Materials Literature
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Current techniques of in vitro cell cultures are able to mimic the in vivo environment only to a limited extent, as they enable cells to grow only in two dimensions. Therefore cell culture approaches should rely on scaffolds that provide support comparable to the extracellular matrix. Here we demonstrate the advantage…
Deformability of Mg-Li alloys at room temperature and heat treatment characteristics of superlight Mg-8~30mass%Li alloys containing aluminum will be reviewed. Li addition enhances the deformability of magnesium. Particularly, the deformability of magnesium increases remarkably by the addition of lithium of more than 6…
Liquid-crystalline (LC) N-heteroacenes, tetraazanaphthacene (TANC), and fluoflavin (FFV) were synthesized, and their self-assembly into columnar LC structures at room temperature was investigated. LC TANC and LC FFV functioned as an electron acceptor and electron donor, respectively. A TANC/FFV LC mixture showed ESR…
An absorption and circular dichroism spectroscopies investigation was carried out on the heteroaggregates formed in water upon the interaction of Chicago Sky Blue with four different cationic surfactants derived from ephedrine and pseudoephedrine and featuring hydrophobic tails of different length. The chirooptical fe…
Among the various corrosion protection strategies for structural steels, coating techniques provide the most cost-effective protection and have been used as the primary mode of corrosion protection. Existing coating techniques however have been used mainly for their barrier capability and therefore all have a limited…
The synthesis and the photophysical studies of a new generation of time resolved luminescent systems based on calix[4]arenes alkylated at the lower rim, capable of hosting lanthanide (III) ions such as terbium and sensitising its emission, are described. Two series of ligands were designed to provide an ideal cavity t…
Catalyst-free ZnO nanostructures were grown by pulsed-laser deposition on c-oriented sapphire. The nanostructure morphology can be controlled by introducing a nucleation layer. Depending on the doping concentration in the nucleation layer two distinct types of nanostructures are observed. On intrinsic nucleation layer…
This study considers the mechanical properties of a range of thermosetting resin systems, including systems with bioderived content, and associated natural fibre composites. The bioderived resin systems (22 and 40% biocontent) demonstrated similar tensile strength to standard resin systems, indicating their potential…
This work explores the influence of rheological properties on polymer foam development in nonpressurized systems. To understand the complex contributions of rheology on the mechanism of bubble growth during different stages of foam processing, visualization studies were conducted by using a polymer‐foaming microscopy…
ABSTRACT This paper investigates the temperature dependence of the material length scale in the conventional mechanism‐based strain gradient (CMSG) plasticity theory. The work reported here also examines the plastic strain gradient effect on the opening displacement near a sharp crack tip. The study examines the mecha…
In the last few years, we have witnessed significant progress in developing high performance shape memory polymer (SMP) nanocomposites, in particular, for shape recovery activated by indirect heating in the presence of electricity, magnetism, light, radio frequency, microwave and radiation, etc. In this paper, we crit…
Hang on to those branches! Amylopectin, the major polysaccharide of starch, is a predominantly α(1,4)-linked glucan whose properties are defined by its size and the number, distribution, and length of its α(1,6)-linked branches. The amphiphilic probe HPTS-C16 H33 binds to terminal helical branches longer than 12 gluco…
The misfit dislocations at cubic semiconductors hetero-interfaces were quantitatively investigated by high angle dark field scanning transmission electron microscopy in combination with geometric phase analysis and dislocation density tensor analysis. A detailed comparison of the extracted information with the availab…
Low-loss all-angle negative refraction is predicted in the mid-infrared region based on doped-silicon nanowire arrays. Loss-enhanced transmission and absence of resonances account for the broadband high figure of merit (FOM), which could be an order of magnitude greater than those reported previously for multilayered…
A new polymer containing α-aminophosphonate unit (PAP) was synthesized through a simple and solvent-free Kabachnik–Fields reaction, and was characterized by NMR, FTIR, and gel permeation chromatography (GPC). This polymer was used as a novel reactive, halogen-free flame retardant. The curing behavior of bisphenol A ty…
Ho 3+ / Yb 3+ ‐codoped Bi 2 Ti 2 O 7 pyrochlore thin films were prepared by a chemical solution deposition method, and their visible up‐conversion ( UC ) photoluminescence and dielectric relaxation were studied. Ho and Yb can be doped into Bi 2 Ti 2 O 7 lattice and single pyrochlore phase is maintained. Intense visibl…
A high molecular weight (27 × 10 3 gmol −1 ) poly(azo-ether-imide) has been fabricated in this study. Well-aligned poly(azo-ether-imide) fibers and poly(azo-ether-imide)/multi-walled carbon nanotube nanofibers-based nanocomposite were then produced by electrospinning via self-reinforcement. Transmission electron micro…
We report the demonstration of an optically activated shutter based upon a short-pitch chiral nematic liquid crystal (LC) device sandwiched between crossed polarizers. This LC is comprised of photo-active chiral dopants. In the trans-state, the LC appears dark between crossed polarizers due to the very short pitch. As…
Hexaphenoxycyclotriphosphazene (HPCTP) was synthesized by a nucleophilic substitution reaction between hexachlorocyclotriphosphazene and phenol. The chemical structure of HPCTP was then characterized by Fourier transform infrared spectroscopy as well as 1 H and 31 P nuclear magnetic resonance spectroscopy. The synthes…
The incorporation of drugs into the dressings make these dressings antimicrobial and help in control of infection around the wound. The wound dressing materials based on PVA/PAA, ciprofloxacin HCl, and aloe vera have been designed and developed so that the wound undergoes proper healing and scar formation is minimal.…