Materials Literature
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This article experimentally investigates various physical properties of Kevlar and Nomex plied yarns. The tensile properties of a yarn decide the performance of post spinning operations – warping, weaving and knitting – hence its accurate technical evaluation carries much importance in industrial applications. For thi…
The crystal structure of the on-state of PDM1-4, a single-mutation variant of the photochromic fluorescent protein Dronpa, is reported at 1.95 Å resolution. PDM1-4 is a Dronpa variant that possesses a slower off-switching rate than Dronpa and thus can effectively increase the image resolution in subdiffraction optical…
Abstract Titanium (Ti) co-sputtered Ni50.4Mn34.7Sn14.9 films deposited by magnetron sputtering onto Si(1 0 0) substrates at 823 K were investigated. X-ray diffraction profiles revealed the formation of highly (2 2 0)-oriented Ni–Mn–Sn–Ti austenite phase with significant decrease in grain size with increasing Ti power.…
An innovative type of hollow silicate nanoparticle with a micro/mesoporous shell wall (NSHPMS) was synthesized at room temperature via an eco-friendly double template approach, followed by simple acid reflux. TEM observations of NSHPMSs showed hollow interior nanoparticles (<100 nm) with a wormhole-like shell structur…
Abstract The potential of nanoclay organic modifiers to induce plasticizing effects in resin and coatings systems was studied. In previous work, it was found that while low amounts of incorporation of organomodified clays significantly improved the physical and mechanical properties of a ultraviolet (UV)‐curable nanoc…
Abstract In this work we explore, by first‐principles density functional theory (DFT) calculations, the possibility of inducing electron–phonon mediated superconductivity in a graphene sheet by doping its surface with alkaline metal adatoms. We demonstrate that, contrary to what could be naively believed, simple exfol…
Among double perovskites, the interpretation of the magnetic, thermal and transport properties of Sr(2)YRuO(6) remains a challenge. Characterization using different techniques reveals a variety of features that are not understood, described as anomalous, and yields contradictory values for several relevant parameters.…
The influence of the ion implantation process on the charge state of dilute (57)Fe impurities implanted as radioactive (57)Mn in ZnO is investigated by (57)Fe emission Mössbauer spectroscopy. One sample is additionally implanted with stable (23)Na impurities. Both Fe(2+) and Fe(3+) charge states are observed, and the…
The electronic structure of the newly discovered superconductor KNi(2)Se(2) is studied by first-principles calculations. Our results show that its ground state is a quasi-two-dimensional metal and the Fermi surface is contributed by the Ni 3d and Se 4p states. These states determine the significant physical properties…
SseI is secreted into host cells by Salmonella and contributes to the establishment of systemic infections. The crystal structure of the C-terminal domain of SseI has been solved to 1.70 Å resolution, revealing it to be a member of the cysteine protease superfamily with a catalytic triad consisting of Cys178, His216 a…
Au-catalyzed CdTe nanowires have been grown by close-space sublimation on Mo foils via the vapor-liquid-solid technique. Nanowire length (up to 25 μm) increased as a function of growth temperature and time. Nanowire average radius only started to increase after 20 min of growth. A model has been developed to quantitat…
Abstract Three surfactant‐encapsulated polyoxometalate (SEP) complexes were synthesized by grafting T‐shaped quaternary ammonium units onto the surface of K5BW12O40, K6SiW11O39Co, and Na10[Mn4(H2O)2(VW9O34)2]·34H2O. All the complexes possess shell–core structures, in which the peripheral mesogenic units adopt a latera…
Abstract Argan oil is well known for its nutraceutical properties. Its specific fatty acid composition and antioxidant content contribute to the stability of the oil and to its dietetic and culinary values. There is an increasing interest to use argan oil in cosmetics, pharmaceutics, and food products. However, the fo…
The magnetic moment induced on Rh atoms, forming 1.6 nm average diameter clusters, embedded in an Al(2)O(3) matrix, has been determined using x-ray magnetic circular dichroism measurements. The magnetic moment varies linearly with the applied magnetic field. At 2.3 K and under 17 T, the spin magnetic moment amounts to…
Magnesium has attracted some attention in orthopedics due to its biodegradability and mechanical properties. Since magnesium is an essential natural mineral for bone growth, it can be expected that as a biomaterial, it would support bone formation. However, upon degradation in the body, magnesium releases OH(-) which…
Eco-friendly “green” composites made from flax fibers and biodegradable corn starch-based matrix were successfully prepared by hot pressing. Thermoplastic starch (TPS) was obtained by blending native corn starch with glycerin and water. The plasticized starch was emulsified before being added to the previously NaOH-tr…
We investigated the isomerization of the simplest member of a family of photochromic oxazines with the aid of density functional theory, using three different functionals. Specifically, we simulated the thermal interconversion of the two enantiomers, associated with this compound, and established that the opening of t…
The electrochemical properties of esters of p-hydroxybenzoic acid, called parabens, were investigated on a carbon fiber microelectrode and on a glassy carbon macroelectrode in glacial acetic acid containing 20 % acetonitrile (v/v) and sodium acetate as a supporting electrolyte. The anodic oxidation of parabens in this…
We have synthesized a partially nitridated Ca 13.7 Eu 0.3 Mg 2 Si 8 O 32 ( CMSN : Eu 2+ ) using Si 3 N 4 with a conventional solid‐state reaction and successfully determined the structural parameters by a combined Rietveld refinement method. The partial nitridation of Ca 13.7 Eu 0.3 Mg 2 Si 8 O 32 ( CMS : Eu 2+ ) led…
Abstract A novel flame retardant (SDPS) containing POSi bands was synthesized by a condensation polymerization of diphenylhydroxysilane and spirocyclic pentaerythritol di(phosphate monochloride). The structure of SDPS was confirmed by Fourier transform infrared spectroscopy (FTIR) and 1H nuclear magnetic resonance (…