Francisco J. Gordillo‐Vázquez、J. M. Albella2003-11-14Plasma Sources Science and Technology
We have used a kinetic model to investigate the influence of changing the pressure (0.1–0.8 Torr) and power (100–300 W) on the non-equilibrium plasma chemistry of RF (13.56 MHz) produced C 2 H 2 (1%)/H 2 /Ar plasmas of interest for the synthesis of nanodiamond thin films. We found that the concentrations of the specie…
High-pressure geophysics and materialsDiamond and Carbon-based Materials ResearchDust and Plasma Wave Phenomena
Fernando A. Reboredo、Eric Schwegler、Giulia Galli2003-11-14Journal of the American Chemical Society
Using ab initio calculations, we have studied the influence of optical activation on functionalization reactions of silicon quantum dots with unsaturated hydrocarbons. We find that the energy barrier for the replacement of silicon-hydrogen with silicon-carbon bonds is dramatically reduced if the silicon dot is optical…
Quantum Dots Synthesis And PropertiesSemiconductor materials and devicesSilicon Nanostructures and Photoluminescence
Pedro Lamosa、David L. Turner、Rita Ventura 等 5 位作者2003-11-14European Journal of Biochemistry
Heteronuclear NMR relaxation measurements and hydrogen exchange data have been used to characterize protein dynamics in the presence or absence of stabilizing solutes from hyperthermophiles. Rubredoxin from Desulfovibrio gigas was selected as a model protein and the effect of diglycerol phosphate on its dynamic behavi…
Protein Structure and DynamicsMicrobial Metabolic Engineering and BioproductionEnzyme Structure and Function
Qiangxian Wu、Hiroshi Sakabe、Seiichiro Isobe2003-11-14Industrial & Engineering Chemistry Research
Corn gluten meal (CGM)/wood fiber composites, plasticized by glycerol, water and ethanol, were extruded into pellets, and then the pellets were compression-molded into sheets for evaluation of water resistance, thermal stability and morphology. Pellets were also injection-molded to prepare plant pots for developing lo…
Natural Fiber Reinforced Compositesbiodegradable polymer synthesis and propertiesPolymer Foaming and Composites
Hind H. Goreish、Andrew L. Lewis、Susanna F Rose 等 4 位作者2003-11-14Journal of Biomedical Materials Research Part A
Several experiments were performed to compare the in vitro adhesion of human macrophage and granulocyte inflammatory cells to polyethylene terephthalate substrate and the same coated with a phosphorylcholine (PC)-based polymer. The inclusion of various types of serum at different stages in the assay indicated that pro…
Polymer Surface Interaction StudiesHemostasis and retained surgical itemsSurgical Sutures and Adhesives
Serge N. Timasheff2003-11-14Humana Press eBooks
The stability of the native structure of globular proteins is known to be affected strongly by a variety of substances that act at high concentration (usually ≥1 M ). We will refer to these as co-solvents, whether they are liquids or solids. Some of these substances are known to stabilize protein structure, others to…
Mass Spectrometry Techniques and ApplicationsProtein purification and stabilityEnzyme Structure and Function
Xiangyang Li、Albert F. Yee2003-11-14Macromolecules
High- T g yet mechanically robust polymers are desirable but difficult to realize. To explore whether the insertion of a motionally active molecular entity in the backbone could produce polymers with both high T g and yet are not brittle, three series of high- T g glassy polycarbonates/polyesters/poly(ester carbonate)…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesSilicone and Siloxane Chemistry
Hanns‐Georg Kilian、Sergei Bronnikov、T. E. Sukhanova2003-11-14The Journal of Physical Chemistry B
The transformation of the micro-domain structure of polyimide films during thermally induced chemical conversion from the polyamic acid prepared from 3,3‘,4,4‘-diphenyl tetracarboxylic dianhydride and p -phenylene diamine, also in the presence of triphenyl phosphate, is studied with a transmission electron microscope.…
Liquid Crystal Research AdvancementsPolymer crystallization and propertiesAdvanced Physical and Chemical Molecular Interactions
Marco Giacinti Baschetti、Enrico Piccinini、Timothy A. Barbari 等 4 位作者2003-11-14Macromolecules
The dilation of polycarbonate (PC), poly(vinyl acetate) (PVAc), and poly(ether urethane) (PEUT), induced by acetonitrile sorption at 40 °C, was studied using FTIR-ATR spectroscopy. Results compared well to those obtained through direct observation of volumetric changes using a CCD camera. Polymer dilation and penetran…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer Foaming and Composites
P. Ramesh、S. Sampath2003-11-14Analytical Chemistry
Exfoliated graphite (EG) is prepared by the thermal exfoliation of graphite intercalation compounds at different temperatures. Surface and bulk physicochemical properties of EG are followed by spectroscopic and analytical methods and are observed to be a function of exfoliation temperature. EG particles can be recompr…
Electrochemical sensors and biosensorsConducting polymers and applicationsElectrochemical Analysis and Applications
Dragan Stojkovic、Peihong Zhang、Paul E. Lammert 等 4 位作者2003-11-14Physical review. B, Condensed matter
A graphene sheet is well known to be highly stable against chemisorption of a single hydrogen atom, since a puckered ${\mathrm{sp}}^{3}$ hybridized site heavily distorts the surrounding ${\mathrm{sp}}^{2}$ framework. However, successive adjacent chemisorbed hydrogen atoms can engage in a collective stabilization media…
Graphene research and applicationsHydrogen Storage and MaterialsSurface Chemistry and Catalysis
Pietro Brandani、Pieter Stroeve2003-11-14Macromolecules
We report on the adsorption from solution of a family of triblock copolymers, copoly(ethylene oxide−propylene oxide−ethylene oxide) (PEO−PPO−PEO), on a gold surface modified by a methyl-terminated, self-assembled monolayer (SAM) of a long-chain alkanethiol (CH 3 (CH 2 ) 10 SH). We employed a surface plasmon resonance…
Surfactants and Colloidal SystemsPolymer Surface Interaction StudiesForce Microscopy Techniques and Applications
X. Peter、Róbert Langer2003-11-14Tissue Engineering
Organ transplantation has been successful since the early 1960s as a result of the success in immunologic suppression in the clinical setting ( 1 ), and has saved, and is continuing to save, countless lives, but is far from a perfect solution to tissue losses or organ failures. By far the most serious problem facing t…
Mesenchymal stem cell researchElectrospun Nanofibers in Biomedical Applications3D Printing in Biomedical Research
Hisahiro Einaga、Takashi Ibusuki、Shigeru Futamura2003-11-14Environmental Science & Technology
Gas-solid heterogeneous photocatalytic oxidation of aromatic compounds in air was carried out at room temperature with a fixed bed flow reactor. The deposition of Rh on TiO2 catalyst improved the catalyst durability in benzene photooxidation. The Rh deposition reduced the amounts of carbonaceous materials on the catal…
TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesCatalytic Processes in Materials Science
Won Young Choi、Jeong Won Kang、Sung‐Ho Hwang2003-11-14Physical review. B, Condensed matter
We have investigated the structures of copper nanowires encapsulated in carbon nanotubes using a structural optimization process applied to the steepest descent method. The results showed that the stable morphology of the cylindrical ultrathin copper nanowires in carbon nanotubes is multishell packs consisting of coax…
Carbon Nanotubes in CompositesGraphene research and applicationsAnodic Oxide Films and Nanostructures
Daxiang Cui、Furong Tian、Yong Kong 等 5 位作者2003-11-14Nanotechnology
The effects of single-walled carbon nanotubes on the polymerase chain reaction (PCR) were investigated via quantitative PCR product measurements, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (TEM) and x-ray photoelectron spectroscopy (XPS). The results showed that adding single-…
Carbon Nanotubes in CompositesAdvanced biosensing and bioanalysis techniquesNanopore and Nanochannel Transport Studies
Qinghua Zeng、Aibing Yu、Gao Qing Lu 等 4 位作者2003-11-14Chemistry of Materials
Isothermal−isobaric (NPT) molecular dynamics simulation has been performed to investigate the layering behavior and structure of nanoconfined quaternary alkylammoniums in organoclays. This work is focused on systems consisting of two clay layers and a number of alkylammoniums, and involves the use of modified Dreiding…
Polymer Nanocomposites and PropertiesConducting polymers and applicationsClay minerals and soil interactions
D. Wayne Bolen2003-11-14Humana Press eBooks
Natural selection is believed to be an unforgiving and relentless force in the evolution of life on earth. An organism that cannot adapt to a changing environment or an environment hostile to cell functions is at risk as a species. So it is important to understand the mechanisms used by plants, animals, and microorgan…
Enzyme Structure and FunctionHemoglobin structure and functionAldose Reductase and Taurine
Taku Hasobe、Hiroshi Imahori、Prashant V. Kamat 等 4 位作者2003-11-14Journal of the American Chemical Society
Novel organic solar cells prepared using quaternary self-organization of porphyrin (donor) and fullerene (acceptor) dye units by clusterization with gold nanoparticles on SnO2 electrodes exhibit the remarkable enhancement of the photoelectrochemical properties relative to the reference systems.
Quantum Dots Synthesis And PropertiesPorphyrin and Phthalocyanine ChemistryFullerene Chemistry and Applications
Isaschar Genish、Yevgeny Kats、Lior Klein 等 5 位作者2003-11-14arXiv
SrRuO3 is an itinerant ferromagnet and in its thin film form when grown on miscut SrTiO3 it has Tc of ~ 150 K and strong uniaxial anisotropy. We measured both the Hall effect and the magnetoresistance (MR) of the films as a function of the angle between the applied field and the normal to the films at temperatures abo…
Materials ScienceStrongly Correlated Electrons