Materials Literature
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We report a highly flexible light-emitting device in which inorganic nanowires are the optically active components. The single-crystalline ZnO nanowires are grown at 80 degrees C on flexible polymer-based indium-tin-oxide-coated substrates and subsequently encapsulated in a minimal-thickness, void-filling polystyrene…
The self-ordering of nanoporous anodic aluminum oxide (AAO) in the course of the hard anodization (HA) of aluminum in sulfuric acid (H2SO4) solutions at anodization voltages ranging from 27 to 80 V was investigated. Direct H2SO4-HA yielded AAOs with hexagonal pore arrays having interpore distances D(int) ranging from…
The objective of the present work is to investigate, from the open literature, the recent developments in the rheology of silica and organoclay nanocomposites. In particular, this paper focuses on general trends of the linear viscoelastic behaviour of such nanocomposites. Hence, the variations of the equilibrium shear…
Tb 0.1 Ho 0.9 − x Pr x Fe 2 and Tb0.1Ho0.9−xPrx(Fe0.9B0.1)2 (0⩽x⩽0.4) alloys were prepared by arc melting and subsequent annealing. It was found that the addition of boron is helpful for the formation of MgCu2-type Laves phase. The spin reorientation temperature of Tb0.1Ho0.9−xPrx(Fe0.9B0.1)2 compounds decreases and t…
Organo‐mineral aggregates in various fractions including clay, silt, fine sand, and coarse sand were isolated from a Chernozem in northeast China by ultrasonic dispersion in water followed by sedimentation. The physicochemical properties of different fractions were determined and the organo‐mineral aggregates were cha…
We present the results of studies on the temperature dependence of the electrogyration (EG) effect, Faraday rotation and natural optical activity in Pb 5 Ge 3 O 11 and Pb 5 Ge 3 O 11 :Cr crystals at the phase transition. A high EG coefficient is found for Pb 5 Ge 3 O 11 :Cr crystals. We demonstrate how the Curie–Weiss…
We report on protein immobilization in a microcapsule and its adsorption performance with respect to precious-metal ions. Proteins including lysozyme, bovine serum albumin, chicken egg albumin, and soybean protein were immobilized by a microencapsulation method, and their adsorption properties with respect to ions of…
Phenylacetaldehyde dehydrogenase (PAD) and lactaldehyde dehydrogenase (ALD) share some structural and kinetic properties. One difference is that PAD can use NAD+ and NADP+, whereas ALD only uses NAD+. An acidic residue has been involved in the exclusion of NADP+ from the active site in pyridine nucleotide-dependent de…
Coulomb Blockade Oscillations in Narrow Corrugated Graphite Ribbons, Miyazaki, Hisao, Odaka, Shunsuke, Sato, Takashi, Tanaka, Sho, Goto, Hidenori, Kanda, Akinobu, Tsukagoshi, Kazuhito, Ootuka, Youiti, Aoyagi, Yoshinobu
Abstract New polyazomethines have been synthesized by the reaction between 2,5‐dihydroxy‐1,4‐benzoquinone and siloxane diamines differing by the siloxane sequence length. A dimer has also been prepared as a model compound. The products were characterized by spectral (FTIR and 1 H‐NMR) and elemental analyses, GPC, visc…
Twelve new ethoxylated mono alkyl bisphenol surfactants were prepared. These surfactants have a general formula as E(X) B(Y) M(R) wherein, the E(X) is the degree of ethylene oxide units, the B(Y) is the bisphenol which based on acetophenone (BAC), cyclohexanone (BCH), or acetone (BA) and R is the alkyl chain of fatty…
The fracture of tetrahedral amorphous carbon at the nanoscale was investigated with molecular dynamics simulations using the environment-dependent interatomic potential. It was found that the fracture strength of amorphous carbon nanospecimens is insensitive to initial cracks with diameters smaller than about $40\phan…
Abstract The interest of gold nanoparticles in the field of nanocatalysis and nanosensors is growing. For example, carbon nanotubes covered with gold nanoclusters could present interesting properties in catalysis or/and in devices based on catalytic reaction such as chemical gas sensor. Unfortunately, the characteriza…
The metal-insulator transition in ${\mathrm{V}}_{2}{\mathrm{O}}_{3}$ thin films has been studied by resonant inelastic x-ray scattering (RIXS) at the V ${L}_{3}$ edge. Features belonging to $d\text{\ensuremath{-}}d$ excitations, charge transfer between $\mathrm{O}\phantom{\rule{0.2em}{0ex}}2p$ and $\mathrm{V}\phantom{…
Abstract A novel, cost-effective, easy and single-step process for the synthesis of large quantities of magnetic metal-encapsulated multi-walled carbon nanobeads (MWNB) and multi-walled carbon nanotubes (MWNT) using catalytic chemical vapour deposition of methane over Mischmetal-based AB 3 alloy hydride catalyst is pr…
We investigated the magnetotransport in high quality ferromagnetic $(\mathrm{Ga},\mathrm{Mn})\mathrm{As}$ films and wires. At low temperature the conductivity decreases with decreasing temperature without saturation down to $20\phantom{\rule{0.3em}{0ex}}\mathrm{mK}$. Here we show that the conductivity decrease follows…
We describe the computational design of electroceramic materials with optimal permittivity for application as electronic components. Given the difficulty of large-scale manufacture and characterization of these materials, including the theoretical prediction of their materials properties by conventional means, our app…
Dispersibility of colloidal barium titanate suspensions is reviewed with an emphasis on the use of various polyelectrolytes as dispersants. The fundamentals of colloidal stability are discussed followed by the colloidal properties of barium titanate powder. Dispersion behavior of BaTiO3 in both nonaqueous and aqueous…
The new N-confused porphyrin (NCP) derivatives, meso-unsubstituted beta-alkyl-3-oxo N-confused porphyrin (3-oxo-NCP) and related macrocycles, were synthesized from appropriate pyrrolic precursors by a [3+1]-type condensation reaction. 3-Oxo-NCP forms a self-assembled dimer in dichloromethane that is stabilized by comp…
Abstract Ceria nanocrystals with a cube shape were synthesized from the hydrolytic sol–gel reaction of cerium salt in the presence of oleylamine. The overall synthetic process is very simple and readily applicable to the large‐scale synthesis of tens of grams of product in a single reaction in air. These ceria nanocry…