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Ruthenium Nitrosyls Derived from Tetradentate Ligands Containing Carboxamido-N and Phenolato-O Donors: Syntheses, Structures, Photolability, and Time Dependent Density Functional Theory Studies

N.L. Fry、Michael J. Rose、D.L. Rogow 等 6 位作者2010-01-11Inorganic Chemistry

In order to examine the role(s) of designed ligands on the NO photolability of {Ru-NO}(6) nitrosyls, a set of three nitrosyls with ligands containing two carboxamide groups along with a varying number of phenolates have been synthesized. The nitrosyls namely, (NEt(4))(2)[(hybeb)Ru(NO)(OEt)] (1), (PPh(4))[(hypyb)Ru(NO)…

Nitric Oxide and Endothelin EffectsPolyoxometalates: Synthesis and ApplicationsVanadium and Halogenation Chemistry

Synthesis and field emission properties of nanocrystalline diamond/carbon nanowall composite films

Kungen Teii、Masahiro Nakashima2010-01-11Applied Physics Letters

Nanostructured composite films consisting of almost vertically aligned graphene layers, so-called “carbon nanowalls” (CNWs), and nanocrystalline diamond films are prepared by plasma-enhanced chemical vapor deposition. The space between the walls for the composite films is widened compared to simple CNWs by interceptio…

Carbon Nanotubes in CompositesGraphene research and applicationsDiamond and Carbon-based Materials Research

Intercalation of Bulk Guest into LDH via Osmotic Swelling/Restoration Reaction: Control of the Arrangements of Thiacalix[4]arene Anion Intercalates

Gailing Huang、Shulan Ma、Xinhua Zhao 等 5 位作者2010-01-11Chemistry of Materials

Water-soluble tetrasodium p -sulfonatothiacalix[4]arene (TCAS) was intercalated into MgAl-LDH using an osmotic swelling/restoration reaction of the LDH in formamide. The restoration process was investigated in detail. The arrangement of TCAS in the interlayer can be controlled through adjusting the area per unit charg…

Layered Double Hydroxides Synthesis and ApplicationsCovalent Organic Framework ApplicationsSynthesis and properties of polymers

Effects of Matrix Composition, Microstructure, and Viscoelasticity on the Behaviors of Vocal Fold Fibroblasts Cultured in Three-Dimensional Hydrogel Networks

Alexandra J. E. Farran、Sean S. Teller、Amit K. Jha 等 9 位作者2010-01-11Tissue Engineering Part A

Vocal fold diseases and disorders are difficult to treat surgically or therapeutically. Tissue engineering offers an alternative strategy for the restoration of functional vocal folds. As a first step toward vocal fold tissue engineering, we investigated the responses of primary vocal fold fibroblasts (PVFFs) to two t…

Cellular and Composite StructuresElectrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applications

The Effect of (Ag, Ni, Zn)-Addition on the Thermoelectric Properties of Copper Aluminate

S. Yanagiya、Ngo Van Nong、Jianxiao Xu 等 4 位作者2010-01-11Materials

Polycrystalline bulk copper aluminate Cu1-x-yAgxByAlO2 with B = Ni or Zn were prepared by spark plasma sintering and subsequent thermal treatment. The influence of partial substitution of Ag, Ni and Zn for Cu-sites in CuAlO2 on the high temperature thermoelectric properties has been studied. The addition of Ag and Zn…

Advanced Thermoelectric Materials and DevicesGas Sensing Nanomaterials and Sensorsnanoparticles nucleation surface interactions

Phase Evolution in Low-Dimensional Niobium Oxide Synthesized by a Topochemical Method

Lihong Li、Jinxia Deng、Ranbo Yu 等 6 位作者2010-01-11Inorganic Chemistry

In this paper, we report a catalyst-free topochemical method, combined with molten salt synthesis (MSS), to synthesize, on a large scale, rodlike and platelet single crystals of Nb(2)O(5). Rodlike KNb(3)O(8) and platelet K(4)Nb(6)O(17), which were fabricated as the precursors by the molten salt method, were treated by…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsMicrowave Dielectric Ceramics Synthesis

Ligand capping effect for dye solar cells with a CdSe quantum dot sensitized ZnO nanorod photoanode

Xiao Wei Sun、Jing Chen、Jun Ling Song 等 6 位作者2010-01-11Optics Express

We report a quantum dot sensitized solar cell (QDSSC) with a thioglycolic acid (TGA) capped CdSe quantum dot (QD) sensitized ZnO nanorod photoanode. As revealed by UV-Vis absorption spectrum and transmission electron microscopy, the quantum dots can be effectively adsorbed onto ZnO nanorods. By studying the emission d…

Advanced Photocatalysis TechniquesQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Ultrafast insulator-to-metal phase transition as a switch to measure the spectrogram of a supercontinuum light pulse

Federico Cilento、Claudio Giannetti、G. Ferrini 等 9 位作者2010-01-11Applied Physics Letters

In this letter we demonstrate the possibility to determine the temporal and spectral structure (spectrogram) of a complex light pulse exploiting the ultrafast switching character of a nonthermal photoinduced phase transition. As a proof, we use a VO2 multifilm, undergoing an ultrafast insulator-to-metal phase transiti…

Advanced Fiber Optic SensorsAdvanced Fiber Laser TechnologiesTransition Metal Oxide Nanomaterials

Structure ofGeO2glass at pressures up to 8.6 GPa

James W. E. Drewitt、Philip S. Salmon、A C Barnes 等 6 位作者2010-01-11Physical Review B

The structure of ${\text{GeO}}_{2}$ glass at pressures extending from ambient to 8.6(5) GPa was measured at $\ensuremath{\simeq}25\text{ }\ifmmode^\circ\else\textdegree\fi{}\text{C}$ by using in situ neutron diffraction. The results show a gradual change in the intermediate range order with increasing density as manif…

High-pressure geophysics and materialsMaterial Dynamics and PropertiesGlass properties and applications

State-Selective Electron Transfer in an Unsymmetric Acceptor−Zn(II)porphyrin−Acceptor Triad: Toward a Controlled Directionality of Electron Transfer from the Porphyrin S2 and S1 States as a Basis for a Molecular Switch

Staffan Wallin、Cyrille Monnereau、Errol Blart 等 6 位作者2010-01-11The Journal of Physical Chemistry A

A series of Zn(II) porphyrin (ZnP) compounds covalently linked to different electron acceptor units, naphthaleneimide (NI) and naphthalenediimide (NDI), are reported. The aim was to demonstrate a state-selective direction of electron transfer, where excitation to the lowest excited S(1) state of the porphyrin (Q-band…

Porphyrin and Phthalocyanine ChemistryMolecular Junctions and NanostructuresPhotochemistry and Electron Transfer Studies

PREPARATION AND CHARACTERIZATION OF GELATIN EXTRACTED FROM THE SKINS OF ROHU (LABEO ROHITA) AND COMMON CARP (CYPRINUS CARPIO)

George Ninan、Jose Joseph、Zynudheen Aliyamveetil Abubacker2010-01-11Journal of Food Processing and Preservation

ABSTRACT Gelatin was extracted from the skins of rohu and Common carp, and its physicochemical properties were studied. The yield of gelatin obtained from the skin of rohu and Common carp were 12.93 and 12%, respectively. The corresponding viscosity values were 6.06cP and 5.96cP. Rohu and Common carp skin gelatin had…

Meat and Animal Product QualityProtein Hydrolysis and Bioactive PeptidesCollagen: Extraction and Characterization

Infrared and Raman spectra of AA-stacking bilayer graphene

Yuehua Xu、Xiaowei Li、Jinming Dong2010-01-11Nanotechnology

The infrared (IR) absorption and resonant Raman spectra of the undoped AA-stacking bilayer graphene have been calculated using density-functional theory in the local density approximation. It is found that the undoped AA-stacking bilayer graphene exhibits a different characteristic jump and peak structure in its IR sp…

Carbon Nanotubes in CompositesGraphene research and applications2D Materials and Applications

Control of Crystal Polymorph of Glycine by Photon Pressure of a Focused Continuous Wave Near-Infrared Laser Beam

Thitiporn Rungsimanon、Ken‐ichi Yuyama、Teruki Sugiyama 等 6 位作者2010-01-11The Journal of Physical Chemistry Letters

Crystal polymorph of glycine is controlled by tuning the power of a linearly polarized continuous wave 1064-nm laser beam. Upon focusing the beam to the air/solution interface of a supersaturated glycine/D 2 O solution, its single crystal is spatiotemporally formed at a focal spot within a few seconds to a few tens of…

Crystallography and molecular interactionsSpectroscopy and Quantum Chemical StudiesCrystallization and Solubility Studies

Surface Modification and Functionalization of Microporous Hybrid Material for Luminescence Sensing

Huanrong Li、Wenjing Cheng、Yu Wang 等 6 位作者2010-01-11Chemistry - A European Journal

We report here on the preparation of novel luminescent core-shell material by initial coating with polyelectrolytes and subsequent with a silica shell on the lanthanide complexes loaded zeolite L microcrystals. Lanthanide complexes loaded zeolite L was prepared by insertion of 2-thenoyltrifluoroacetone (TTA) into the…

Luminescence Properties of Advanced MaterialsLuminescence and Fluorescent MaterialsLanthanide and Transition Metal Complexes

Combining Chemoselective Ligation with Polyhistidine-Driven Self-Assembly for the Modular Display of Biomolecules on Quantum Dots

Duane E. Prasuhn、Juan B. Blanco‐Canosa、Gary J. Vora 等 8 位作者2010-01-11ACS Nano

One of the principle hurdles to wider incorporation of semiconductor quantum dots (QDs) in biology is the lack of facile linkage chemistries to create different types of functional QD--bioconjugates. A two-step modular strategy for the presentation of biomolecules on CdSe/ZnS core/shell QDs is described here which uti…

Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesMolecular Junctions and Nanostructures

Lasing in metamaterial nanostructures

Anan Fang、Thomas Koschny、Costas M Soukoulis2010-01-11Journal of Optics

A self-consistent computational scheme is presented for one-dimensional (1D) and two-dimensional (2D) metamaterial systems with gain incorporated into the nanostructures. The gain is described by a generic four-level system. The loss compensation and the lasing behavior of the metamaterial system with gain are studied…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchQuantum optics and atomic interactions

Surfactant‐Encapsulated Polyoxometalates as Immobilized Supramolecular Catalysts for Highly Efficient and Selective Oxidation Reactions

Wei Qi、Yizhan Wang、Wen Li 等 4 位作者2010-01-11Chemistry - A European Journal

A type of interesting immobilized supramolecular catalysts based on surfactant-encapsulated polyoxometalates has been developed for oxidation reactions. Through a sol-gel process with tetraethyl orthosilicate, hydroxyl-terminated surfactant-encapsulated polyoxometalate complexes have been covalently and uniformly boun…

Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and ReactionsOxidative Organic Chemistry Reactions

Alternating Silica/Polymer Multilayer Hybrid Microspheres Templates for Double-shelled Polymer and Inorganic Hollow Microstructures

Guoliang Li、Qin Shi、Shaojun Yuan 等 6 位作者2010-01-11Chemistry of Materials

Alternating silica/polymer tetra- and penta-layer hybrid microspheres were first prepared via combined inorganic sol−gel reaction and distillation-precipitation polymerization. pH-responsive poly(methacrylic acid) (PMAA) hollow microspheres with asymmetric double-shells were produced after HF etching of the silica lay…

Mesoporous Materials and CatalysisAerogels and thermal insulationElectrophoretic Deposition in Materials Science

Local antiferromagnetic correlations in the iron pnictide superconductorsLaFeAsO1−xFxandCa(Fe1−xCox)2As2as seen via normal-state susceptibility

R. Klingeler、N. Leps、I. Hellmann 等 15 位作者2010-01-11Physical Review B

We have studied the interplay of magnetism and superconductivity in ${\text{LaFeAsO}}_{1\ensuremath{-}x}{\text{F}}_{x}$ and $\text{Ca}{({\text{Fe}}_{1\ensuremath{-}x}{\text{Co}}_{x})}_{2}{\text{As}}_{2}$. While antiferromagnetic spin-density wave formation is suppressed and superconductivity evolves, all samples show…

Rare-earth and actinide compoundsCorporate Taxation and AvoidanceIron-based superconductors research

Density Functional Theory Study of the Interaction of Cu, Ag, and Au Atoms with the Regular CeO2(111) Surface

María M. Branda、Norge Cruz Hernández、Javier Fdez. Sanz 等 4 位作者2010-01-11The Journal of Physical Chemistry C

The interaction of Cu, Ag, and Au atoms with the regular terrace sites of the CeO 2 (111) surface has been investigated within the LDA+ U and GGA+ U density functional theory approaches using different U values and periodic slab surface models. For the interaction of Cu and Ag with this surface the different methods c…

Catalytic Processes in Materials ScienceRadioactive element chemistry and processing