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Structural stability and half-metallicity of the zinc-blende phase ofAl1−xCrxAs: Density-functional study

Yong-Hong Zhao、Guoping Zhao、Yong Liu 等 4 位作者2009-12-17Physical Review B

An accurate full-potential linear augmented plane waves method has been used to investigate the structural stability, half-metallic ferromagnetism of the zinc-blende phase of the ferromagnetic semiconductor alloy ${\text{Al}}_{1\ensuremath{-}x}{\text{Cr}}_{x}\text{As}$. The relative stability of the zinc-blende phase…

ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsHeusler alloys: electronic and magnetic properties

Mechanical and thermal properties of EVA blended with biodegradable ethyl cellulose

B. G. Girija、R. R. N. Sailaja、Sharmistha Biswas 等 4 位作者2009-12-17Journal of Applied Polymer Science

Abstract In this study, biodegradable blend of Poly (Ethylene‐ co ‐Vinyl Acetate) (EVA) and Ethyl Cellulose (EC) were prepared. Ethylene vinyl alcohol (EVOH) copolymer was used as an interfacial compatibilizer to enhance adhesion between EVA and EC. The melt blended compatibilized biocomposites were examined for mecha…

Polymer crystallization and propertiesNatural Fiber Reinforced Compositesbiodegradable polymer synthesis and properties

Effective method for dispersing SiO2 nanoparticles into polyethylene

Maija Pöllänen、Uwe Pelz、Mika Suvanto 等 4 位作者2009-12-17Journal of Applied Polymer Science

Abstract An effective solution mixing method starting from a synthesis solution of SiO 2 nanoparticles was developed for dispersing nanoparticles into high‐density polyethylene (HDPE). Spherical SiO 2 nanoparticles with narrow size distribution (50–100 nm) were prepared by Stöber method, and solvents of the synthesis…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation

Observation of ultrafast photoinduced closing and recovery of the spin-density-wave gap in(TMTSF)2PF6

Shinichi Watanabe、Ryusuke Kondo、S. Kagoshima 等 4 位作者2009-12-17Physical Review B

Photoexcited dynamics of a spin-density-wave (SDW) state in an organic linear-chain compound bis-(tetramethyl-tetraselenafulvalene)hexafluorophosphate, ${(\text{TMTSF})}_{2}{\text{PF}}_{6}$, is investigated by optical pump and terahertz probe experiments. After the ultrashort laser-pulse excitation, a sudden closing f…

Physics of Superconductivity and MagnetismMagnetism in coordination complexesOrganic and Molecular Conductors Research

Effect of poly(acrylic acid) end‐group functionality on inhibition of calcium oxalate crystal growth

Andrew D. Wallace、Ali A. Al-Hamzah、Christopher P. East 等 5 位作者2009-12-17Journal of Applied Polymer Science

Abstract A number of series of poly(acrylic acids) (PAA) of differing end‐groups and molecular weights prepared using atom transfer radical polymerization were used as inhibitors for the crystallization of calcium oxalate at 23 and 80°C. As measured by turbidimetry and conductivity and as expected from previous report…

Concrete and Cement Materials ResearchCalcium Carbonate Crystallization and InhibitionLayered Double Hydroxides Synthesis and Applications

Reactivity of organosilicon precursors in remote hydrogen microwave plasma chemical vapor deposition of silicon carbide and silicon carbonitride thin‐film coatings

A. M. Wróbel、A. Walkiewicz‐Pietrzykowska、Iwona Blaszczyk‐Lezak2009-12-17Applied Organometallic Chemistry

Abstract A number of organosilicon precursors for silicon carbide and silicon carbonitride thin‐film coatings, such as silanes, carbosilanes, aminosilanes, and disilazane, respectively, were characterized in terms of their reactivity in a remote microwave plasma chemical vapor deposition process, which was induced usi…

Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchCopper Interconnects and Reliability

Carbon Nanotubes Fed on “Carbs”: Coating of Single‐Walled Carbon Nanotubes by Dextran Sulfate

Nalinikanth Kotagiri、Jin‐Woo Kim2009-12-17Macromolecular Bioscience

A facile and easily reproducible technique for assembling biohybrid nanoparticles is a core feature that is highly desired for biomedical applications, considering the nature and limited lifespan of the biopolymers used. Here we show a simple and effective method to enfold single-walled carbon nanotubes (SWNTs) using…

Carbon Nanotubes in CompositesGraphene research and applicationsConducting polymers and applications

Synthetic, Cyclic Voltammetric, Structural, EPR, and UV−Vis Spectroscopic Studies of Thienyl-Containing meso-A2B-cor(CrV═O) Systems: Consideration of Three Interrelated Molecular Detection Modalities

O.A. Egorova、Olga G. Tsay、Snehadrinarayan Khatua 等 12 位作者2009-12-17Inorganic Chemistry

We report eight new A(2)B-type (M(n+)) corrolate compounds (two structural studies) that include the oxo[5,15-bis(pentafluorophenyl)-10-R-corrolatochromium(V)] [R = 2-/3-thienyl (1a/2a), 3-thianaphthyl (3a)] species. The first examples of meso-A(2) (thienyl)- and Cr-A(2)B-corrole types are represented herein. Characte…

Metal complexes synthesis and propertiesPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

Accelerated crystallization of poly(L‐lactide) by physical aging

Hideto Tsuji、Mariko Sawada2009-12-17Journal of Applied Polymer Science

Abstract The low‐temperature physical aging of amorphous poly( L ‐lactide) (PLLA) at 25–50°C below glass transition temperature ( T g ) was carried out for 90 days. The physical aging significantly increased the T g and glass transition enthalpy, but did not cause crystallization, regardless of aging temperature. The…

Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesAdditive Manufacturing and 3D Printing Technologies

Effect of nanoclay on the morphology and properties of poly(methyl methacrylate)/high‐density polyethylene blends

Sumana Mallick、Anup K. Dhibar、Bhanu Bhusan Khatua2009-12-17Journal of Applied Polymer Science

Abstract The effect of nanoclay on the morphology and properties of poly(methyl methacrylate) (PMMA)/high‐density polyethylene (HDPE) blends was studied. A scanning electron microscopy study of the PMMA/HDPE (70/30 w/w) blends with nanoclay indicated a reduction in the average domain sizes of the dispersed HDPE phase…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Nanocomposite Synthesis and Irradiation

Selective Nanofiber Deposition Using a Microfluidic Confinement Approach

Haifeng Yang、Liang Dong2009-12-17Langmuir

The ability to create structurally complex, accurate micropatterns in biocompatible and biodegradable nanofiber mats is important in maximally mimicking the natural extracellular matrix (ECM) for cell biology and tissue engineering. We present a simple, versatile method for the selective deposition of nanofibers with…

Surface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting MaterialsElectrospun Nanofibers in Biomedical Applications

Biocatalytic Approach for the Synthesis of Glycerol‐Based Macroamphiphiles and their Self‐Assembly to Micellar Nanotransporters

Shilpi Gupta、Mukesh K. Pandey、Kalle Levón 等 7 位作者2009-12-17Macromolecular Chemistry and Physics

Abstract Glycerol is one of the most versatile and valuable chemical substances and is utilized in a variety of commercial products with no known adverse pharmacological or environmental effects. Moreover, it exhibits good chemical stability and inertness under biological conditions. We have designed and developed Can…

Enzyme Catalysis and ImmobilizationSupramolecular Chemistry and Complexesbiodegradable polymer synthesis and properties

An electron diffraction and Monte Carlo simulation study of an incommensurate antiferroelectric state in the relaxor ferroelectric Pb2ScTaO6

K. Z. Baba‐Kishi、Marek Paściak2009-12-17Journal of Applied Crystallography

Incommensurate satellite reflections modulating along the 〈110〉* directions have been observed in the electron diffraction patterns of single crystals of the relaxor ferroelectric Pb 2 ScTaO 6 (PST) recorded via transmission electron microscopy. The satellites occur characteristically within a specific temperature ran…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsPhotorefractive and Nonlinear Optics

Significant Effect of Bromo Substituents on Nonlinear Optical Properties of Polymer and Chromophores

Chao-Zhi Zhang、Chuang-Yu Wang、Chan Im 等 5 位作者2009-12-17The Journal of Physical Chemistry B

Four chromophores containing bromo substituents, a ployimide with bromo-containing chromophores, four reference functional polyimides, and fourteen reference chromophores were synthesized for studying effect of bromo substituents on nonlinear optical (NLO) properties of materials and chromophores. The results of hyper…

Nonlinear Optical Materials ResearchNonlinear Optical Materials StudiesChemical synthesis and pharmacological studies

PuraMatrix Encapsulation of Cancer Cells

Adnan O. Abu‐Yousif、Imran Rizvi、Conor L. Evans 等 5 位作者2009-12-17Journal of Visualized Experiments

Increasing evidence suggests that culturing cancer cells in three dimensions more accurately recapitulates the complexity of tumor biology. Many of these models utilize reconstituted basement membrane derived from animals which contain a variable amount of growth factors and cytokines that can influence the growth of…

Advanced biosensing and bioanalysis techniquesRNA Interference and Gene DeliverySupramolecular Self-Assembly in Materials

Structural Changes and Spectroscopic Properties of Ce3+-Ion-Doped Sodium Yttrium Fluoride Nanocrystals: Influences of Sonication and Temperature

Pushpal Ghosh、Arik Kar、Amitava Patra2009-12-17The Journal of Physical Chemistry C

The formation and decomposition of a layered structure of ammonium fluorolanthate during the preparation of Ce 3+ -doped sodium yttrium fluoride nanomaterials are investigated by XRD, TGA, TEM, FTIR, and photoluminescence spectroscopy. The influences of sonication and temperature of heating on the structural changes,…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsOptical properties and cooling technologies in crystalline materials

Effects of surface properties and bioactivation of biomaterials on endothelial cells

Patrick Vermette2009-12-17Frontiers in Bioscience-Scholar

Interactions between vascular endothelial cells (EC) and materials are central to biomedical applications such as vascular graft endothelialization or vascularization of an engineered tissue substitute. To improve implant success, biomaterial surfaces are designed to modulate EC adhesion and responses. In vivo, EC lin…

Electrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction Studies

Combinatorial synthesis of a triphenylmethine library and their application in the development of Surface Enhanced Raman Scattering (SERS) probes

Sung Ju Cho、Young‐Hoon Ahn、Kaustabh Kumar Maiti 等 8 位作者2009-12-17Chemical Communications

The first synthesis of a triphenylmethine (TM) library of compounds and screening of their Surface Enhanced Raman Scattering (SERS) capability was carried out to identify novel Raman reporters with high sensitivity. We identified three novel SERS reporters (B2, B7, and C7) with higher signal intensity than that of com…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesBiosensors and Analytical Detection

Assembly of Zwitterionic Phospholipid/Conjugated Polyelectrolyte Complexes: Structure and Photophysical Properties

An Thien Ngo、Gonzalo Cosa2009-12-17Langmuir

We report on the formation of complexes between zwitterionic phospholipid vesicles and an anionic fluorescent conjugated polyelectrolyte and the effect of mono- and divalent cations on the photophysical properties of these complexes. Our goal is to gain an understanding of the interplay of morphology and exciton trans…

Organic Electronics and PhotovoltaicsConducting polymers and applicationsLuminescence and Fluorescent Materials

Control of gyroid forming block copolymer templates: effects of an electric field and surface topography

Edward J. W. Crossland、Sabine Ludwigs、Marc A. Hillmyer 等 4 位作者2009-12-17Soft Matter

The control over 10 nm scale porosity derived from self-assembly of copolymers is an extremely promising method for the synthesis of organic–inorganic hybrid materials applied, for example, in solar cells. Here, we report the thin film behaviour of a poly(4-fluorostyrene)-b-poly(D,L-lactide) PFS-b-PLA block copolymer…

Advanced Polymer Synthesis and CharacterizationPolymer Surface Interaction StudiesBlock Copolymer Self-Assembly