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Synthesis and Luminescence Properties of Cube-Structured CaSnO[sub 3]∕RE[sup 3+](RE=Pr,Tb) Long-Lasting Phosphors

Bingfu Lei、Bin Li、Haoran Zhang 等 6 位作者2007-01-01Journal of The Electrochemical Society

Uniform and cube-structured RE3+ (RE=Pr,Tb) -doped CaSn O3 phosphors have been successfully synthesized by a two-step approach including the room-temperature synthesis of CaSn (OH)6 precursors with the help of cetyltrimethylammoniumbromide surfactant and then converted to CaSn O3 by calcination at 750°C. The decomposi…

Luminescence Properties of Advanced MaterialsNuclear materials and radiation effectsElectronic and Structural Properties of Oxides

Remarkable isolation, structural characterisation and electrochemistry of unexpected scrambling analogues of 5-ferrocenyl-10,20-diphenylporphyrin

Aurélien Auger、Alfred Muller、Jannie C. Swarts2007-01-01Dalton Transactions

Selective condensation of 5-ferrocenyldipyrromethane, 1, and dipyrromethane, 2, with benzaldehyde, 3, led to 5-ferrocenyl-10,20-diphenylporphyrin, 5. During the condensation, an unusually large amount of scrambling was observed which led to the isolation of two further ferrocenylated porphyrin analogues 6 and 7. The s…

Molecular Sensors and Ion DetectionPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

Hydrogen bonding assisted switchable fluorescence in self-assembled complexes containing diarylethene: controllable fluorescent emission in the solid state

Shuzhang Xiao、Ying Zou、Juncheng Wu 等 7 位作者2007-01-01Journal of Materials Chemistry

Switchable supramolecular self-assemblies based on the interaction between pyridine group containing diarylethene unit (BTEPy) and carboxylic acids were designed and fabricated in this report. Fluorescent enhancement was observed in all of these assembled systems not only in solution, but also in the solid state as we…

Luminescence and Fluorescent MaterialsSupramolecular Self-Assembly in MaterialsPhotochromic and Fluorescence Chemistry

Inkjet deposition and characterization of transparent conducting electroactive polyaniline composite films with a high carbon nanotube loading fraction

William R. Small、Fatemeh Masdarolomoor、Gordon G. Wallace 等 4 位作者2007-01-01Journal of Materials Chemistry

We report the synthesis and inkjet processing of water dispersable polyaniline composite materials with a high carbon nanotube loading fraction. Printed films displayed good optical transparency, sheet resistance and electrochromic behaviour, allowing switching between yellow, green and blue.

Advanced Sensor and Energy Harvesting MaterialsConducting polymers and applicationsTransition Metal Oxide Nanomaterials

Microstructure Analysis of Sintered Nd-Fe-B Magnets Improved by Tb-Vapor Sorption

Natsuki Watanabe、Masaru Itakura、Noriyuki Kuwano 等 6 位作者2007-01-01MATERIALS TRANSACTIONS

The surface treatment with Tb-vapor sorption improves the magnetic properties of small-sized magnets. Microstructure of the Tb-treated magnets was investigated by transmission electron microscopy (TEM). By applying the Tb-treatment, the diffusion of Tb through grain boundaries occurred even inside the magnets, and the…

Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys

Particle size dependent adsorption and reaction kinetics on reduced and partially oxidized Pd nanoparticles

Tobias Schalow、Björn Brandt、David E. Starr 等 8 位作者2007-01-01Physical Chemistry Chemical Physics

Combining scanning tunneling microscopy (STM), IR reflection absorption spectroscopy (IRAS) and molecular beam (MB) techniques, we have investigated particle size effects on a Pd/Fe(3)O(4) model catalyst. We focus on the particle size dependence of (i) CO adsorption, (ii) oxygen adsorption and (iii) Pd nanoparticle ox…

Advanced Chemical Physics StudiesCatalytic Processes in Materials Sciencenanoparticles nucleation surface interactions

A discrete conglomerate of a distorted Mo(v)-porphyrin with a directly coordinated keggin-type polyoxometalate

Atsutoshi Yokoyama、Takahiko Kojima、Kei Ohkubo 等 4 位作者2007-01-01Chemical Communications

The reaction of a saddle-distorted Mo(v)-dodecaphenylporphyrin complex and a Keggin-type polyoxometalate gives a discrete and nanosized molecule, [{Mo(DPP)(O)}(2)(H(2)SiW(12)O(40))], which involves direct coordination between the Mo(v) centers and terminal oxo groups of the polyoxometalate and exhibits excellent stabi…

Metal-Organic Frameworks: Synthesis and ApplicationsPorphyrin and Phthalocyanine ChemistryPolyoxometalates: Synthesis and Applications

Phase-field modeling for electrodeposition process

Yasushi Shibuta、Yoshinao Okajima、Toshio SUZUKI2007-01-01Science and Technology of Advanced Materials

A novel phase-field model for electrochemical processes, in which cations were driven by an electrostatic potential coupled with a thermodynamic potential, was formulated from a variation of the Ginzburg–Landau free-energy functional. Using this model, an electrodeposition process of copper deposits from copper-sulfat…

Aluminum Alloy Microstructure PropertiesSolidification and crystal growth phenomenaFluid Dynamics and Thin Films

Water-in-carbon dioxide emulsions stabilized with hydrophobic silica particles

Stephanie Adkins、Dhiren Gohil、Jasper L. Dickson 等 5 位作者2007-01-01Physical Chemistry Chemical Physics

W/C emulsions were stabilized using hydrophobic silica particles adsorbed at the interface, resulting in average droplet diameters as low as 7.5 microm. A porous cross-linked shell was formed about a hydrophilic (colloidal and fumed) silica core with a trifunctional silylating agent, (heptadecafluoro-1,1,2,2-tetrahydr…

Enhanced Oil Recovery TechniquesSurfactants and Colloidal SystemsPickering emulsions and particle stabilization

Profiting from nature: macroporous copper with superior mechanical properties

Min Lai、Alex N. Kulak、D. Law 等 6 位作者2007-01-01Chemical Communications

Macroporous copper with a complex hyperbolic morphology and superior mechanical properties was produced by replicating the remarkable form of a sea urchin skeletal plate using templated electrochemical deposition.

Supercapacitor Materials and FabricationAnodic Oxide Films and NanostructuresNanoporous metals and alloys

Spatially-resolved analysis of nanoparticle nucleation and growth in a microfluidic reactor

Thomas L. Sounart、Paul A. Safier、J. Voigt 等 7 位作者2007-01-01Lab on a Chip

Microfluidic systems provide a unique platform for investigation of fundamental reaction processes, which is critical to understanding how to control nanostructure synthesis on a production scale. We have examined the synthesis of cysteine-capped CdS quantum dot nanocrystals (CdS-Cys) between two interdiffusing reagen…

Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesInnovative Microfluidic and Catalytic Techniques Innovation

Varieties of exploratory experimentation in nanotoxicology.

Kevin C. Elliott2007-01-01PubMed

There has been relatively little effort to provide a systematic overview of different forms of exploratory experimentation (EE). The present paper examines the growing subdiscipline of nanotoxicology and suggests that it illustrates at least four ways that researchers can engage in EE: searching for regularities; deve…

Nanoparticles: synthesis and applicationsChemistry and Chemical EngineeringNanotechnology research and applications

The rutile type and its derivatives†

W. H. Baur2007-01-01Crystallography Reviews

Rutile type crystal structures and their derivatives are based on the same topology of primary bonds: straight chains of edge-sharing coordination octahedra are connected via corner-sharing to four surrounding chains. Twenty derivatives are known. Some are based on an ordering of cations, others on an ordering of anio…

Crystal Structures and PropertiesPolyoxometalates: Synthesis and ApplicationsCatalysis and Oxidation Reactions

A facile route to CdTe nanoparticles and their use in bio-labelling

Mark Green、Hannah Harwood、Claire Barrowman 等 8 位作者2007-01-01Journal of Materials Chemistry

A simple synthetic route to highly luminescent, water-soluble CdTe nanoparticles and their use in biological imaging is presented. The new synthetic pathway utilises a simply-prepared, water-soluble tellurium precursor which is easily handled and stored and the resulting growth processes are discussed.

Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesNanocluster Synthesis and Applications

Locking self-assembly: strategies and outcomes

Jim A. Thomas2007-01-01Chemical Society Reviews

In the last ten to fifteen years, self-assembly has been increasingly employed to construct discrete supramolecular structures. In most cases, due to the thermodynamic factors that drive the self-assembly process, the final architectures produced by this approach are not kinetically robust. Thus, when robust structure…

Supramolecular Chemistry and ComplexesLuminescence and Fluorescent MaterialsSupramolecular Self-Assembly in Materials

Unconventional Approach for Demineralization of Deproteinized Crustacean Shells for Chitin Production

N. S. Mahmoud、A. E. Ghaly、F. Arab2007-01-01American journal of biochemistry & biotechnology/American journal of biochemistry and biotechnology

Chitin is a versatile environmentally friendly modern material. It has a wide range of applications in areas such as water treatment, pulp and paper, biomedical devices and therapies, cosmetics, membrane technology and biotechnology and food applications. Crustacean waste is the most important chitin source for commer…

Nanocomposite Films for Food Packagingbiodegradable polymer synthesis and propertiesPolysaccharides Composition and Applications

Characterization of Tunable Metamaterial Elements Using MEMS Switches

Thomas H. Hand、Steven A. Cummer2007-01-01IEEE Antennas and Wireless Propagation Letters

An experimental demonstration and analysis of a dual-state switchable magnetic metamaterial element in which the resonance excitation of the particle is controlled using an RF microelectromechanical (MEMS) switch is presented. By controlling the resonant properties of the individual ring, unit cells composed of such e…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

Two-photon degradable supramolecular assemblies of linear-dendritic copolymers

Justin L. Mynar、Andrew P. Goodwin、Joel A. Cohen 等 6 位作者2007-01-01Chemical Communications

Micelles of dendritic-linear copolymers have been developed to release a payload after infrared stimulus.

Advanced Polymer Synthesis and CharacterizationDendrimers and Hyperbranched PolymersPhotochromic and Fluorescence Chemistry

Preparation of collagen-coated electrospun nanofibers by remote plasma treatment and their biological properties

Yuanyuan Duan、Zhongyi Wang、Wei Yan 等 6 位作者2007-01-01Journal of Biomaterials Science Polymer Edition

Non-woven poly(epsilon-caprolactone) (PCL) nanofibers were prepared by electrospinning and type-I collagen was then immobilized on the nanofibers after surface modification by remote plasma treatment. A collagen-coated surface was observed and characterized using scanning electron microscopy (SEM), contact-angle measu…

Electrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applicationsTissue Engineering and Regenerative Medicine