Materials Literature
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Abstract The main objective of this work was to reduce barriers that prevent the usage of starch‐based foams by understanding the effect and the sequence of dual‐modification of crosslinked (XL) and acetylated (Ac) starch in one continuous supercritical fluid reactive extrusion (SCFX) process on wetting properties, ph…
We present a two-stage fabrication method for Zn 2 TiO 4 −ZnO nanowire axial heterostructures using the site-specific deposition of TiO 2 on the tips of ZnO nanowires, followed by an annealing process. As revealed by the electron microscopy investigation, the cubic spinel Zn 2 TiO 4 single crystal heads possess two ki…
Abstract Phase morphology and rheological behavior of polyamide 6 (PA6)/acrylonitrile butadiene styrene (ABS) polymers blends was studied using scanning electron microscopy and rheometry. The results showed that the phase morphology and rheological properties depends on blend composition. We evaluated the effect of ad…
Uniform drying causes a quasi-two-dimensional cellular crack pattern in a thin layer of paste. In our previous research, we found that such cracks are created in a capillary state, and that the growth speed is determined by the rate of increase in tension in the layer, rather than by the magnitude of the tension itsel…
Abstract Though silane chemistry has been used to crosslink unfilled polyethylene for many years, such crosslinking has only been recently applied to wood plastic composites to improve properties such as creep resistance. However, the presence of wood significantly changes the silane chemistry and a greater understand…
Two series of novel symmetrical azomethines prepared by the condensation of 4,4′-(butane-1,4-diylbis(oxy))bis(butane-4,1-diyl)bis(4-aminobenzoate) (PBBA470) and 5,10,15,20,25,30,35,40,45,50,55,60-dodecaoxatetrahexacontane-1,64-diylbis(4-aminobenzoate) (PBBA 1200) with a range of aldehydes have been characterised by 1H…
We have studied the electronic and magnetic properties of the half-Heusler compounds FeCrZ and MnYZ (Y=Mn, Cr; Z=Al, Si, P, Ga, Ge, As, In, Sb, Sn) by first-principles total-energy calculations. The results show that, among the paramagnetic, ferromagnetic, and ferrimagnetic states, the ferrimagnetic state is the most…
We designed nanofibrous hydrogels as 2-D and 3-D scaffolds for anchorage-dependent cells. The IKVAV-containing peptide amphiphile molecules spontaneously self-assembled into higher-order nanofiber hydrogels under cell-containing media. Neural progenitor cells (NPCs) were incubated in peptide-based hydrogels. Effects o…
We report large-scale (10(7) atoms in an 85-nm-wide container) molecular dynamics simulations of collapse of nanoscopic (5-12 nm in diameter) voids in liquid argon. During the collapse the pressure on the liquid side decreases, and this decrease propagates into liquid at the speed of sound. Despite the nonuniform prof…
A one-dimensional system of particles is examined in which even numbered particles are bound to adjacent even particles by harmonic spring forces, while odd particles are free. Even and odd particles collide elastically. This is a momentum conserving modification of the famous "ding-a-ling" model. Molecular-dynamics s…
Abstract Poly(vinyl alcohol) (PVA)/waterborne polyurethane (WBPU) nanofiber mats were prepared using electrospinning method with aqueous solutions. Scanning electron microscopy (SEM), X‐ray diffraction (XRD), thermal gravimetric analyzer (TGA), and tensile strength testing machine (ZWICK) were used to characterize the…
Abstract Two kinds of treated fumed silica were prepared by treatment with either tetraphenylphenyltriethoxysilane (TPHTS) or both tetraphenylphenyltriethoxysilane and hexamethyldisilazane (TPHMTS), and were used as reinforcing filler for silicone rubber. The resistance to irradiation of the silicone rubber obtained w…
The tellurides Tl(10-x)La(x)Te(6) were synthesized from the elements in stoichiometric ratios at 873 K, followed by slow cooling. These materials are substitution variants of Tl(5)Te(3), crystallizing in space group I4/mcm, with lattice dimensions of a = 8.9220(4) Å, c = 13.156(1) Å, V = 1047.2(1) Å(3), for x = 1 (Z =…
We report on the nanoscale optical characterization of gold nanorods irradiated out of their plasmonic resonance. Our approach is based on the reticulation of a photopolymerizable formulation locally triggered by enhanced electromagnetic fields. The tiny local field enhancement stems from the surface polarization char…
A new series of fused polyheterocyclic aromatic compounds, 7-alkoxybezopyrano[2,3-c]pyrazol-3-one (C- n BPP), were synthesised and characterised by infrared, 1H-nuclear magnetic resonance (NMR), 13C-NMR and two-dimensional 1H-13C cosy spectra. Their phase transition behaviour was investigated by differential scanning…
Abstract Soy protein concentrate was grafted with ethylmethacrylate using ascorbic acid/potassium persulphate as a redox initiator. Different reaction parameters, such as reaction time, reaction temperature, solvent amount, initiator ratio, and pH, and monomer concentration were optimized to get maximum graft yield (1…
Abstract Thin films of Ce 0.8 Gd 0.2 O 1.9‐δ (CGO) are deposited by flame spray deposition with a deposition rate of about 30 nm min −1 . The films (deposited at 200 °C) are dense, smooth, and particle‐free and show a biphasic amorphous/nanocrystalline microstructure. Isothermal grain growth and microstrain are determ…
General equations are presented for the spatially dispersive conductivity, distributed impedance, Ohm's law relation, and transmission line model of both carbon nanotubes (CNTs) and solid material nanowires. It is shown that spatial dispersion results in an intrinsic (material-dependent) transmission-line capacitance.…
The metal-binding ability of human ubiquitin (hUb) towards a selection of biologically relevant metal ions and complexes has been probed. Different techniques have been used to obtain crystals suitable for crystallographic analysis. In the first type of experiments, crystals of hUb have been soaked in solutions contai…
We study the energy-gap opening in the electronic spectrum of graphene bilayers caused by asymmetric doping. Both substitutional impurities (boron acceptors and nitrogen donors) and adsorbed potassium donors are considered. The gap evolution with dopant concentration is compared to the situation in which the asymmetry…