elsevier BV
Date: 05-2002
Thermoresponsive Amphoteric Metal-Organic Frameworks for Efficient and Reversible Adsorption of Multiple Salts from Water
Publisher: Wiley
Date: 10-07-2018
Abstract: Regenerable, high-efficiency salt sorption materials are highly desirable for water treatment. Here, a thermoresponsive, hoteric metal-organic framework (MOF) material is reported that can adsorb multiple salts from saline water at room temperature and effectively release the adsorbed salts into water at elevated temperature (e.g., 80 °C). The hoteric MOF, integrated with both cation-binding carboxylic groups and anion-binding tertiary amine groups, is synthesized by introducing a polymer with tertiary amine groups into the cavities of a water-stable MOF such as MIL-121 with carboxylic groups inside its frameworks. The hoterized MIL-121 exhibits excellent salt adsorption properties, showing stable adsorption-desorption cycling performances and high LiCl, NaCl, MgCl
Self-assembled gold nanorime mesh conductors for invisible stretchable supercapacitors
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8NR04256J
Abstract: Supercapacitors with high areal capacitance, high mechanical stretchability, and high optical transparency are achieved simultaneously using novel self-assembled gold nanorime mesh structures.
Intrinsically Stretchable Fuel Cell Based on Enokitake‐Like Standing Gold Nanowires
Publisher: Wiley
Date: 28-11-2020
A sunlight-responsive metal–organic framework system for sustainable water desalination
Publisher: Springer Science and Business Media LLC
Date: 10-08-2020
Liquid-Wetting-Solid Strategy To Fabricate Stretchable Sensors for Human-Motion Detection
Publisher: American Chemical Society (ACS)
Date: 08-02-2016
Free Volume and the Mechanism of Plasticization in Water-Swollen Poly(vinyl alcohol)
Publisher: American Chemical Society (ACS)
Date: 1996
DOI: 10.1021/MA951073J
Effects of Annealing Siloxane Side-Chain Liquid Crystalline Polymers in the Biphasic Region
Publisher: American Chemical Society (ACS)
Date: 03-1994
DOI: 10.1021/MA00084A050
Phase reduction of coated maghemite (γ-Fe 2 O 3 ) nanoparticles under microwave-induced plasma heating for rapid heat treatment
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C1JM12524A
Material Properties Imaging of Cross-Linked Polymers by NMR
Publisher: American Chemical Society (ACS)
Date: 09-1994
DOI: 10.1021/MA00098A035
On the Interpretation of X‐Ray Diffraction Powder Patterns in Terms of the Nanostructure of Cellulose I Fibres
Publisher: Wiley
Date: 29-07-2005
Renewable Green Platform Chemicals for Polymers
Publisher: MDPI AG
Date: 28-02-2017
Correction: Toll-like receptor responses to Peste des petits ruminants virus in goats and water buffalo
Publisher: Public Library of Science (PLoS)
Date: 29-01-2015
A free volume study of miscible polyester blends
Publisher: Wiley
Date: 02-1995
Photoreversible Smart Polymers Based on 2π + 2π Cycloaddition Reactions: Nanofilms to Self-Healing Films
Publisher: American Chemical Society (ACS)
Date: 13-03-2019
Transcript profiling of pattern recognition receptors in a semi domesticated breed of buffalo, Toda, of India
Publisher: Elsevier BV
Date: 06-2012
DOI: 10.1016/J.VETIMM.2012.02.009
Abstract: The primary objective of this study was to assess the expression profile and levels of toll-like receptor (TLR) mRNAs in the spleen, lung, mediastinal lymph node (MLN), jejunum, rectum, skin and peripheral blood mononuclear cells (PBMC) of Toda and Murrah buffalos. Spleen and PBMC had increased expression of TLR mRNAs 2, 4, 5, 6, 8, 9 and 10 lung had increased expression of TLR mRNAs 2, 4, 5, 6 and 8, MLN TLR mRNA 6, 9, 10 and decrease in TLR 3 and 7 mRNAs in skin. No significant differences were observed in the expression levels of any of the TLR mRNA in jejunum and rectum. Toda buffaloes showed significantly higher expression levels of TLR 9 mRNA in MLN, TLR mRNAs 1, 5, 6, 9 and 10 in skin and TLR mRNAs 2, 4, 7 and 9 in PBMC than Murrah buffaloes living in the vicinity. Toda and Murrah buffaloes were inoculated with TLR5 (flagellin) and TLR9 (CpG ODN) ligands in vivo and expression levels of the respective TLRs analyzed 12h later. Following CpG inoculation, Toda buffaloes had significantly higher levels of TLR 9 mRNA expression but not in Murrah. However, flagellin induction did not increase TLR 5 mRNA expression in both these breeds. Histological sections of the skin were made and infiltrating cell clusters were graded and quantified. Following CpG inoculation, Toda buffaloes showed higher numbers of infiltrating grade 1 and grade 3 cell clusters while Murrah showed lower numbers of infiltrating grade 1 cells as compared to mock-inoculated skin sections. Flagellin treatment revealed no significant differences in infiltrating cell clusters in both the breeds. The results have shown differential expression of TLR mRNAs in various tissues between two ergent buffalo breeds with the highest difference in TLR expression profile seen in the skin, the largest portal of entry of pathogens, of Toda.
Mechanisms in damping of mechanical vibration by piezoelectric ceramic-polymer composite materials
Publisher: Springer Science and Business Media LLC
Date: 05-1995
DOI: 10.1007/BF00362148
Effect of particle size on the performance of forward osmosis desalination by stimuli-responsive polymer hydrogels as a draw agent
Publisher: Elsevier BV
Date: 2013
Nucleation of isotactic polypropylene with metal monoglycerolates
Publisher: Elsevier BV
Date: 02-2015
Graphene-directed supramolecular assembly of multifunctional polymer hydrogel membranes
Publisher: Wiley
Date: 27-10-2015
Modulating transparency and colour of cellulose nanocrystal composite films by varying polymer molecular weight
Publisher: Elsevier BV
Date: 02-2021
Effects of annealing on gelatinization and microstructures of corn starches with different amylose/amylopectin ratios
Publisher: Elsevier BV
Date: 07-2009
The enhanced hydrogen separation performance of mixed matrix membranes by incorporation of two-dimensional ZIF-L into polyimide containing hydroxyl group
Publisher: Elsevier BV
Date: 03-2018
Fusion of carbon nanotubes for fabrication of field emission cathodes
Publisher: Elsevier BV
Date: 02-2012
How rheological behaviors of concentrated starch affect graft copolymerization of acrylamide and resultant hydrogel
Publisher: Elsevier BV
Date: 09-2019
DOI: 10.1016/J.CARBPOL.2019.05.034
Abstract: Corn starches with different amylose/amylopectin ratios were used to explore the effect of rheological behaviors of concentrated system on the graft copolymerization of acrylamide and resultant hydrogels, which sheds a light on their reactive extrusion process. The viscoelastic moduli of starch melts increased with increasing amylose content (AC), leading to a decreased extent of micro-mixing detected by a reduced rheokinetic rate. With increasing AC, the graft efficiency was decreased but with almost similar monomer conversion (about 87.5%) and nearly equivalent graft content. XRD and SAXS spectra revealed that the extent of retrogradation of the starches were increased and two-phase separation was enhanced for hydrogels with increasing AC. Interestingly, microscopic analysis showed the superabsorbent hydrogel from the starch with AC of 50% exhibited a gridding membrane porous structure, resulting in a higher water absorbent capacity of 550 g/g. This was attributed to the moderate crosslinking and the slightly greater graft content.
Functionalized Boron Nitride Nanosheets
Publisher: Wiley
Date: 11-11-2018
Abstract: Amino functionalized boron nitride nanosheets (FBN) were incorporated into a crosslinked, thermally rearranged polyimide (XTR) to fabricate FBN-XTR nanocomposite membrane. The FBN-XTR membrane exhibited a small decrease in H
Mechanical and erosion properties of CaCO 3-EMAA thermal sprayed coatings
Publisher: Wiley
Date: 2004
DOI: 10.1002/PEN.20141
Transient isothermal elongational flow of thermotropic liquid crystalline polymers
Publisher: Elsevier BV
Date: 1993
Characterisation and purity of siloxane side-chain liquid-crystalline polymers by gel-permeation chromatography and dielectric relaxation spectroscopy
Publisher: Royal Society of Chemistry (RSC)
Date: 1993
DOI: 10.1039/JM9930300537
Altering the growth conditions of Gluconacetobacter xylinus to maximize the yield of bacterial cellulose
Publisher: Elsevier BV
Date: 06-2012
DOI: 10.1016/J.CARBPOL.2012.03.059
Abstract: An extensive matrix of different growth conditions including media, incubation time, inoculum volume, surface area and media volume were investigated in order to maximize the yield of bacterial cellulose produced by Gluconacetobacter xylinus, which will be used as reinforcement material to produce fully biodegradable composites. Crystallinity was shown to be controllable depending on the media and conditions employed. S les with significant difference in crystallinity in a range from 50% to 95% were produced. Through experimental design, the yield of cellulose was maximized primarily this involved reactor surface area design, optimized media and the use of mannitol being the highest cellulose-producing carbon source. Increasing the volume of the media did achieve a higher cellulose yield, however this increase was not found to be cost or time effective.
The effect of the spacer group on side-chain liquid crystal polymer dielectric mobility
Publisher: Elsevier BV
Date: 11-1994
Manipulation of mechanical compliance of elastomeric PGS by incorporation of halloysite nanotubes for soft tissue engineering applications
Publisher: Elsevier BV
Date: 11-2011
DOI: 10.1016/J.JMBBM.2011.05.038
Abstract: Poly (glycerol sebacate) (PGS) is a promising elastomer for use in soft tissue engineering. However, it is difficult to achieve with PGS a satisfactory balance of mechanical compliance and degradation rate that meet the requirements of soft tissue engineering. In this work, we have synthesised a new PGS nanocomposite system filled with halloysite nanotubes, and mechanical properties, as well as related chemical characters, of the nanocomposites were investigated. It was found that the addition of nanotubular halloysite did not compromise the extensibility of material, compared with the pure PGS counterpart instead the elongation at rupture was increased from 110 (in the pure PGS) to 225% (in the 20 wt% composite). Second, Young's modulus and resilience of 3-5 wt% composites were ∼0.8 MPa and >94% respectively, remaining close to the level of pure PGS which is desired for applications in soft tissue engineering. Third, an important feature of the 1-5 wt% composites was their stable mechanical properties over an extended period, which could allow the provision of reliable mechanical support to damaged tissues during the lag phase of the healing process. Finally, the in vitro study indicated that the addition of halloysite slowed down the degradation rate of the composites. In conclusion, the good compliance, enhanced stretchability, stable mechanical behavior over an extended period, and reduced degradation rates make the 3-5 wt% composites promising candidates for application in soft tissue engineering.
Epoxy and hyperbranched polymer blends: Morphology and free volume
Publisher: Wiley
Date: 30-03-2010
DOI: 10.1002/APP.31183
Electrochemical exfoliation of graphite and production of functional graphene
Publisher: Elsevier BV
Date: 10-2015
Functionally graded carbon nanofiber-phenolic nanocomposites for sudden temperature change applications
Publisher: Elsevier BV
Date: 07-2013
Polyhedral oligomeric silsesquioxane‐bound iminofullerene
Publisher: Wiley
Date: 21-10-2009
DOI: 10.1002/AOC.1568
Standing Enokitake-like Nanowire Films for Highly Stretchable Elastronics
Publisher: American Chemical Society (ACS)
Date: 18-09-2018
Abstract: Stretchable electronics may enable electronic components to be part of our organs-ideal for future wearable/implantable biodiagnostic systems. One of key challenges is failure of the soft/rigid material interface due to mismatching Young's moduli, which limits stretchability and durability of current systems. Here, we show that standing enokitake-like gold-nanowire-based films chemically bonded to an elastomer can be stretched up to 900% and are highly durable, with >93% conductivity recovery even after 2000 stretching/releasing cycles to 800% strain. Both experimental and modeling reveal that this superior elastic property originates from standing enokitake-like nanowire film structures. The closely packed nanoparticle layer sticks to the top of the nanowires, which easily cracks under strain, whereas the bottom part of the nanowires is compliant with substrate deformation. This leads to tiny V-shaped cracks with a maintained electron transport pathway rather than large U-shaped cracks that are frequently observed for conventional metal films. We further show that our standing nanowire films can serve as current collectors in supercapacitors and second skin-like smart masks for facial expression detection.
Bacterial Cellulose and its Use in Renewable Composites
Publisher: Wiley
Date: 14-11-2014
Preparation of graphene nanowalls by a simple microwave-based method
Publisher: Elsevier BV
Date: 11-2010
Optical Characterisation of Non-Covalent Interactions between Non-Conjugated Polymers and Chemically Converted Graphene
Publisher: CSIRO Publishing
Date: 2014
DOI: 10.1071/CH13243
Abstract: Optical characterisation using dye molecules as probes was used to study the non-covalent interactions between chemically converted graphene (CCG) and non-conjugated, water soluble polymers in aqueous solution. The strong adsorption of non-conjugated polymers such as poly(ethylene oxide) (PEO) and poly(vinyl alcohol) (PVA) on CCG is observed by fluorescence and ultraviolet-visible spectroscopy and atomic force microscopy, and this leads to desorption of π-conjugated molecules from CCG. Such adsorption/desorption behaviour can be tailored by modifying the molecular weight of polymers and the chemistry of graphene. This finding provides a facile and non-covalent approach to the functionalisation of CCG and opens up new opportunities for the fabrication of graphene olymer nanocomposites.
Understanding parameters affecting field emission properties of directly spinnable carbon nanotube webs
Publisher: Elsevier BV
Date: 06-2013
Scission of electrospun polymer fibres by ultrasonication
Publisher: Elsevier BV
Date: 07-2013
Properties of a blend of poly(phenylene ether) with a liquid-crystalline polymer
Publisher: Elsevier BV
Date: 1992
A Phosphorus-Containing Diamine for Flame-Retardant, High-Functionality Epoxy Resins. I. Synthesis, Reactivity, and Thermal Degradation Properties
Publisher: Wiley
Date: 08-03-2004
DOI: 10.1002/APP.20145
High performance bulk metallic glass/carbon nanotube composite cathodes for electron field emission
Publisher: AIP Publishing
Date: 07-11-2011
DOI: 10.1063/1.3659898
Abstract: We report the preparation of new nanocomposites based on a combination of bulk metallic glass and carbon nanotubes for electron field emission applications. The use of bulk metallic glass as the matrix ensures high electrical and thermal conductivity, high thermal stability, and ease of processing, whilst the well dispersed carbon nanotubes act as highly efficient electron emitters. These advantages, alongside excellent electron emission properties, make these composites one of the best reported options for electron emission applications to date.
Biodegradation of 3D‐printed polylactic acid milliprojections under physiological conditions
Publisher: Wiley
Date: 17-02-2020
DOI: 10.1002/APP.49129
Preparation and characterization of slow-release fertilizer encapsulated by starch-based superabsorbent polymer
Publisher: Elsevier BV
Date: 08-2016
DOI: 10.1016/J.CARBPOL.2016.04.010
Abstract: To enhance the effectiveness of fertilizers, a novel double-coated slow-release fertilizer was developed using ethyl cellulose (EC) as inner coating and starch-based superabsorbent polymer (starch-SAP) as outer coating. For starch-SAPs synthesized by a twin-roll mixer using starches from three botanical origins, a reduced grid size and an increased fractal gel size on nano-scale (i.e., increased stretch of 3D network) contributed to increasing the water absorbing capacity with a reduced absorbing rate and thus improving the slow-release property of fertilizer. The fertilizer particles coated with starch-SAP displayed well slow-release behaviors. In soil, compared to urea particles without and with EC coating, the particles further coated with starch-SAP showed reduced nitrogen release rate, and in particular, those with potato starch-SAP coating exhibited a steady release behavior for a period longer than 96h. Therefore, this work has demonstrated the potential of this new slow-release fertilizer system for improving the effectiveness of fertilizers.
The points of contact between poly(methyl methacrylate) and absorbed water as indicated by PE/MAS 13C NMR
Publisher: Springer Science and Business Media LLC
Date: 1986
DOI: 10.1007/BF00254856
Gold nanoparticle-paper as a three-dimensional surface enhanced raman scattering substrate
Publisher: American Chemical Society (ACS)
Date: 06-2012
DOI: 10.1021/LA3012734
Abstract: This work investigates the effect of gold nanoparticle (AuNP) addition to paper substrate and examines the ability of these composite materials to lify the surface enhanced Raman scattering (SERS) signal of a dye adsorbed. Paper has a three-dimensional (3D), porous, and heterogeneous morphology. The manner in which paper adsorbs the nanoparticles is crucial to its SERS properties, particularly with regards to aggregation. In this work, we sought to maintain the same degree of aggregation, while changing the concentration of nanoparticles deposited on paper. We achieved this by dipping paper into AuNP solutions of different, known concentration and found that the initial packing density of AuNPs in solutions was retained on paper with the same degree of aggregation. The surface coverage of AuNPs on paper was found to scale linearly to their concentration profile in solutions. The SERS performances of the AuNP-treated papers were evaluated with 4-aminothiophenol (4-ATP) as the Raman molecule, and their SERS intensities increased linearly with the AuNPs' concentration. Compared to AuNP-treated silicon, the Raman enhancement factor (EF) from paper was relatively higher due to a more uniform and greater degree of adsorption of AuNPs. The effect of the spatial distribution of AuNPs in their substrates on SERS activity was also investigated. In this experiment, the number of AuNPs was kept constant (a 1 μL droplet of AuNPs was deposited on all substrates), and the distribution profile of AuNPs was controlled by the nature of the substrate: paper, silicon, and hydrophobized paper. The AuNP droplet on paper showed the most reproducible and sensitive SERS signal. This highlighted the role of the z-distribution (through film) of AuNPs within the bulk of the paper, producing a 3D multilayer structure to allow inter- and intralayer plasmon coupling, and hence lifying the SERS signal. The SERS performance of nanoparticle-functionalized paper can thus be optimized by controlling the 3D distribution of the metallic nanoparticles, and such control is critical if these systems are to be implemented as a low-cost and highly sensitive bioassay platform.
Development of bio-acrylic polymers from Cyrene™: Transforming a green solvent to a green polymer
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9PY00353C
Abstract: A bio-based methacrylic polymer derived from a green solvent, Cyrene™ through a green synthesis pathway with very high glass transition temperature, thermal stability and high reactivity.
Chemistries and capabilities of photo-formable and photoreversible crosslinked polymer networks
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9MH00217K
Abstract: We investigate how the application of photocuring has addressed unique challenges through inherent benefits of the methodology or inventive chemistries.
Enhanced Thermal Conductivity of Copper Nanofluids: The Effect of Filler Geometry
Publisher: American Chemical Society (ACS)
Date: 22-05-2017
Abstract: Nanofluids are colloidal dispersions that exhibit enhanced thermal conductivity at low filler loadings and thus have been proposed for heat transfer applications. Here, we systematically investigate how particle shape determines the thermal conductivity of low-cost copper nanofluids using a range of distinct filler particle shapes: nanospheres, nanocubes, short nanowires, and long nanowires. To exclude the potential effects of surface capping ligands, all the filler particles are kept with uniform surface chemistry. We find that copper nanowires enhanced the thermal conductivity up to 40% at 0.25 vol % loadings while the thermal conductivity was only 9.3% and 4.2% for the nanosphere- and nanocube-based nanofluids, respectively, at the same filler loading. This is consistent with a percolation mechanism in which a higher aspect ratio is beneficial for thermal conductivity enhancement. To overcome the surface oxidation of the copper nanomaterials and maintain the dispersion stability, we employed polyvinylpyrrolidone (PVP) as a dispersant and ascorbic acid as an antioxidant in the nanofluid formulations. The thermal performance of the optimized fluid formulations could be sustained for multiple heating-cooling cycles while retaining stability over 1000 h.
Viscoelastic properties of vis-breaking polypropylenes
Publisher: AIP Publishing LLC
Date: 2015
DOI: 10.1063/1.4937335
Influence of Noncovalent Modification on Dispersion State of Multiwalled Carbon Nanotubes in Melt-Mixed Immiscible Polymer Blends
Publisher: American Chemical Society (ACS)
Date: 02-07-2014
DOI: 10.1021/AM501737Z
Abstract: Multiwalled carbon nanotubes (MWNTs) were melt-mixed with polyamide6 (PA6) and acrylonitrile butadiene styrene copolymer (ABS) to obtain electrically conducting composites. MWNTs were noncovalently modified with sodium salt of 6-aminocaproic acid (MWNTs-m1) and 3-pyrenealdehyde (MWNTs-m2) to 'deagglomerate' MWNTs. Raman spectroscopic analysis indicated a G-band shift from ∼1581.9 cm(-1) for pristine MWNTs to ∼1590.2 cm(-1) for MWNTs-m1 and ∼1588.8 cm(-1) for MWNTs-m2, indicating the interaction between MWNTs and the respective modifier molecules. Blends showed 'co-continuous' morphology on the addition of MWNTs. TEM observations showed that a higher population of pristine MWNTs exhibited a 'nanoagglomerated' state in PA6 and ABS phases in the case of a 40/60 PA6/ABS blend, unlike a 60/40 blend, which depicted a higher population of 'in idualized' MWNTs. Further, the corresponding blends with MWNTs-m1 and MWNTs-m2 showed 'nanoagglomerated' and 'in idualized' MWNTs. Blends with pristine MWNTs showed an increase in DC electrical conductivity with an increase in PA6 concentration in the blend. Moreover, the corresponding blends with MWNTs-m1 and MWNTs-m2 exhibited an increased DC electrical conductivity value as compared to the corresponding blend with pristine MWNTs. Ratio of the intensity (H1/H2) of the crystallization peak at lower temperature (H1) to the intensity of the crystallization peak at higher temperature (H2) depicted lower values for blends with pristine MWNTs as compared to the corresponding blends with MWNTs-m1 and MWNTs-m2. TGA studies indicated the formation of a thicker 'interphase' involving MWNTs and the interacting polymer chains.
Synthesis and characterization of a range of POSS imides
Publisher: Elsevier BV
Date: 2012
Improvement of the swelling properties of ionic hydrogels by the incorporation of hydrophobic, elastic microfibers for forward osmosis applications
Publisher: American Chemical Society (ACS)
Date: 03-01-2017
Novel In-situ Precipitation Process to Engineer Low Permeability Porous Composite
Publisher: Springer Science and Business Media LLC
Date: 16-07-2018
DOI: 10.1038/S41598-018-28786-Z
Abstract: Inspired by the natural precipitation of minerals in soil and rocks, a novel, simple and industrially scalable in-situ precipitation process to produce low permeability porous composites is presented. This process relies on capillary flow in wettable porous composites to absorb and store liquid. In this process, a porous composite first absorbs a salt solution, after which the composite is dipped in a second salt solution. Salts are selected such as they react to form an insoluble precipitate. As big pores absorb more liquid than small pores, the precipitated particles are formed specifically for each pore. In this paper, precipitation of CaCO 3 nanoparticles in cellulose nanofibre (CNF) films was demonstrated as an ex le. Precipitation of 1 wt% of CaCO 3 nanoparticles in the CNF film reduced the pore volume by 50%, without changing the density. This reduced the water vapour and oxygen transmission rates by one order of magnitude to 4.7 g/m 2 .day and 2.7 cc/m 2 .day, respectively. The barrier properties of in-situ precipitated composites showed superior performance to previously reported CNF films in literature. The concept is general and of very high industrial interest as it can easily be retrofitted to current continuous industrial processes.
Enhancement of field emission of carbon nanotubes using a simple microwave plasma method
Publisher: Elsevier BV
Date: 02-2011
Controllable corrugation of chemically converted graphene sheets in water and potential application for nanofiltration
Publisher: Royal Society of Chemistry (RSC)
Date: 2011
DOI: 10.1039/C1CC10720H
Abstract: A combination of AFM, SEM and permeation experiments suggests that the litude of corrugation of chemically converted graphene (CCG) sheets in water can be readily controlled by hydrothermal treatment, leading to a new class of permeation-tuneable nanofiltration membranes.
Design of responsive materials using topologically interlocked elements
Publisher: IOP Publishing
Date: 23-01-2015
Ion transport in complex layered graphene-based membranes with tuneable interlayer spacing
Publisher: American Association for the Advancement of Science (AAAS)
Date: 05-02-2016
Abstract: A combination of experiments and simulations unveils unusual nanoconfined ion transport in layered graphene membranes.
Selective Permeation of Water through Angstrom-Channel Graphene Membranes for Bioethanol Concentration
Publisher: Wiley
Date: 08-07-2020
Spray-dried microspheres as a route to clay/polymer nanocomposites
Publisher: Wiley
Date: 28-01-2008
DOI: 10.1002/APP.27585
Examination of dimethacrylate inhomogeneity by solvent swelling techniques
Publisher: Wiley
Date: 10-1991
Molecular mobility of substituted poly(p-phenylenes) characterized by a range of polymer relaxation techniques
Publisher: Wiley
Date: 15-07-1998
DOI: 10.1002/(SICI)1099-0488(19980715)36:9<1465::AID-POLB5>3.0.CO;2-J
Processing/property relationships of a thermotropic copolyester: 2. Correlations between tensile properties and orientation
Publisher: Elsevier BV
Date: 1993
Field emission study of graphene nanowalls prepared by microwave-plasma method
Publisher: Elsevier BV
Date: 07-2011
Effects of thermal treatment on the microstructure and thermal and mechanical properties of poly(lactic acid) fibers
Publisher: Wiley
Date: 28-09-2012
DOI: 10.1002/PEN.23347
Optimizing the degree of carbon nanotube dispersion in a solvent for producing reinforced epoxy matrices
Publisher: Elsevier BV
Date: 11-2015
Effect of cationic polyacrylamide dissolution on the adsorption state of gold nanoparticles on paper and their Surface Enhanced Raman Scattering properties
Publisher: Elsevier BV
Date: 03-2013
Starch gelatinization under pressure studied by high pressure DSC
Publisher: Elsevier BV
Date: 02-2009
20 cm VLA Radio-Continuum Study of M31 - Images and Point Source Catalogues
Publisher: National Library of Serbia
Date: 2012
DOI: 10.2298/SAJ1284041G
Abstract: We present a series of new high-sensitivity and high-resolution radio-continuum images of M31 at ?=20 cm (?=1.4 GHz). These new images were produced by merging archived 20 cm radio-continuum observations from the Very Large Array (VLA) telescope. Images presented here are sensitive to rms=60 ?Jy and feature high angular resolution ( ??). A complete s le of discrete radio sources have been catalogued and analyzed across 17 in idual VLA projects. We identified a total of 864 unique discrete radio sources across the field of M31. One of the most prominent regions in M31 is the ring feature for which we estimated total integrated flux of 706 mJy at ?=20 cm. We compare here detected sources to those listed in Gelfand et al. (2004) at ?=92 cm and find 118 sources in common to both surveys. The majority (61%) of these sources exhibit a spectral index of ? -0.6 indicating that their emission is predominantly non-thermal in nature, that is more typical for background objects.
Biodegradability of Poly-3-hydroxybutyrate/Bacterial Cellulose Composites under Aerobic Conditions, Measured via Evolution of Carbon Dioxide and Spectroscopic and Diffraction Methods
Publisher: American Chemical Society (ACS)
Date: 28-07-2015
DOI: 10.1021/ES5044485
Abstract: Poly-3-hydroxybutyrate (PHB) and bacterial cellulose (BC) are both natural polymeric materials that have the potential to replace traditional, nonrenewable polymers. In particular, the nanofibrillar form of bacterial cellulose makes it an effective reinforcement for PHB. Neat PHB, bacterial cellulose, and a composite of PHB/BC produced with 10 wt % cellulose were composted under accelerated aerobic test conditions, with biodegradability measured by the carbon dioxide evolution method, in conjunction with spectroscopic and diffraction methods to assess crystallinity changes during the biodegradation process. The PHB/BC composite biodegraded at a greater rate and extent than that of PHB alone, reaching 80% degradation after 30 days, whereas PHB did not reach this level of degradation until close to 50 days of composting. The relative crystallinity of PHB and PHB in the PHB/BC composite was found to increase in the initial weeks of degradation, with degradation occurring primarily in the amorphous region of the material and some recrystallization of the amorphous PHB. Small angle X-ray scattering indicates that the change in PHB crystallinity is accompanied by a change in morphology of semicrystalline lamellae. The increased rate of biodegradability suggests that these materials could be applicable to single-use applications and could rapidly biodegrade in compost on disposal.
ASSURED‐compliant point‐of‐care diagnostics for the detection of human viral infections
Publisher: Wiley
Date: 08-06-2021
DOI: 10.1002/RMV.2263
Abstract: Viral disease outbreaks have been always a threat to global public health making affordable, rapid and accurate diagnostics highly important tools to slow down the spread of viruses and decrease the mortality rate. Point‐of‐care (POC) diagnostics have emerged as a strong tool for the diagnosis of viral infections, especially in countries where health‐care systems are inadequate to provide proper services to all citizens. According to the World Health Organization, an ideal POC diagnostic must be Affordable, Sensitive, Specific, User‐friendly, Rapid/Robust, Equipment‐free and Deliverable (ASSURED). This review surveys carefully each ASSURED criterion and identifies where existing viral POC diagnostics fail to meet these criteria. Given the widespread concern with plastic pollution, we also propose the addition of 'disposability' to the existing ASSURED criteria and consider the letter “D” as the representative of both Deliverable and Disposable. Next, the POC tests used for the diagnosis of several common human viral infections which met all the ASSURED criteria (ASSURED‐compliant) are described in detail. Finally, the future of ASSURED‐compliant POC diagnostics, capable of generating comparable results to the viral diagnostic gold standards, is discussed.
Light coupling and propagation in composite optical fiber-slab waveguides
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 1995
DOI: 10.1109/50.365213
Dispersion, migration, and ‘network-like’ structure formation of multiwall carbon nanotubes in co-continuous, binary immiscible blends of polyamide 6 and acrylonitrile-butadiene-styrene copolymer duri
Publisher: Wiley
Date: 11-03-2014
DOI: 10.1002/PEN.23904
Some issues on nanoindentation method to measure the elastic modulus of particles in composites
Publisher: Elsevier BV
Date: 12-2011
The effect of crystallinity on chain mobility and free volume in the amorphous regions of a miscible polycarbonate/polyester blend
Publisher: Wiley
Date: 05-1994
The simultaneous addition of styrene maleic anhydride copolymer and multiwall carbon nanotubes during melt-mixing on the morphology of binary blends of polyamide6 and acrylonitrile butadiene styrene c
Publisher: Wiley
Date: 11-03-2014
DOI: 10.1002/PEN.23905
Fouling and cleaning of polymer-entwined graphene oxide nanocomposite membrane for forward osmosis process
Publisher: Informa UK Limited
Date: 19-10-2018
Effect of crosslinking density on the physical properties of interpenetrating polymer networks of polyurethane and 2-hydroxyethyl methacrylate-teminated polyurethane
Publisher: Springer Science and Business Media LLC
Date: 07-1998
DSC studies of the curing mechanisms and kinetics of DGEBA using imidazole curing agents
Publisher: Elsevier BV
Date: 05-2000
Effect of different microwave-based treatments on multi-walled carbon nanotubes
Publisher: Springer Science and Business Media LLC
Date: 13-03-2009
Dielectric relaxation spectra of two side chain liquid crystalline homopolymers and their copolymers
Publisher: Elsevier BV
Date: 12-1996
Nature of residual unsaturation during cure of dimethacrylates examined by CPPEMAS carbon-13 NMR and simulation using a kinetic gelation model
Publisher: American Chemical Society (ACS)
Date: 09-1989
DOI: 10.1021/MA00199A010
Preparation and characterization of uniaxial poly(lactic acid)-based self-reinforced composites
Publisher: Elsevier BV
Date: 09-2015
Cardiovascular and metabolic complications during androgen deprivation: Exercise as a potential countermeasure
Publisher: Springer Science and Business Media LLC
Date: 02-06-2009
DOI: 10.1038/PCAN.2009.12
Abstract: Apart from the well-established adverse musculoskeletal and sexual health effects of androgen deprivation therapy (ADT), evidence is accumulating of substantial ADT-related cardiovascular and metabolic complications, which may impact quality of life and overall survival. In this brief review we discuss (1) the incidence of cardiovascular and metabolic complications during/following ADT from large cohort studies, (2) the increased risk factors for cardiovascular and metabolic disease from cross-sectional and prospective studies and (3) the use of physical exercise as a countermeasure in this new era of ADT-related toxicity. It is clear that exercise has the potential to provide a myriad of benefits to men undergoing ADT that may result in reduced morbidity and mortality, and subsequently improve quality of life.
Development of a Paper-Based Microfluidic System for a Continuous High-Flow-Rate Fluid Manipulation
Publisher: American Chemical Society (ACS)
Date: 15-04-2020
Synthesis and electromagnetic interference shielding properties of iron oxide/polypyrrole nanocomposites
Publisher: Wiley
Date: 20-09-2011
DOI: 10.1002/PEN.21813
The synthesis of high molecular weight polybutene-1 catalyzed by Cp??Ti(OBz)3/MAO
Publisher: Wiley
Date: 2001
Vertically Aligned Gold Nanowires as Stretchable and Wearable Epidermal Ion-Selective Electrode for Noninvasive Multiplexed Sweat Analysis
Publisher: American Chemical Society (ACS)
Date: 18-02-2020
Fast-responsive monolithic hydrogels as draw agent for forward osmosis membrane process
Publisher: Informa UK Limited
Date: 19-05-2017
NMR of tracer molecules in networks
Publisher: Elsevier BV
Date: 1985
Toughening of a trifunctional epoxy system. II. Thermal characterization of epoxy/amine cure
Publisher: Wiley
Date: 20-06-1996
DOI: 10.1002/(SICI)1097-4628(19960620)60:12<2251::AID-APP24>3.0.CO;2-8
Nanostructured ZrO2-Coated TiO2 Electrodes for Dye-Sensitised Solar Cells
Publisher: Springer Science and Business Media LLC
Date: 12-2004
Grafting Nature-Inspired and Bio-Based Phenolic Esters onto Cellulose Nanocrystals Gives Biomaterials with Photostable Anti-UV Properties
Publisher: Wiley
Date: 05-10-2020
Highly efficient low voltage electron emission from directly spinnable carbon nanotube webs
Publisher: Elsevier BV
Date: 06-2013
The effect of compatibilization on the behavior of a polycarbonate/polymer liquid crystal blend
Publisher: Wiley
Date: 04-1996
DOI: 10.1002/PEN.10492
Fast deswelling of nanocomposite polymer hydrogels via magnetic field-induced heating for emerging FO desalination
Publisher: American Chemical Society (ACS)
Date: 29-05-2013
DOI: 10.1021/ES4005152
Abstract: Freshwater shortage is one of the most pressing global issues. Forward osmosis (FO) desalination technology is emerging for freshwater production from saline water, which is potentially more energy-efficient than the current reverse osmosis process. However, the lack of a suitable draw solute is the major hurdle for commercial implementation of the FO desalination technology. We have previously reported that thermoresponsive hydrogels can be used as the draw agent for a FO process, and this new hydrogel-driven FO process holds promise for further development for practical application. In the present work, magnetic field-induced heating is explored for the purpose of developing a more effective way to recover water from swollen hydrogel draw agents. The composite hydrogel particles are prepared by copolymerization of sodium acrylate and N-isopropylacrylamide in the presence of magnetic nanoparticles (γ-Fe2O3, <50 nm). The results indicate that the magnetic heating is an effective and rapid method for dewatering of hydrogels by generating the heat more uniformly throughout the draw agent particles, and thus, a dense skin layer commonly formed via conventional heating from the outside of the particle is minimized. The FO dewatering performance is affected by the loading of magnetic nanoparticles and magnetic field intensity. Significantly enhanced liquid water recovery (53%) is achieved under magnetic heating, as opposed to only around 7% liquid water recovery obtained via convection heating. Our study shows that the magnetic heating is an attractive alternative stimulus for the extraction of highly desirable liquid water from the draw agent in the polymer hydrogel-driven forward osmosis process.
A novel ex vivo immunoproteomic approach characterising Fasciola hepatica tegumental antigens identified using immune antibody from resistant sheep
Publisher: Elsevier BV
Date: 08-2017
DOI: 10.1016/J.IJPARA.2017.02.004
Abstract: A more thorough understanding of the immunological interactions between Fasciola spp. and their hosts is required if we are to develop new immunotherapies to control fasciolosis. Deeper knowledge of the antigens that are the target of the acquired immune responses of definitive hosts against both Fasciola hepatica and Fasciola gigantica will potentially identify candidate vaccine antigens. Indonesian Thin Tail sheep express a high level of acquired immunity to infection by F. gigantica within 4weeks of infection and antibodies in Indonesian Thin Tail sera can promote antibody-dependent cell-mediated cytotoxicity against the surface tegument of juvenile F. gigantica in vitro. Given the high protein sequence similarity between F. hepatica and F. gigantica, we hypothesised that antibody from F. gigantica-infected sheep could be used to identify the orthologous proteins in the tegument of F. hepatica. Purified IgG from the sera of F. gigantica-infected Indonesian Thin Tail sheep collected pre-infection and 4weeks p.i. were incubated with live adult F. hepatica ex vivo and the immunosloughate (immunoprecipitate) formed was isolated and analysed via liquid chromatography-electrospray ionisation-tandem mass spectrometry to identify proteins involved in the immune response. A total of 38 proteins were identified at a significantly higher abundance in the immunosloughate using week 4 IgG, including eight predicted membrane proteins, 20 secreted proteins, nine proteins predicted to be associated with either the lysosomes, the cytoplasm or the cytoskeleton and one protein with an unknown cellular localization. Three of the membrane proteins are transporters including a multidrug resistance protein, an amino acid permease and a glucose transporter. Interestingly, a total of 21 of the 38 proteins matched with proteins recently reported to be associated with the proposed small exosome-like extracellular vesicles of adult F. hepatica, suggesting that the Indonesian Thin Tail week 4 IgG is either recognising in idual proteins released from extracellular vesicles or is immunoprecipitating intact exosome-like extracellular vesicles. Five extracellular vesicle membrane proteins were identified including two proteins predicted to be associated with vesicle transport/ exocytosis (VPS4, vacuolar protein sorting-associated protein 4b and the Niemann-Pick C1 protein). RNAseq analysis of the developmental transcription of the 38 immunosloughate proteins showed that the sequences are expressed over a wide abundance range with 21/38 transcripts expressed at a relatively high level from metacercariae to the adult life cycle stage. A notable feature of the immunosloughates was the absence of cytosolic proteins which have been reported to be secreted markers for damage to adult flukes incubated in vitro, suggesting that the proteins observed are not inadvertent contaminants leaking from damaged flukes ex vivo. The identification of tegument protein antigens shared between F. gigantica and F. hepatica is beneficial in terms of the possible development of a dual purpose vaccine effective against both fluke species.
Sequence analysis of Toll-like receptor genes 1-10 of goat (Capra hircus).
Publisher: Elsevier BV
Date: 04-2011
Molecular dynamics in a miscible polyester blend
Publisher: Wiley
Date: 10-1996
DOI: 10.1002/(SICI)1099-0488(199610)34:14<2419::AID-POLB11>3.0.CO;2-G
Glass transition behaviour of poly(ether ether ketone)/poly(ether imide) blends
Publisher: Elsevier BV
Date: 1996
Hydrogel-polyurethane interpenetrating network material as an advanced draw agent for forward osmosis process
Publisher: Elsevier BV
Date: 06-2016
DOI: 10.1016/J.WATRES.2016.03.072
Abstract: Water desalination and purification are critical to address the global issue of the shortage of clean water. Forward osmosis (FO) desalination is an emerging low-cost technology for clean water production from saline water. The lack of a suitable draw agent is one of hurdle for the commercialization of FO desalination technology. Recently, the thermoresponsive hydrogel has been demonstrated to be a potential draw agent for the FO process. However, the commonly used hydrogel powder shows a much lower flux than other kind of draw agent such as inorganic salts. In this work, a hydrogel-polyurethane interpenetrating network (HPIPN) with monolith form was prepared by controlling the radical polymerization of the monomers (N-isopropylacrylamide and sodium acrylate) in the macropores (∼400 μm) of commercial polyurethane foam (PUF). These HPIPN composites show a flux as high as 17.9 LMH, which is nearly 8 times than that of hydrogel powders (2.2 LMH). The high flux is attributed to the 3-D continuous hydrogel-polyurethane interpenetrating network, which can effectively enhance the water transport inside the monolith.
The use of plasma treatment for simultaneous carbonization and reduction of iron oxide/polypyrrole core/shell nanoparticles
Publisher: Springer Science and Business Media LLC
Date: 19-09-2012
Photocuring of 4-arm coumarin-functionalised monomers to form highly photoreversible crosslinked epoxy coatings
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8PY01767K
Abstract: Highly photoreversible photocurable crosslinked epoxy coatings that can heal substantial surface damage were formed by the synthesis of unique monomers.
Insights into the hierarchical structure and digestion rate of alkali-modulated starches with different amylose contents
Publisher: Elsevier BV
Date: 06-2016
DOI: 10.1016/J.CARBPOL.2016.02.064
Abstract: Combined analytical techniques were used to explore the effects of alkali treatment on the multi-scale structure and digestion behavior of starches with different amylose/amylopectin ratios. Alkali treatment disrupted the amorphous matrix, and partial lamellae and crystallites, which weakened starch molecular packing and eventually enhanced the susceptibility of starch to alkali. Stronger alkali treatment (0.5% w/w) made this effect more prominent and even transformed the dual-phase digestion of starch into a triple-phase pattern. Compared with high-amylose starch, regular maize starch, which possesses some unique structure characteristics typically as pores and crystallite weak points, showed evident changes of hierarchical structure and in digestion rate. Thus, alkali treatment has been demonstrated as a simple method to modulate starch hierarchical structure and thus to realize the rational development of starch-based food products with desired digestibility.
Melt rheology of aliphatic hyperbranched polyesters with various molecular weights
Publisher: Elsevier BV
Date: 03-2001
Experimental investigation on the thermal and mechanical properties of nanoclay-modified adhesives used for bonding CFRP to concrete substrates
Publisher: Elsevier BV
Date: 03-2012
Highly permeable thermally rearranged polymer composite membranes with a graphene oxide scaffold for gas separation
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8TA02256A
Abstract: A 2D scaffold of graphene oxide is formed inside a polymer to assist the fabrication of a defect-free and ultrathin ( nm) selective layer of thermally rearranged polybenzoxazole- co -imide membrane for energy-efficient CO 2 separation.
Influence of the polymer structure and nanotube concentration on the conductivity and rheological properties of polyethylene/CNT composites
Publisher: Elsevier BV
Date: 05-2008
Preparation of carbon nanoparticles and nanofibers by a simple microwave based method and studying the field emission properties
Publisher: Elsevier BV
Date: 05-2011
Vertical Gold Nanowires Stretchable Electrochemical Electrodes
Publisher: American Chemical Society (ACS)
Date: 11-10-2018
DOI: 10.1021/ACS.ANALCHEM.8B03423
Abstract: Conventional electrodes produced from gold or glassy carbon are outstanding electrochemical platforms for biosensing applications due to their chemical inertness and wide electrochemical window, but are intrinsically rigid and planar in nature. Hence, it is challenging to seamlessly integrate them with soft and curvilinear biological tissues for real-time wearable or implantable electronics. In this work, we demonstrate that vertically gold nanowires (v-AuNWs) possess an enokitake-like structure, with the nanoparticle (head) on one side and nanowires (tail) on the opposite side of the structure, and can serve as intrinsically stretchable, electrochemical electrodes due to the stronger nanowire-elastomer bonding forces preventing from interfacial delamination under strains. The exposed head side of the electrode comprising v-AuNWs can achieve a detection limit for H
Preparation of thermotrophic liquid crystalline polymers involving a novel spacer unit based on vinylacetic acid
Publisher: Springer Science and Business Media LLC
Date: 08-1992
DOI: 10.1007/BF00558031
Aligned silane-treated MWCNT/liquid crystal polymer films
Publisher: IOP Publishing
Date: 25-03-2008
DOI: 10.1088/0957-4484/19/17/175602
Abstract: We report on a method to preferentially align multiwall carbon nanotubes (MWCNTs) in a liquid crystalline matrix to form stable composite thin films. The liquid crystalline monomeric chains can be crosslinked to form acrylate bridges, thereby retaining the nanotube alignment. Further post-treatment by ozone etching of the composite films leads to an increase in bulk conductivity, leading to higher emission currents when examined under conducting scanning probe microscopy. The described methodology may facilitate device manufacture where electron emission from nanosized tips is important in the creation of new display devices.
Forward osmosis desalination using polymer hydrogels as a draw agent: Influence of draw agent, feed solution and membrane on process performance
Publisher: Elsevier BV
Date: 2013
DOI: 10.1016/J.WATRES.2012.09.049
Abstract: We have previously reported the use of hydrogel particles as the draw agent for forward osmosis desalination. In the present work, the effects of draw agent, feed concentration and membrane on the process performance were systematically examined. Our results showed that the incorporation of carbon filler particles in polymer hydrogels led to enhanced swelling ratios of the draw agents and thus higher water fluxes in the FO process. The composite polymer hydrogel particles of sizes ranging from 100 μm to 200 μm as draw agents induced greater water fluxes in FO desalination as compared with those with larger particle sizes (500-700 μm). Similar to other types of draw solutes, as the salt concentration in the feed increased, the water flux created by the polymer hydrogel draw agent decreased the use of a cellulose triacetate forward osmosis membrane resulted in higher water flux compared with the use of a polyamide composite reverse osmosis membrane.
Synthesis of a diamine cross-linker containing Diels–Alder adducts to produce self-healing thermosetting epoxy polymer from a widely used epoxy monomer
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2PY20611K
Melt-mixed composites of multi-walled carbon nanotubes and thermotropic liquid crystalline polymer: Morphology, rheology and mechanical properties
Publisher: Elsevier BV
Date: 10-2017
Effect of Cationic Polyacrylamides on the Interactions between Cellulose Fibers
Publisher: American Chemical Society (ACS)
Date: 08-02-2012
DOI: 10.1021/LA2049579
Abstract: The interaction between cellulose fibers in the presence of cationic polyacrylamide (CPAM) was analyzed by rheology as a function of polyelectrolyte concentration, charge density, and molecular weight. CPAM was found to strongly influence the yield stress of cellulose suspensions low doses of CPAM increased the yield stress, but at higher concentrations the yield stress declined. The charge density of the CPAM was the most significant factor in how yield stress responded to CPAM concentration this effect was able to be normalized to a master curve by considering only the charged fraction of the polymer. The molecular weight of CPAM s les had some effect at high concentrations, but for lower CPAM doses the yield stress was independent of molecular weight over the range studied. The data suggest that CPAM modifies the interaction between cellulose surfaces via several mechanisms, with electrostatic interactions in the form of charge neutralization and charged patch formation dominating polymer bridging and steric repulsion also influence the overall balance of forces between interacting cellulose fibers.
Morphologies and microstructures of cornstarches with different amylose–amylopectin ratios studied by confocal laser scanning microscope
Publisher: Elsevier BV
Date: 09-2009
Improvement and tuning of the performance of light-healable polymers by variation of the monomer content
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8PY01203B
Abstract: High-performing crosslinked epoxy coatings that possess room temperature self-healing ability by the use of a newly synthesised dynamic diamine crosslinker.
Low-voltage electrostatic modulation of ion diffusion through layered graphene-based nanoporous membranes
Publisher: Springer Science and Business Media LLC
Date: 02-07-2018
DOI: 10.1038/S41565-018-0181-4
Abstract: Ion transport in nanoconfinement differs from that in bulk and has been extensively researched across scientific and engineering disciplines
Architectured Polymeric Materials Produced by Additive Manufacturing
Publisher: Springer International Publishing
Date: 2019
The thermally stimulated current technique applied to side-chain liquid-crystal polymers
Publisher: Elsevier BV
Date: 12-1989
Internal structures and phase-transitions of starch granules during gelatinization
Publisher: Elsevier BV
Date: 02-2011
The radical polymerization of dimethacrylate monomers—the use of NMR spectrometry to follow the development of network structure
Publisher: Elsevier BV
Date: 1989
Response to Osmotic Pressure versus Swelling Pressure: Comment on “Bifunctional Polymer Hydrogel Layers As Forward Osmosis Draw Agents for Continuous Production of Fresh Water Using Solar Energy”
Publisher: American Chemical Society (ACS)
Date: 19-03-2014
DOI: 10.1021/ES5011016
In situ modifications to bacterial cellulose with the water insoluble polymer poly-3-hydroxybutyrate
Publisher: Elsevier BV
Date: 02-2013
DOI: 10.1016/J.CARBPOL.2012.11.007
Abstract: Bacterial cellulose is a pure, highly crystalline form of cellulose produced from the bacteria Gluconacetobacter xylinus that has become of increasing interest in materials science due to its nanofibrillar structure, ideal for incorporation into other materials as a reinforcing material. The morphology and properties of bacterial cellulose can be altered by including additives not specifically required for growth of the bacteria in liquid media. The bioplastic poly-3-hydroxybutyrate (PHB), along with hydroxypropylmethyl cellulose (HPMC) and Tween 80 were selected and added to the growth media at different concentrations to examine their impact on the resulting cellulose, leading to changes in yield, crystallinity and morphology. The crystallinity index of the nanofibrils was found to vary greatly when using these different methods to calculate it from XRD data, indicating that particular care must be taken when comparing crystallinity results reported in the literature. PHB was able to be incorporated into the bacterial cellulose fibrils during production, increasing the potential for favourable interactions of the bacterial cellulose microfibrils with a neat PHB matrix with the aim of making a fully degradable nanocomposite system.
Relationship between morphologies and mechanical properties of hydroxypropyl methylcellulose/hydroxypropyl starch blends
Publisher: Elsevier BV
Date: 11-2016
DOI: 10.1016/J.CARBPOL.2016.07.029
Abstract: Edible films from the blending hydroxypropyl methylcellulose (HPMC) with hydroxypropyl starch (HPS) have been developed. This work focuses on the relationship between morphologies and mechanical properties of such systems. To aid understanding of blend morphology, a new technique used to identify the two phases through dying of the HPS by iodine has been developed, which provided a simple and convenient way to clearly distinguish between HPMC and HPS phases. It was found that the blend system is immiscible and there is phase transition point depending on blending ratio and solution concentration. The lower transparency point of the blend and phase transition reign of HPMC from continuous phase to separated phase correspond with the variation of tensile modulus. The modulus and elongation decreased with increased solution concentration, which is correlatable with the morphologies present, where it was found that the HPMC gradually changed from a continuous phase to a distinct phase.
Rheological and gel properties of hydroxypropyl methylcellulose/hydroxypropyl starch blends
Publisher: Springer Science and Business Media LLC
Date: 08-10-2014
Harvesting fibrils from bacterial cellulose pellicles and subsequent formation of biodegradable poly-3-hydroxybutyrate nanocomposites
Publisher: Springer Science and Business Media LLC
Date: 28-08-2014
Toughening of a trifunctional epoxy system
Publisher: Elsevier BV
Date: 03-1995
Dynamic mechanical properties and cross-polarized, proton-enhanced, magic angle spinning carbon-13 NMR time constants of poly[oligo(ethylene glycol)dimethacrylates]
Publisher: American Chemical Society (ACS)
Date: 02-1989
DOI: 10.1021/MA00192A050
Preparation of chemically sintered ZnO films and their application in dye sensitized solar cells formed on plastic substrates
Publisher: Elsevier BV
Date: 2012
Bifunctional Polymer Hydrogel Layers As Forward Osmosis Draw Agents for Continuous Production of Fresh Water Using Solar Energy
Publisher: American Chemical Society (ACS)
Date: 04-11-2013
DOI: 10.1021/ES403266Y
Abstract: The feasibility of bilayer polymer hydrogels as draw agent in forward osmosis process has been investigated. The dual-functionality hydrogels consist of a water-absorptive layer (particles of a copolymer of sodium acrylate and N-isopropylacrylamide) to provide osmotic pressure, and a dewatering layer (particles of N-isopropylacrylamide) to allow the ready release of the water absorbed during the FO drawing process at lower critical solution temperature (32 °C). The use of solar concentrated energy as the source of heat resulted in a significant increase in the dewatering rate as the temperature of dewatering layer increased to its LSCT more rapidly. Dewatering flux rose from 10 to 25 LMH when the solar concentrator increased the input energy from 0.5 to 2 kW/m(2). Thermodynamic analysis was also performed to find out the minimum energy requirement of such a bilayer hydrogel-driven FO process. This study represents a significant step forward toward the commercial implementation of hydrogel-driven FO system for continuous production of fresh water from saline water or wastewaters.
A simple microwave-based method for preparation of Fe3O4/carbon composite nanoparticles
Publisher: Elsevier BV
Date: 08-2010
Effects of hydrophilic fillers on the thermal degradation of poly(lactic acid)
Publisher: Elsevier BV
Date: 09-2010
The effect of functionalization on structure and electrical conductivity of multi-walled carbon nanotubes
Publisher: Springer Science and Business Media LLC
Date: 18-03-2008
Comparative analysis of innate immune response following in vitro stimulation of sheep and goat peripheral blood mononuclear cells with bluetongue virus - Serotype 23
Publisher: Springer Science and Business Media LLC
Date: 22-09-2013
Microfiber-polymer hydrogel monolith as forward osmosis draw agent
Publisher: Elsevier BV
Date: 07-2016
Toll-Like Receptor Responses to Peste des petits ruminants Virus in Goats and Water Buffalo
Publisher: Public Library of Science (PLoS)
Date: 04-11-2014
13C-NMR parameters of some poly[oligo(ethylene glycol) dimethacrylates]
Publisher: Springer Science and Business Media LLC
Date: 06-1984
DOI: 10.1007/BF01045343
A model for the structural hysteresis in poling and thermal depoling of PZT ceramics
Publisher: Springer Science and Business Media LLC
Date: 10-1995
DOI: 10.1007/BF01154502
On the analysis of positron annihilation lifetime spectroscopy data in semicrystalline miscible polymer blend systems
Publisher: Wiley
Date: 31-05-1994
Interfacial Adhesion in Natural Fiber-Reinforced Polymer Composites
Publisher: Wiley
Date: 14-11-2015
Reinforcing brittle and ductile epoxy matrices using carbon nanotubes masterbatch
Publisher: Elsevier BV
Date: 06-2014
Effect of Vapour-Grown Carbon Nanofibres on Thermo-Mechanical Properties of High-Functionality Based Resin Used in CFRP Strengthening System Subjected Severe Service Conditions
Publisher: Springer International Publishing
Date: 27-06-2020
Thermo-mechanical characterization of VGCF-modified adhesive for bond between CFRP and concrete subjected to combined effect of temperature and humidity
Publisher: SAGE Publications
Date: 12-2014
DOI: 10.1260/1369-4332.17.12.1817
Abstract: Adhesives are employed in external strengthening of concrete structures by Carbon Fibre Reinforced Polymer (CFRP). Carbon-based composites are currently the most common type used to increase the strength of concrete members. The application of Carbon Fibre fabrics (CF fabric) to concrete members involves the use of a compatible bonding agent, and it is the modification of such bonding agents that is investigated in this paper. The investigation involves examining the effects of adding different concentrations of vapour-grown carbon nanofibres (VGCF) (0.5 wt%, 1 wt%, 1.5 wt% and 2 wt%) on the thermal and mechanical properties of the bonding agent. The effect of modification on the glass transition temperature and heat flow of the modified adhesive was explored using Differential Scanning Calorimetry (DSC) technique. It was found that T g reduces slightly or remains the same with the addition of VGCF to Part A of the adhesive and the highest reduction in T g was found when Part A was reinforced with 2 wt % VGCF. Agglomaration of the fibres was observed when VGCF was introduced into MBrace® Saturant epoxy adhesive using the speed mixer and a random orientation for the fibres was noted within the epoxy matrix. Peeling-off of CF fabric was the common failure mode as the loaded CFRP/concrete system was subjected to the combined effect of temperature and humidity after short periods of exposure to such severe conditions.
The effect of the nanotube oxidation on the rheological and electrical properties of CNT/HDPE nanocomposites
Publisher: Wiley
Date: 04-04-2017
DOI: 10.1002/PEN.24572
Small angle scattering in the Porod region from hydrated paper sheets at varying humidities
Publisher: Walter de Gruyter GmbH
Date: 08-2004
DOI: 10.1515/HF.2004.071
Abstract: The microscopic changes in the structure of paper at different equilibrium moisture contents were examined using the novel technique of contrast variation small angle neutron scattering (SANS). Contrast variation, by appropriate selection of the H 2 O:D 2 O ratio, was used to simplify the scattering from hydrated paper to a two-phase approximation. The two phases were paper polymers (cellulose, lignin and hemicelluloses) and a phase consisting of water and voids. The two-phase approximation is justified by consideration of the chemistry and density of each of the polymer species belonging to paper, and by matching the scattering length density of the sorbed moisture to air. The neutron intensity at the higher scattering angles examined was successfully fitted using the Porod law, which is applicable to scattering from a two-phase system at the high scattering angle limit. This limit is related to the specific surface area between the two phases. The limiting scattered intensity of neutrons was found to increase with increasing moisture content for a range of paper materials. It is concluded that the sorption of water increased the limiting intensity because water disrupted polymer-polymer bonding. The Porod law also predicts the slope of the intensity/scattering angle curve at the high scattering angle limit.
Development of a multiplex quantitative PCR assay for detection and quantification of DNA from Fasciola hepatica and the intermediate snail host, Austropeplea tomentosa, in water samples.
Publisher: Elsevier BV
Date: 08-2018
Polycrystalline Advanced Microporous Framework Membranes for Efficient Separation of Small Molecules and Ions
Publisher: Wiley
Date: 05-07-2019
Abstract: Advanced porous framework membranes with excellent selectivity and high permeability of small molecules and ions are highly desirable for many important industrial separation applications. There has been significant progress in the fabrication of polycrystalline microporous framework membranes (PMFMs) in recent years, such as metal-organic framework and covalent organic framework membranes. These membranes possess small pore sizes, which are comparable to the kinetic diameter of small molecules and ions on the angstrom scale, very low thickness, down to tens to hundreds of nanometers, highly oriented crystalline structures, hybrid membrane structures, and specific functional groups for enhancing membrane selectivity and permeability. Recent advances in the fabrication methods of advanced PMFMs are summarized. Following this, four emerging separation applications of these advanced microporous framework membranes, including gas separation, water desalination, ion separation, and chiral separation, are highlighted and discussed in detail. Finally, a summary and some perspectives of future developments and challenges in this exciting research field are presented.
Morphology of blends containing high concentrations of POSS nanoparticles in different polymer matrices
Publisher: Wiley
Date: 28-12-2009
DOI: 10.1002/PEN.21612
Microwave processing of TiO2 blocking layers for dye-sensitized solar cells
Publisher: Springer Science and Business Media LLC
Date: 15-07-2006
Paper surfaces functionalized by nanoparticles
Publisher: Elsevier BV
Date: 03-2011
DOI: 10.1016/J.CIS.2011.01.004
Abstract: Nanomaterials with unique electronic, optical and catalytic properties have recently been at the forefront of research due to their tremendous range of applications. Taking gold, silver and titania nanoparticles as ex les, we have reviewed the current research works on paper functionalized by these nanoparticles. The functionalization of paper with only a very small concentration of nanoparticles is able to produce devices with excellent photocatalytic, antibacterial, anti-counterfeiting, Surface Enhanced Raman Scattering (SERS) and Surface Plasmon Resonance (SPR) performances. This review presents a brief overview of the properties of gold, silver and titania nanoparticles which contribute to the major applications of nanoparticles-functionalized paper. Different preparation methods of the nanoparticles-functionalized paper are reviewed, focusing on their ability to control the morphology and structure of paper as well as the spatial location and adsorption state of nanoparticles which are critical in achieving their optimum applications. In addition, main applications of the nanoparticles-functionalized papers are highlighted and their critical challenges are discussed, followed by perspectives on the future direction in this research field. Whilst a few studies to date have characterized the distribution of nanoparticles on paper substrates, none have yet optimized paper as a nanoparticles' substrate. There remains a strong need to improve understanding on the optimum adsorption state of nanoparticles on paper and the heterogeneity effects of paper on the properties of these nanoparticles.
Copper Nanowire‐Filled Soft Elastomer Composites for Applications as Thermal Interface Materials
Publisher: Wiley
Date: 10-07-2017
Controlling the transparency and rheology of nanocellulose gels with the extent of carboxylation
Publisher: Elsevier BV
Date: 10-2020
Effect of diblock copolymer surfactant on the microstructure and EM properties of CNT nanocomposites
Publisher: Wiley
Date: 18-04-2011
DOI: 10.1002/APP.33993
First insight into CD59-like molecules of adult Fasciola hepatica
Publisher: Elsevier BV
Date: 09-2014
DOI: 10.1016/J.EXPPARA.2014.06.012
Abstract: The present study focussed on investigating CD59-like molecules of Fasciola hepatica. A cDNA encoding a CD59-like protein (termed FhCD59-1) identified previously in the membrane fraction of the F. hepatica tegument was isolated. This homologue was shown to encode a predicted open reading frame (ORF) of 122 amino acids (aa) orthologous to human CD59 with a 25 aa signal peptide, a mature protein containing 10 cysteines and a conserved CD59/Ly-6 family motif "CCXXXXCN". An analysis of cDNAs from two different adult specimens of F. hepatica revealed seven variable types of FhCD59-1 sequences, designated FhCD59-1.1 to FhCD59-1.7, which had 94.3-99.7% amino acid sequence identity upon pairwise comparison. Molecular modeling of FhCD59-1.1 with human CD59 confirmed the presence of the three-finger protein domain found in the CD59 family and predicted three disulphide bonds in the F. hepatica sequence. The interrogation of F. hepatica databases identified two additional sequences, designated FhCD59-2 and FhCD59-3, which had only 23.4-29.5% amino acid identity to FhCD59-1.1. Orthologues of the inferred CD59 protein sequences of F. hepatica were also identified in other flatworms, including Fasciola gigantica, Fascioloides magna, Schistosoma haematobium, Schistosoma japonicum, Schistosoma mansoni, Clonorchis sinensis, Opisthorchis viverrini, Taenia solium, Echinococcus granulosus and the free living Schmidtea mediterannea. The results revealed a considerable degree of sequence complexity in the CD59-like sequence families in F. hepatica and flatworms. Phylogenetic analysis of CD59-like aa sequences from F. hepatica and flatworms showed that FhCD59-2 clustered with the known surface-associated protein SmCD59-2 of S. mansoni. Relatively well-supported clades specific to schistosomes, fasciolids and opisthorchiids were identified. The qPCR analysis of gene transcription showed that the relative expression of these 3 FhCD59-like sequences varied by 11-47-fold during fluke maturation, from the newly excysted juvenile (NEJ) to the adult stage. These findings suggest that different FhCD59-like sequences play distinct roles during the development of F. hepatica.
Significantly enhanced water flux in forward osmosis desalination with polymer-graphene composite hydrogels as a draw agent
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C2RA22173J
Synthetic multi-level matrices for bone regeneration
Publisher: Humana Press
Date: 2011
Correction to: Standing enokitake-like nanowire films for highly stretchable elastronics (ACS Nano (2018) 12:10 (9742-9749) DOI: 10.1021/acsnano.8b05019)
Publisher: American Chemical Society (ACS)
Date: 29-10-2018
Scalable production of graphene via wet chemistry: Progress and challenges
Publisher: Elsevier BV
Date: 03-2015
Light-Healable Epoxy Polymer Networks via Anthracene Dimer Scission of Diamine Crosslinker
Publisher: American Chemical Society (ACS)
Date: 07-05-2019
Abstract: Two anthracene-based diamine crosslinkers were used to cure a range of commercially available monomers to produce four highly photoreversible crosslinked epoxy polymers. Through careful selection of the epoxy monomers used, the properties of the resultant polymer networks were varied to create a coating material that possessed room-temperature light-stimulated healing. Of the four coatings created, the best healing performance was exhibited by the two most flexible systems, both of these also exhibited the thermal and mechanical performance necessary for coatings. By using anthracene, the utilization of a wide range of wavelengths in the healing process is possible, which in applications such as industrial coatings would be of significant benefit.
Influence of processing history on the properties of a thermotropic copolyester/polycarbonate blend
Publisher: Wiley
Date: 1995
Moisture-activated dynamics on crystallite surfaces in cellulose
Publisher: Springer Science and Business Media LLC
Date: 24-01-2019
Voltage-Gated Ion Transport in Two-Dimensional Sub-1 nm Nanofluidic Channels
Publisher: American Chemical Society (ACS)
Date: 17-09-2019
Abstract: Voltage-gated nanofluidic systems have shown a wide range of potential applications in biosensors, energy harvest, and separation. Two-dimensional (2D) nanofluidic membranes fabricated with electrically conductive nanosheets have high ion conductivity and voltage-gated ion transport behaviors. However, the voltage-gating effect of the sub-nanometer-sized 2D channel membranes has not been well-investigated. In this work, a high-performance voltage-gated 2D nanofluidic device is constructed by assembling MXene nanosheets into a laminar membrane with sub-1 nm interlayer channels. By applying external voltage to the membrane, the ion conductivity of the device is enhanced by positive voltages and reduced by negative voltages, exhibiting a high voltage-gating on-off ratio of ∼10. The on-off ratio is found to be dependent on ion concentration and ion species. This work demonstrates that 2D membranes with interlayer spacings comparable to those of hydrated ion diameters can achieve high and tunable voltage-gating function, which provides a strategy to construct devices for highly efficient on-demand ion transport.
Formation of polyelectrolyte-gold nanoparticle necklaces on paper
Publisher: Elsevier BV
Date: 09-2013
DOI: 10.1016/J.JCIS.2013.05.011
Abstract: This work reports a simple method to form and visualize in idual polyelectrolyte-nanoparticle necklace-like structures on paper, which is applicable to other porous surfaces. In this work, one-dimensional necklaces of negatively charged gold nanoparticles (AuNPs) have been electrostatically assembled along the backbone of a cationic polyacrylamide (CPAM) chain adsorbed on paper. The process involves rapidly passing a dilute CPAM solution through filter paper, adsorbing the polyelectrolyte on the surface, followed by the immediate filtration of an AuNP suspension through the same filter paper. The nanoparticles used were negatively charged, citrate ion capped AuNPs with an average diameter of 20 nm. Scanning electron microscopy images of the dried paper s le showed that the AuNP necklaces were adsorbed in a perpendicular direction to that of the cellulose fibers and along the length of the CPAM molecules which were draped over the fibers. The effects of CPAM polymer concentration, charge density, and molecular weight on such assembly of AuNPs were studied. This technique enables the visualization of polyelectrolyte molecules and the formation of very well organized and reproducible polyelectrolyte-nanoparticle necklaces on a porous, three-dimensional substrate.
Development of microstructure and evolution of rheological characteristics of a highly concentrated emulsion during emulsification
Publisher: Elsevier BV
Date: 11-2017
Conditions of applying Oliver-Pharr method to the nanoindentation of particles in composites
Publisher: Elsevier BV
Date: 06-2012
Investigation of thermal and fire performance of novel hybrid geopplymer composites
Publisher: Springer Science and Business Media LLC
Date: 07-2004
Compatibilized linear low‐density polyethylene/isotactic polypropylene blends studied by positron annihilation lifetime spectroscopy
Publisher: Wiley
Date: 1995
Molecular characterisation and vaccine efficacy of two novel developmentally regulated surface tegument proteins of Fasciola hepatica
Publisher: Elsevier BV
Date: 10-2020
The effect of incorporation of POSS units on polymer blend compatibility
Publisher: Wiley
Date: 15-09-2009
DOI: 10.1002/APP.31225
Synthesis of POSS–polyurethane hybrids using octakis(m‐isoprenyl‐α,α′‐dimethylbenzylisocyanato dimethylsiloxy) octasilsesquioxane (Q8M8TMI) as a crosslinking ag
Publisher: Wiley
Date: 24-09-2013
DOI: 10.1002/POLA.26934
Processing/property relationships of a thermotropic copolyester: 1. Effect of capillary die aspect ratio
Publisher: Elsevier BV
Date: 1993
One-shot TEMPO-periodate oxidation of native cellulose
Publisher: Elsevier BV
Date: 12-2019
DOI: 10.1016/J.CARBPOL.2019.115292
Abstract: TEMPO/NaClO/NaBr and sodium periodate were combined in a one-shot reaction to oxidise cellulose from bleached pulp. Oxidation of cellulose forms two fractions: a highly-carboxylated water-insoluble (up to 1.9 mmol COO
Effect of plasticizers on microstructure, compatibility and mechanical property of hydroxypropyl methylcellulose/hydroxypropyl starch blends
Publisher: Elsevier BV
Date: 11-2018
DOI: 10.1016/J.IJBIOMAC.2018.07.064
Abstract: Polymer film blends of hydroxypropyl methylcellulose (HPMC) and hydroxypropyl starch (HPS) were produced with an incorporation of three different plasticizers, including polyethylene glycol (PEG), glycerol and 1, 2-propylene glycol (PG) respectively, and the influence of these plasticizers were compared and studied by X-ray Diffraction (XRD), small angel X-ray Scattering (SAXS), optical microscope and dynamic mechanical analysis (DMA). Results showed that multi-scale structure of the blends were greatly affected by the plasticizers and therefore caused significant changes in mechanical properties. In the course, blends with glycerol presented lamellar structure rather than self-similar structure. Moreover, crystalline degree was increased with an order of glycerol > PEG > PG, whereas the compactness of amorphous region of all s les was decreased by PEG and PG.
Grafting Nature-Inspired and Bio-Based Phenolic Esters onto Cellulose Nanocrystals Gives Biomaterials with Photostable Anti-UV Properties
Publisher: Wiley
Date: 12-2020
Front Cover: Grafting Nature‐Inspired and Bio‐Based Phenolic Esters onto Cellulose Nanocrystals Gives Biomaterials with Photostable Anti‐UV Properties (ChemSusChem 24/2020)
Publisher: Wiley
Date: 24-11-2020
The effect of die aspect ratio on the rheological properties of a thermotropic copolyester
Publisher: Society of Rheology
Date: 08-1992
DOI: 10.1122/1.550301
Polymer Brushes on Multiwalled Carbon Nanotubes by Activators Regenerated by Electron Transfer for Atom Transfer Radical Polymerization
Publisher: Wiley
Date: 28-07-2011
DOI: 10.1002/POLA.24872
Abstract: The synthesis and characterization of multiwalled carbon nanotube (MWCNT) polymer brushes produced by activators regenerated by electron transfer (ARGET) in atom‐transfer radical polymerization (ATRP) was discussed. The polymer brushes were synthesized by esterification of the MWCNT carboxylic acid groups with hydroxyethyl‐2‐bromoisobutyrate and subsequently used in ARGET ATRP. This created a well defined living polymer brush carbon nanotube of comparatively low polydispersity and a polymer layer 10 nm thick. As, ARGET ATRP uses only minute concentrations of copper (II) catalyst, and is less sensitive to air compared to other living polymerization techniques, this process is a more industry‐compatible route for the commercialization of such materials. The structural and chemical properties were explored by a range of techniques including high resolution transmission electron microscopy, gel permeation chromatography, elemental analysis, Fourier transform infrared spectroscopy, thermogravimetric analysis, and differential scanning calorimetry. In addition, the polymer brush nanotubes were explored for their potential use in films and as fillers. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011
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