Materials Literature
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A new and general approach enabling us to amplify not only the bandgap emission of ZnO nanorods but also the defect emission of Al(2)O(3) is proposed. The light intensity of the band edge emission of ZnO nanorods can be improved by as much as 19 times after the decoration of Al(2)O(3) layers. Moreover, white light emi…
In this study, we fabricated electrospun silica nanofiber membranes and investigated their use in biomolecular sensing. The diameter, porosity and surface-to-volume ratio of nanofiber membranes were investigated under different fabrication conditions. Using this type of nanofiber membrane, enzyme-linked immunosorbent…
We have performed polarized inelastic neutron scattering experiments in the ordered phase of neptunium dioxide. The observation of magnetic scattering between 11 and 18 meV can be attributed to a transition between two states with the same expectation value of the electric quadrupole but opposite values of the magneti…
Abstract In this study, an orthogonal array design (OAD), OA 9 , was employed as a statistical experimental method for the controllable, simple and fast synthesis of silver oxalate nanorods. Ultrafine silver oxalate rods were synthesized by a precipitation method involving the addition of silver ion solution to the ox…
ErMnO 3 single crystals are studied by polarized first-order and second-order micro-Raman measurements as a function of temperature and compared to previous hexagonal RMnO 3 (R = Y, Ho, Yb) studies. In addition to the resonance effects of the 684 cm −1 mode that are correlated with Mn 3+ d–d electronic transitions, so…
Abstract Short electrospun fibers were obtained by using UV cutting method. Either polymers with double bonds with a photocross‐linker (CL) and photoinitiator (PI) or known photochemistry of coumarin ([2 + 2] cycloaddition reaction) without the addition of CL and PI is utilized for making short electrospun fibers. The…
In this report we present synthetic, crystallographic, and new electron paramagnetic resonance (EPR) spectroscopic work that shows that the synthetic route leading to the recently reported, first persistent plumbyl radical *PbEbt3 (Ebt = ethylbis(trimethylsilyl)silyl), that is, the oxidation of the related PbEbt3-anio…
Highly ordered two-dimensional (2D) mesoporous silicoboron carbonitride (SiBCN) materials were prepared by a double nanocasting approach using mesoporous SBA-15 silica as starting template. The latter was converted into its negative replica CMK-3 carbon template, which was subsequently impregnated with a boron-modifie…
A phase change memory cell with tungsten trioxide bottom heating layer/electrode is investigated. The crystalline tungsten trioxide heating layer promotes the temperature rise in the Ge(2)Sb(2)Te(5) layer which causes the reduction in the reset voltage compared to a conventional phase change memory cell. Theoretical t…
An approach to organic-inorganic interfacial structure at the atomic level is a great challenge in the studies of biomineralization. We demonstrate that atomic force microscopy (AFM) is powerful tool to discover the biomineral interface in detail. By using a model system of (100) hydroxyapatite (HAP) face and citrate,…
Pristine and functionalized silica (SiO(2)) nanoparticles were dispersed into nylon 6 and drawn into filaments through melt extrusion. The loading fraction of particles in both cases was 1.0 wt%. Fourier transform infrared (FTIR) studies revealed that reinforcement of pristine silica nanoparticles enhances the bond st…
Cytochrome P450 (CYP) enzymes are a superfamily of heme containing proteins that catalyze xenobiotic metabolism phase I reactions. Oxidation reactions are the most common CYP-catalyzed reactions for both endogenous substrates and exogenous compounds, including drugs, although CYP enzymes are capable also to catalyze r…
We study aging in a colloidal suspension consisting of micron-sized particles in a liquid. This system is made glassy by increasing the particle concentration. We observe samples composed of particles of two sizes, with a size ratio of 1:2.1 and a volume fraction ratio 1:6, using fast laser scanning confocal microscop…
Although the energetic balance of forces stabilizing proteins has been established qualitatively over the last decades, quantification of the energetic contribution of particular interactions still poses serious problems. The reasons are the strong cooperativity and the interdependence ofnoncovalent interactions. Salt…
The syntheses and characterization of a new class of grafted organo−Si(HIPE) “high internal phase emulsion” open-cell matrixes is first proposed. Second, internal palladium particles heterogeneous nucleation is briefly discussed, leading finally to the generation of the new Pd@organo−Si(HIPE) series. The matrixes synt…
Mesostructured films are an ideal material for incorporation of fluorescent dyes; controlling the doping process is, however, a critical step because the dyes will be constrained in a complex chemical environment. We have incorporated rhodamine 6G, a well-known fluorescent dye, in silica mesostructured 2d-hexagonal fi…
Increasing NH 4 + adsorption can be an effective alternative in building an available N pool in soils to optimize crop recovery and minimize losses into the environment. We hypothesized that long‐term fertilization may change NH 4 + adsorption due to changes in the chemical and mineralogical properties of a rice ( Ory…
Birefringent ring-banded spherulites with radial periodic variation of thicknesses were grown from poly(ε-caprolactone) (PCL) solutions under conditions for which the solution concentration was held constant during the whole development of the morphology. The as-grown ring-banded spherulites were investigated by optic…
The results of studies of polyelectrolyte complexes of chitosan are summarised and described systematically. Chitosan complexes with biopolyelectrolytes, with modified natural polyelectrolytes and with synthetic polyanions are considered. Medical and biotechnological applications of chitosan complexes are discussed.
We describe the design of near-field focusing plates, which are grating-like structures that can focus electromagnetic radiation to spots or lines of arbitrarily small subwavelength dimension. A general procedure is outlined for designing a near-field plate to achieve a desired focus, and its implementation at microwa…