Materials Literature
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An approach is presented for the structure determination of membrane proteins on the basis of poorly diffracting crystals which exploits molecular replacement for heavy-atom site identification at 6-9 A maximum resolution and improvement of the heavy-atom-derived phases by multi-crystal averaging using quasi-isomorpho…
In this paper, the strong influence of alkali halide in chalcogenide glasses is reminded, leading for the first time to highly transparent glasses from the visible range up to 11μm. The behavior of crystallization has been demonstrated to be similar in sulfide and selenide glasses containing gallium as well. The st…
We present fabrication of a novel (Nd<sub>0.7</sub>Ce<sub>0.3</sub>)<sub>10.5</sub>Fe<sub>83.9</sub>B<sub>5.6</sub> magnetic powder and polydimethysiloxane bonded material that can be micropatterned into micromagnets. The magnetic powder, with an average particle size of 5μm-6μm, has been prepared from an alloy…
Abstract Because of the large energy storage and small temperature variation during the phase change process, phase change materials (PCMs) are attracting increasing attention. In this study, a novel solid–solid PCM was prepared by coordinating rare earth Eu 3+ ions to the carboxylate groups of a poly(ethylene glycol)…
We propose a method of tunneling electromagnetic (EM) waves through a channel with sub-wavelength cross section. By filling the channel with high-epsilon isotropic material and implementing two matching layers with uniaxial metamterial substrates, the guided waves can go through the narrow channel without being cut of…
ZnO-based thin films and nanostructures grown by PLD for various emerging optoelectronic applications. AZO thin films are currently displacing ITO for many TCO applications due to recent improvements in attainable AZO conductivity combined with processing, cost and toxicity advantages. Advances in the channel mobiliti…
The aim of this study was to evaluate the use of nanofibre microfiltration membranes, spun by an innovative electrospinning technique, in water filtration applications. As such, this study bridges the gap between developments in electrospinning techniques for the production of flat-sheet membranes and the application…
Small-angle X-ray scattering (SAXS) is a powerful technique with which to evaluate the size and shape of biological macromolecules in solution. Forward scattering intensity normalized relative to the particle concentration, I (0)/ c , is useful as a good measure of molecular mass. A general method for deducing the mol…
The local atomic structures around the Zr atom of pure (undoped) ZrO 2 nanopowders with different average crystallite sizes, ranging from 7 to 40 nm, have been investigated. The nanopowders were synthesized by different wet-chemical routes, but all exhibit the high-temperature tetragonal phase stabilized at room tempe…
The aggregation behavior of poly(4,4'-diphenylether-5,5'-bibenzimidazole) (OPBI) in polar aprotic (dimethyl acetamide, DMAc) and protic (formic acid, FA) solvents is studied as a function of the polymer concentration and solution temperature. The effects of solvent protic character on the aggregation behavior of OPBI…
A method for the identification of alpha-helices in electron-density maps at low resolution followed by interpretation at moderate to high resolution is presented. Rapid identification is achieved at low resolution, where alpha-helices appear as tubes of density. The positioning and direction of the alpha-helices is o…
Abstract Two monotopic tridentate ligands, namely H L AB1 and H L AB2 have been synthesized which feature an acridone chromophore fused on a benzimidazolepyridine framework. They differ from each other by their connection points between a N ‐methylacridone and a N ‐methylbenzimidazole chromophoric moieties. Both ligan…
Several high-performance polymeric electro-optic modulators have been demonstrated in the last decade. Most of them have been elaborated using specific high-performance electro-optic polymers designed for their exceptional electro-optic response and their thermal stability. In this paper we report the high performance…
Abstract The synthesis of one‐piece electronic conducting interpenetrating polymer networks is proposed as an alternative to multilayer architectures for the design of electroactive devices. The electronic conducting polymer poly(3,4‐ethylenedioxythiophene) (PEDOT) as active component was symmetrically distributed in…
We report the preparation of aminopropyl-functionalized magnesium phyllosilicate (Mg-organoclay) conjugated to fluorescein isothiocyanate (FITC) functionality (FITC-organoclay) by one-pot sol-gel synthesis. The physical characteristics of the Mg- and FITC-organoclays were examined by scanning electron microscopy (SEM)…
Two new metal antimony oxychlorides, Sb(2)ZnO(3)Cl(2) and Sb(16)Cd(8)O(25)Cl(14), have been synthesized by solid-state reactions using Sb(2)O(3) and ZnCl(2) (or CdCl(2)) as reagents. The structures of Sb(2)ZnO(3)Cl(2) and Sb(16)Cd(8)O(25)Cl(14) have been determined by single-crystal X-ray diffraction. Both of the repo…
The position and strength of the boson peak in silica glass vary considerably with temperature T. Such variations cannot be explained solely with changes in the Debye energy. New Brillouin-scattering measurements are presented which allow determining the T dependence of unrelaxed acoustic velocities. Using a velocity…
Light-scattering properties of individual gold-in-Ga(2)O(3) peapod nanowires and gold-in-Ga(2)O(3) core/shell nanowires were investigated by optical dark-field microscopy. The observed scattering peaks are suggested to result from plasmonic resonance of the gold nanopeas and nanorods in the Ga(2)O(3) nanowires. As the…
Ferromagnetic MPt (Fe, Co, Ni) nanocomposites were obtained by infiltration of aqueous and chloroform precursor solutions into ordered mesoporous SBA-15 and CMK-3. Channel-confined crystallization of the intermetallic phases was achieved under a reductive and inert atmosphere in a temperature range from 673 to 1073 K…
A white, cadmium selenide (CdSe) nanocrystal-based phosphor light-emitting diode (LED) was fabricated in this work using a commercial ultraviolet (UV) LED topped with a thin film of nanocrystals encapsulated in a polymer. A range of film thicknesses were fabricated and different wavelength LEDs were employed to analyz…