Céline Roux、Nohad Gresh、Lalith E. Perera 等 5 位作者2007-01-25Journal of Computational Chemistry
Type I phosphomannose isomerase (PMI) is a Zn-dependent metalloenzyme involved in the isomerization of D-fructose 6-phosphate to D-mannose 6-phosphate. One of our laboratories has recently designed and synthesized 5-phospho-D-arabinonohydroxamate (5PAH), an inhibitor endowed with a nanomolar affinity for PMI (Roux et…
Enzyme Structure and FunctionPlant nutrient uptake and metabolismBiochemical and Molecular Research
Jared Ashcroft、Kacper Hartman、Kyle Kissell 等 9 位作者2007-01-25Advanced Materials
Single-molecule-like carbon nanocapsules derived from I2-filled ultrashort single-walled carbon nanotubes (US-tubes) have been prepared and characterized as a new paradigm in X-ray contrast-agent design. Functionalized by Bingel chemistry with external malonodiserinolamide (Ser) groups, the new I2@US-tube (Ser)n speci…
Carbon Nanotubes in CompositesGraphene research and applicationsSynthesis and Properties of Aromatic Compounds
Mohamed Karmaoui、Luís Mafra、Rute A. S. Ferreira 等 6 位作者2007-01-25The Journal of Physical Chemistry C
A general nonaqueous route has been applied for the preparation of rare-earth ordered nanocrystalline hybrid structures. In a simple one-pot reaction process, Y 3+ and Gd 3+ isopropoxides were reacted in an autoclave with 4-biphenylmethanol at 275 °C. This approach leads to crystalline rare-earth oxide thin layers (∼0…
Luminescence Properties of Advanced MaterialsLuminescence and Fluorescent MaterialsLanthanide and Transition Metal Complexes
R.R. Deshmukh、Akshath R. Shetty2007-01-25Journal of Applied Polymer Science
Abstract Of the several techniques available for surface modification, plasma processing has proved to be very appropriate. The low temperature plasma is a soft radiation source and it affects the material only over a few hundred angstroms deep, the bulk properties remaining unaffected. Plasma surface treatment also o…
Surface Modification and SuperhydrophobicityDiamond and Carbon-based Materials ResearchPolymer Nanocomposite Synthesis and Irradiation
Hong Gao、Dong Wang、Shaowei Guan 等 7 位作者2007-01-25Macromolecular Rapid Communications
Abstract A novel fluorinated hyperbranched polyimide (HBPI) is synthesized by using a new triamine monomer, 1,3,5‐tris(2‐trifluoromethyl‐4‐aminophenoxy)benzene (TFAPOB) (A 3 ), as a ‘core’ molecule, 4,4‐(hexafluoroisopropylidene)diphthalic anhydride (6FDA) as a B 2 monomer, and 3,5‐ditrifuoromethylphenyl as an endcapp…
Advanced Fiber Optic SensorsDendrimers and Hyperbranched PolymersSynthesis and properties of polymers
Vandana Singh、Ashutosh Tiwari、Sadanand Pandey 等 5 位作者2007-01-25Journal of Applied Polymer Science
Abstract The combination of carbohydrates with silicon‐based ceramic materials offers attractive means of production for high performance materials. Present article describes the synthesis of novel nanocomposites out of SiO 2 and saponified guar‐graft‐poly(acrylonitrile) (SG). Tetraethoxysilane was used as the precurs…
biodegradable polymer synthesis and propertiesAerogels and thermal insulationSilicone and Siloxane Chemistry
Dilini Pinnaduwage、Ling Zhou、Weiwei Gao 等 4 位作者2007-01-25Journal of the American Chemical Society
For the first time, we show that chlorine has a dramatic effect on the selectivity for olefin epoxidation promoted by Au. Chlorine coadsorbed with oxygen on Au(111) inhibits combustion, formation of organic acids, and deposition of residual carbon. The temperature required for formation of styrene oxide is also lowere…
Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions
Mohamad Bashree Abu Bakar、Wai Yie Leong、A. Ariffin 等 4 位作者2007-01-25Journal of Applied Polymer Science
Abstract Polypropylene (PP) hybrid composites have been produced by compounding two types of mineral fillers, viz., talc and kaolin with PP copolymer using a twin screw extruder. The PP hybrid composite was injection‐molded into dumbbell specimen for tensile, flexural, and impact properties characterizations. MFI and…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesNatural Fiber Reinforced Composites
Joseph N. Grima、Pierre‐Sandre Farrugia、Ruben Gatt 等 4 位作者2007-01-25Journal of the Physical Society of Japan
Materials normally get thinner when stretched (positive Poisson’s ratio) and expand when heated (positive thermal expansion coefficients). However, not all systems behave in this way and systems (materials or structures) which defy common expectation and become wider when stretched (negative Poisson’s ratios, NPR, com…
Polymer Nanocomposites and PropertiesCellular and Composite StructuresThermal Expansion and Ionic Conductivity
Masanari Nagasaka、Hiroshi Kondoh、Ikuyo Nakai 等 4 位作者2007-01-25The Journal of Chemical Physics
The dynamics of adsorbate structures during CO oxidation on Pt(111) surfaces and its effects on the reaction were studied by the dynamic Monte Carlo method including lateral interactions of adsorbates. The lateral interaction energies between adsorbed species were calculated by the density functional theory method. Dy…
Advanced Chemical Physics StudiesCatalytic Processes in Materials Sciencenanoparticles nucleation surface interactions
Suzanne M. Neville、Ben A. Leita、D.A. Offermann 等 8 位作者2007-01-25European Journal of Inorganic Chemistry
Abstract Four isostructural one‐dimensional polymeric iron(II) spin crossover materials containing the ligand 2‐chloro‐4,6‐bis(dipyrid‐2‐ylamino)‐1,3,5‐triazine (cddt) have been synthesised and magnetically and structurally characterised. The polymeric material Fe(NCS) 2 (cddt) · n (guest) ( 1 ), self assembles into t…
Metal complexes synthesis and propertiesMagnetism in coordination complexesElectron Spin Resonance Studies
Tianbao Ma、Yuanzhong Hu、Hui Wang 等 4 位作者2007-01-25Physical Review B
The growth of ultrathin diamondlike carbon (DLC) films is modeled using molecular dynamics (MD) simulations with the reactive empirical bond order (REBO) potential. The microstructure and stress properties, such as film density, $s{p}^{3}$ hybridization fraction and internal stress, are carefully analyzed. A close cor…
Metal and Thin Film MechanicsHigh-pressure geophysics and materialsDiamond and Carbon-based Materials Research
Chin‐Li Lu、C. P. Chang、Y. C. Huang 等 6 位作者2007-01-25Journal of the Physical Society of Japan
The low-energy electronic properties of a few graphite layers with AA and ABC stacking under application of the electric field ( F ), perpendicular to the layers, are explored through the tight-binding model. They strongly depend on the interlayer interactions, the stacking sequences, the layer numbers, and the field…
Advancements in Battery MaterialsGraphene research and applicationsGraphite, nuclear technology, radiation studies
G. S. Chilaya、Andro Chanishvili、Gia Petriashvili 等 8 位作者2007-01-25Advanced Materials
The lasing wavelength of dye-doped cholesteric liquid-crystal lasers is optically tuned by the reversible photoisomerization of the azo- or azoxy- nematic components of the cholesteric mixture. The figure demonstrates that the laser can be tuned over a range of almost 70 nm. The nematic components are easily and rever…
Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsNonlinear Dynamics and Pattern Formation
J. Alberto Rodríguez‐Velamazán、Miguel Castro、E. Palacios 等 6 位作者2007-01-25The Journal of Physical Chemistry B
The two-dimensional (2D) polymeric spin crossover (SCO) compound Fe(py)2[Ag(CN)2]2 has been synthesized. The compound shows a two-step spin transition detected by magnetic, heat capacity, and X-ray diffraction measurements. The magnetic moment shows a high-temperature step (step 1) occurring at 146.3 K without hystere…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies
Jin‐Hyon Lee、Ungyu Paik、Jae‐Young Choi 等 12 位作者2007-01-25The Journal of Physical Chemistry C
We have investigated the effect of Nafion and its resulting interaction with single-walled carbon nanotubes (SWCNTs) on the solubility and dispersion properties of SWCNTs in bisolvent. Nafion was used as a polymeric dispersant, providing both electrostatic and steric stabilization in the preparation of a stable and ho…
Carbon Nanotubes in CompositesConducting polymers and applicationsNanopore and Nanochannel Transport Studies
Xing Lü、Toyoko Imae2007-01-25The Journal of Physical Chemistry C
Multiwalled carbon nanotubes (MWCNTs) were covalently modified with fourth-generation NH 2 -terminated poly(amido amine) (G4-PAMAM) dendrimers, named CNT/DEN. The covalent linkages between CNT and dendrimers were identified by an infrared absorption spectrometry, and the weight content of G4-PAMAM dendrimers in CNT/DE…
Carbon Nanotubes in CompositesGraphene research and applicationsDendrimers and Hyperbranched Polymers
Wang、Xiajing Shi、Nancy N. Kariuki 等 10 位作者2007-01-25Journal of the American Chemical Society
The ability to tune interparticle spatial properties of nanoparticle assemblies is essential for the design of sensing materials toward desired sensitivity and selectivity. This paper reports findings of an investigation of molecularly mediated thin film assemblies of metal nanoparticles with controllable interparticl…
Gold and Silver Nanoparticles Synthesis and ApplicationsBiosensors and Analytical DetectionAdvanced Chemical Sensor Technologies
Kees Baldé、Hans A. Stil、Ad M. J. van der Eerden 等 5 位作者2007-01-25The Journal of Physical Chemistry C
The nature of the active Ti species in TiCl 3 -doped NaAlH 4, a promising hydrogen storage material, was studied as a function of the desorption temperature with Ti K-edge extended X-ray absorption fine structure (EXAFS) spectroscopy, Ti K-edge X-ray absorption near-edge structure (XANES) spectroscopy, and X-ray diffr…
Hydrogen Storage and MaterialsHybrid Renewable Energy SystemsAmmonia Synthesis and Nitrogen Reduction
Yun Hau Ng、Shigeru Ikeda、Takashi Harada 等 7 位作者2007-01-25Advanced Materials
The fabrication of Pt nanoparticles encapsulated in hollow carbon nanospheres using TiO2 nanoparticles as both the photocatalyst and the inorganic mold is demonstrated (see figure). These spheres are found to have high surface area and ultrathin shells with well-developed microporosity, and thus can be used as catalys…
Catalytic Processes in Materials ScienceMesoporous Materials and CatalysisNanomaterials for catalytic reactions