Haifeng Yang、Xiaojing Sun、Junwu Zhu 等 6 位作者2007-05-16The Journal of Physical Chemistry C
At a silver surface, surface-enhanced Raman scattering (SERS) technique along with the self-assembled monolayers (SAMs) method was performed to observe the adsorption behavior of AMT as a protective reagent for metals from corrosion. For 20 h of self-assembling, the time-dependent SERS spectra show that a stable AMT m…
Gold and Silver Nanoparticles Synthesis and ApplicationsMolecular Junctions and NanostructuresElectrochemical Analysis and Applications
Daisuke Kawaguchi、Keiji Tanaka、Naoya Torikai 等 5 位作者2007-05-16Langmuir
The effect of chain-end chemistry on surface and interfacial segregation in symmetric blends of polystyrene (hPS)/deuterated polystyrene (dPS) has been investigated by X-ray photoelectron and secondary ion mass spectroscopy in conjunction with neutron reflectivity measurements. Alpha,omega-fluoroalkyl- and alpha,omega…
Polymer crystallization and propertiesMaterial Dynamics and PropertiesMaterial Properties and Processing
Andreas Rüegg、S. Pilgram、Manfred Sigrist2007-05-16Physical Review B
We present aspects of strong electron correlation in a model of a $BI∕M∕BI$ heterostructure where $BI$ is a band insulator and $M$ can be tuned from a metal to a Mott insulator by varying the on-site repulsion. An effective one-dimensional Schr\"odinger equation for the low-energy part is derived in the framework of t…
Quantum and electron transport phenomenaMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
Junqi Li、Fa Luo、Dongmei Zhu 等 4 位作者2007-05-16Journal of the American Ceramic Society
The influence of phase formation on the dielectric properties of silicon nitride (Si 3 N 4 ) ceramics, which were produced by pressureless sintering with additives in MgO–Al 2 O 3 –SiO 2 system, was investigated. It seems that the difference in the dielectric properties of Si 3 N 4 ceramics sintered at different tempe…
Advanced ceramic materials synthesisSemiconductor materials and devicesMXene and MAX Phase Materials
Jason Vielma、Paul Leung2007-05-16The Journal of Chemical Physics
A phenomenological model is implemented to study the decay rates of fluorescing molecules in the vicinity of a metallic nanoparticle, wherein the nonlocal optical response of the particle is accounted for via the hydrodynamic model for the description of the free electrons in the metal. These nonlocal effects are exam…
Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchSpectroscopy and Quantum Chemical Studies
Kenji Kono、Takuma MIYOSHI、Yasuhiro Haba 等 6 位作者2007-05-16Journal of the American Chemical Society
We examined the effect of binding of rose bengal (RB) to alkylamide-terminated PAMAM G5 dendrimers on their temperature-sensitive properties. The cloud point of aqueous solutions of the isobutyramide-terminated dendrimer decreased with increasing amount of RB molecules bound to the dendrimer. The propylamide-terminate…
Advanced Polymer Synthesis and CharacterizationFuel Cells and Related MaterialsDendrimers and Hyperbranched Polymers
Ray A. Nagatani、Ana Gonzalez、Brian K. Shoichet 等 5 位作者2007-05-16Biochemistry
Enzyme catalysis reflects a dynamic interplay between charged and polar active site residues that facilitate function, stabilize transition states, and maintain overall protein stability. Previous studies show that substituting neutral for charged residues in the active site often significantly stabilizes a protein, s…
Protein Structure and DynamicsEnzyme Structure and FunctionBiochemical and Molecular Research
Frédéric Chivrac、Éric Pollet、Luc Avérous2007-05-16Journal of Polymer Science Part B Polymer Physics
Abstract The study of the nonisothermal crystallization behavior of layered silicates micro‐ and nano‐biocomposites based on poly(butylene adipate‐ co ‐terephthalate) (PBAT), a biodegradable copolyester, has been carried out with different theoretical models. They were applied and developed with the aim to describe an…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
M. A. Moharram、O.M. Mahmoud2007-05-16Journal of Applied Polymer Science
Abstract X‐ray diffraction (XRD) techniques were used in the study of the effect of microwave (MW) heating on the structural properties of cotton celluloses I and II and on the mercerization mechanism of cotton fibers. Samples of celluloses I and II were MW heated at 900 W for different times ranging from 10 to 40 min…
Advanced Cellulose Research StudiesLignin and Wood ChemistryDyeing and Modifying Textile Fibers
Suchart Siengchin、J. Karger‐Kocsis、Ralf Thomann2007-05-16Journal of Applied Polymer Science
Abstract Alumina fillers were incorporated in polystyrene (PS) in 4.5 wt % by melt blending with and without latex precompounding. Latex precompounding was used for the latex‐mediated predispersion of the alumina particles. The related masterbatch was produced by mixing PS latex with water dispersible boehmite alumina…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Julia D. Burman、Clare E. M. Stevenson、R. Gary Sawers 等 4 位作者2007-05-16BMC Structural Biology
BACKGROUND: The YjgF/YER057c/UK114 family of proteins is widespread in nature, but has as yet no clearly defined biological role. Members of the family exist as homotrimers and are characterised by intersubunit clefts that are delineated by well-conserved residues; these sites are likely to be of functional significan…
Protein Structure and DynamicsEnzyme Structure and FunctionPorphyrin Metabolism and Disorders
Yukihiro Nomura、Akihiro Sato、Shinichi Sato 等 5 位作者2007-05-16Journal of Polymer Science Part A Polymer Chemistry
Abstract Novel silane endcappers and novel polyurethanes end‐capped with trimethoxysilane (silylated polyurethanes) were developed as water‐curable materials in which the curing reaction occurred under humid conditions in the presence of dioctyltin diversatate as a curing catalyst. A variety of amine‐terminated trimet…
Advanced Polymer Synthesis and CharacterizationPolymer composites and self-healingPhotopolymerization techniques and applications
Liqiong Liao、Chao Zhang、Shaoqin Gong2007-05-16Macromolecular Rapid Communications
Abstract PCL/clay nanocomposites were prepared by microwave‐assisted in situ ROP of ε ‐caprolactone in the presence of either unmodified clay (Cloisite® Na + ) or clay modified by quaternary ammonium cations containing hydroxyl groups (Cloisite 30B). This PCL showed significantly improved monomer conversion and molecu…
Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesSilicone and Siloxane Chemistry
Zeming He、Christian Stiewe、D. Platzek 等 8 位作者2007-05-16Nanotechnology
Nano ZrO2/CoSb3 composites with different ZrO2 contents were prepared using hot pressing. The phase purity, the microstructure and the temperature-dependent transport parameters of the composites were investigated. The dimensionless figure of merit (ZT) of 0.18 of the non-dispersed CoSb3 preponderates the maximal valu…
Advanced Thermoelectric Materials and DevicesThermal properties of materialsThermal Radiation and Cooling Technologies
P. P. Rajeev、Marina Gertsvolf、Cyril Hnatovsky 等 8 位作者2007-05-16Journal of Physics B Atomic Molecular and Optical Physics
Intense ultrashort light pulses interacting inside dielectrics can create nanoplasmas due to localized inhomogeneous nonlinear ionization. These nanoplasmas are bound inside the dielectric and are transient as their density changes during the light pulse—from underdense to quasi-metallic plasma densities. Interaction…
Gold and Silver Nanoparticles Synthesis and ApplicationsSilicon Nanostructures and PhotoluminescenceIon-surface interactions and analysis
Rudi Berera、Ivo H. M. van Stokkum、Gerdenis Kodis 等 13 位作者2007-05-16The Journal of Physical Chemistry B
We present results from transient absorption spectroscopy on a series of artificial light-harvesting dyads made up of a zinc phthalocyanine (Pc) covalently linked to carotenoids with 9, 10, or 11 conjugated carbon-carbon double bonds, referred to as dyads 1, 2, and 3, respectively. We assessed the energy transfer and…
Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryMolecular Junctions and Nanostructures
Gregory M. Odegard2007-05-16ChemInform
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Carbon Nanotubes in CompositesGraphene research and applicationsBoron and Carbon Nanomaterials Research
Baozhen Wang、Jun‐ichi Anzai2007-05-16Langmuir
Redox reactions of ferricyanide ions, [Fe(CN)6]3-, in polysaccharide thin films that were prepared by layer-by-layer (LbL) deposition on the surface of a gold electrode were studied electrochemically by cyclic voltammetry. LbL films composed of alginic acid (AGA) and carboxymethylcellulose (CMC) were successfully prep…
Electrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction StudiesAnalytical Chemistry and Sensors
Tirtha Chatterjee、Ramanan Krishnamoorti2007-05-16Physical Review E
Dispersions of single walled carbon nanotubes (SWNTs), with an effective aspect ratio of approximately 650 , in poly(ethylene oxide) (PEO) form fractal superstructures above their geometrical percolation and display rheological properties that follow time-temperature-composition-strain superpositioning. The concentrat…
Carbon Nanotubes in CompositesPolymer Nanocomposites and PropertiesForce Microscopy Techniques and Applications
Prabhakaran Kannan、Stephen J. Eichhorn、Robert J. Young2007-05-16Nanotechnology
Electrospinning has been used to prepare poly(vinyl alcohol) (PVA) nanofibres, with diameters ranging from 1 μm down to 20 nm, that contain dispersions of isolated, well-aligned, single-wall carbon nanotubes (SWNTs). The nanofibres were characterized by electron microscopy and Raman spectroscopy. Single Raman radial b…
Carbon Nanotubes in CompositesConducting polymers and applicationsElectrospun Nanofibers in Biomedical Applications