Juan José Benvenuta‐Tapia、José Alfredo Tenorio‐López、Rafael Herrera‐Nájera 等 4 位作者2008-11-18Polymer Engineering and Science
Abstract This article deals with the characterization of high trans ‐1,4‐poly(butadiene) (TPBD) prepared by means of an anionic polymerization using an initiator composed of alkyl aluminum, n ‐butyl lithium, and barium alkoxide. By controlling both initiator composition and polymerization temperature, a set of TPBD wa…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Qiang Sun、Lingling Liu、Xiulai Li 等 8 位作者2008-11-18Materials Science and Technology
Investigations of the electrical resistivity of liquid Sn–20 wt-%Sb alloy as a function of temperature were carried out by dc four probe method. An abnormal change on the resistivity–temperature curve was observed in temperature interval of 850–980°C, which indicated that temperature induced liquid–liquid structure tr…
Material Dynamics and PropertiesSolidification and crystal growth phenomenaThermodynamic and Structural Properties of Metals and Alloys
Amiya Priyam、Subhash C. Bhattacharya、Abhijit Saha2008-11-18Physical Chemistry Chemical Physics
In order to explore the feasibility of using quantum dots (QDs) as nanodiagnostic tools in cells under oxidative stress, the interaction of cysteine-functionalized CdTe QDs with peroxynitrite (PN), a powerful biological oxidant, was spectroscopically investigated. The photoluminescence (PL) of CdTe QDs was quenched to…
Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesAdvanced Nanomaterials in Catalysis
Douglas L. Irving、Clifford W. Padgett、Donald W. Brenner2008-11-18Modelling and Simulation in Materials Science and Engineering
Atomic-level dynamics of Joule heating, melting and plastic dynamics at loaded nanometer-scale Cu and Al asperity contacts are modeled using an ad hoc coupling between a numerical solution to a heat transport equation, a virtual resistor network for describing electric current flow and a molecular dynamics simulation…
Advanced ceramic materials synthesisMetal and Thin Film MechanicsCopper Interconnects and Reliability
Anna Andersson、Stefan Lundmark、Anders Magnusson 等 4 位作者2008-11-18Journal of Applied Polymer Science
Abstract The mechanisms behind the load building capabilities of a hyperbranched polymer (HBP) in polyurethane (PU) foams have been investigated, using microscopy techniques and mechanical analyses. By broadening the traditional uniaxial compression characterization of PU foams to include combined shear deformations a…
Cellular and Composite StructuresPolymer composites and self-healingDendrimers and Hyperbranched Polymers
Xiangfeng Shao、Yoshiaki Nakano、M. Sakata 等 13 位作者2008-11-18Chemistry of Materials
Electrochemical oxidation of 4,5-ethylenedioxy-4′-methyl-tetrathiafulvalene (MeEDO-TTF) afforded three types of (MeEDO-TTF) 2 PF 6 radical cation salts under different conditions: black powder, dark green plates, and black plates. The optical absorption spectra of these modifications were very similar to each other. T…
Magnetism in coordination complexesOrganic and Molecular Conductors ResearchN-Heterocyclic Carbenes in Organic and Inorganic Chemistry
Diana Visinescu、Luminita Marilena Toma、Francesc Lloret 等 6 位作者2008-11-18Dalton Transactions
The penta-[{MnIII(4-MeO-salen)(H2O)(micro-CN)}4CrIII(CN)2]+ and trinuclear [{MnIII(4-MeO-salen)(H2O)(micro-CN)}2CrIII(CN)4](-) units coexist in 1 with weak antiferromagnetic interactions which are overcome by a dc magnetic field of 2.5 T.
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesOrganic and Molecular Conductors Research
Jinlong Zhang、Weidong Shen、Peifu Gu 等 6 位作者2008-11-18Applied Optics
We show that a metal-dielectric Fabry-Perot (FP) structure can exhibit an omnidirectional transmission for p-polarized light, which means a passband is independent of the incidence angle of light. The omnidirectional passband occurs when the sum of the reflection phase shift at the metal-spacer interface and the propa…
Photonic and Optical DevicesPhotonic Crystals and ApplicationsOptical Coatings and Gratings
Christopher W. Beier、Marie A. Cuevas、Richard L. Brutchey2008-11-18Small
Novel room-temperature pathways to BaTiO(3) nanocrystals have been recently developed, which stand in contrast to traditional high-temperature methods. Peptide-assisted, bio-facilitated routes have been developed for low-temperature nanocrystal growth, in addition to two low-temperature routes completely independent o…
Ferroelectric and Piezoelectric MaterialsQuantum Dots Synthesis And PropertiesElectronic and Structural Properties of Oxides
Robert D. Groot、Simeon D. Stoyanov2008-11-18Physical Review E
A simulation model is presented, comprising elastic spheres with a short-range attraction. Besides conservative forces, radial and shear friction, and radial noise are added. The model can be used to simulate colloids, granular solids, and powders, and the parameters may be related to experimental systems via the rang…
Material Dynamics and PropertiesTheoretical and Computational PhysicsGranular flow and fluidized beds
Diego Fantini、Luigi Costa2008-11-18Polymers for Advanced Technologies
Abstract Polymeric nanofibers produced by the electrospinning technique are widely used in industrial scale production. Nanofibers chiefly find applications in filtration media and active–barrier surfaces for medical, biological, and military applications. In such applications, the quantity and the uniformity of the n…
Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsElectrospun Nanofibers in Biomedical Applications
Filimon Zacharatos、V. Gianneta、A. G. Nassiopoulou2008-11-18Nanotechnology
A combined process of electrochemical formation of self-assembled porous anodic alumina thin films on a Si substrate and Si etching through the pores was used to fabricate ideally ordered nanostructures on the silicon surface with a long-range, two-dimensional arrangement in a hexagonal close-packed lattice. Pore arra…
Nanowire Synthesis and ApplicationsNanofabrication and Lithography TechniquesAnodic Oxide Films and Nanostructures
L. Engelke、Christian Näther、Phillipp Leisner 等 4 位作者2008-11-18Zeitschrift für anorganische und allgemeine Chemie
Abstract The three new thioantimonates(V) [Ni(chxn) 3 ] 3 (SbS 4 ) 2 ·4H 2 O ( I ), [Co(chxn) 3 ] 3 (SbS 4 ) 2 ·4H 2 O ( II ) (chxn is trans‐1,2‐diaminocyclohexane) and [Co(dien) 2 ][Co(tren)SbS 4 ] 2 ·4H 2 O ( III ) (dien is diethylenetriamine and tren is tris(2‐aminoethyl)amine) were synthesized under solvothermal c…
Crystal structures of chemical compoundsCrystal Structures and PropertiesOrganometallic Compounds Synthesis and Characterization
Takao Motohashi、Toshio Kimura2008-11-18Journal of the American Ceramic Society
The effects of chemical composition on texture development have been examined for Bi 0.5 Na 0.5 TiO 3 prepared by the reactive‐templated grain growth method, using stoichiometric, Na‐excess, and Na‐deficient specimens. The highly textured material is obtained by heating the stoichiometric specimen at about 1100°C. Tex…
Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisElectronic and Structural Properties of Oxides
Dan Liao、Xinwen Wang、Peter H. Lin 等 5 位作者2008-11-18Journal of Cellular and Molecular Medicine
Establishing thrombosis-resistant surface is crucial to develop tissue-engineered small diameter vascular grafts for arterial reconstructive procedures. The objective of this study was to evaluate the stability and anti-coagulation properties of heparin covalently linked to decellularized porcine carotid arteries. Cel…
Electrospun Nanofibers in Biomedical ApplicationsCardiac and Coronary Surgery TechniquesTissue Engineering and Regenerative Medicine
Sivakumar Gajjeraman、Gen He、Karthikeyan Narayanan 等 4 位作者2008-11-18Advanced Functional Materials
Mechanical mismatch and the lack of interactions between implants and the natural tissue environment are the major drawbacks in bone tissue engineering. Biomaterials mimicking the self-assembly process and the composition of the bone matrix should provide new route for fabricating biomaterials possessing novel osteoco…
Bone Tissue Engineering MaterialsSilk-based biomaterials and applicationsDiatoms and Algae Research
David Jauffrès、Olivier Lame、G. Vigier 等 4 位作者2008-11-18Macromolecules
For the first time, bulk material containing high fraction of nascent phase has been processed and analyzed. The obtained materials are “auto-composites” composed of nascent and recrystallized polymer. Obtaining such materials has been made possible thanks to high velocity compaction (HVC). Contrary to conventional pr…
Polymer crystallization and propertiesTribology and Wear AnalysisPolymer Foaming and Composites
Moisés Frı́as、Olga Rodríguez、Rosario García Jiménez 等 4 位作者2008-11-18Journal of the American Ceramic Society
Obtaining pozzolanic materials from recycling of industrial waste and byproducts is a priority action of environmental policy all over the world. This paper describes the effect of activation conditions on the reaction kinetics in calcined clay waste (CCW)/calcium hydroxide systems. The CCW used in this work shows exc…
Concrete and Cement Materials ResearchLayered Double Hydroxides Synthesis and ApplicationsMagnesium Oxide Properties and Applications
Michael E. Flatté、Alexei A. Kornyshev、Michael Urbakh2008-11-18Proceedings of the National Academy of Sciences
Control of the fundamental absorption edge of a quantum dot with an applied electric field has been limited by the breakdown fields of the solid-state material surrounding the dot. However, much larger fields can be applied at the interface of two immiscible electrolytic solutions (ITIES) in an electrochemical cell. T…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsElectrochemical Analysis and Applications
Anna Kromm、William S. Sheldrick2008-11-18Zeitschrift für anorganische und allgemeine Chemie
Abstract Hydrothermal reaction of [MnCl 2 (terpy)] with elemental As and Se at 150 °C in 1:2:4 and 1:4:8 molar ratios in the presence of Cs 2 CO 3 affords the complexes [{Mn(terpy)} 2 (As 2 Se 5 )] 2 ( 1 ) and [{Mn(terpy)} 2 (As 4 Se 8 )] ( 2 ), respectively. 1 contains dipyramidal [As 2 Se 5 ] 4− ligands that bridge…
Crystal structures of chemical compoundsCrystal Structures and PropertiesOrganometallic Compounds Synthesis and Characterization