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Detection of nitro explosives via LSPR sensitive silver clusters embedded in porous silica

Wei Zou、Wenwen Liu、Limei Luo 等 6 位作者2012-01-01Journal of Materials Chemistry

LSPR sensitive silver clusters embedded in porous silica, which show high LSPR sensitivity to both nitroaromatic and nitroaliphatic explosives, are prepared by a reverse microemulsion. The performance of this hybrid nanostructure is due to the combination of accumulation of nitro explosives in the porous silica and th…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesNanocluster Synthesis and Applications

Temperature Dependence of Charge Carrier Properties in Single Crystal CVD Diamond Detectors

H. Jansen、D. Dobos、V. Eremin 等 5 位作者2012-01-01Physics Procedia

Single crystal chemical-vapour deposition (scCVD) diamonds are interesting for a wide range of applications. For many of them a good understanding of the temperature dependence of charge carrier transport mechanisms and properties is crucial. Measurements on the temperature dependence of charge carrier movement in scC…

Diamond and Carbon-based Materials ResearchIon-surface interactions and analysis

Progress on Silicone Packaging Materials for Power LED

Xibing Zhan、Junying Zhang、Xiaolu Wang 等 4 位作者2012-01-01Procedia Engineering

Encapsulation materials are very vital to the power light emitting diode packaging and become a hot topic for worldwide researchers because the devices packaging and assembly yield, and the devices reliability and lifespan are determined by the quality of packaging and assembly materials as well as their processing. I…

GaN-based semiconductor devices and materialsSynthesis and properties of polymersSilicone and Siloxane Chemistry

Atomistic Study of Twinning in Gold Nanowhiskers

Erik Bitzek2012-01-01Journal of Solid Mechanics and Materials Engineering

Twinning can become an important deformation mechanism in fcc metals once the crystal size is reduced to the sub-micron scale, e.g., in nanocrystals or nanowhiskers. The study of the twinning process, the interactions between propagating twins and between dislocations and twins is therefore important for a better unde…

Microstructure and mechanical propertiesAluminum Alloys Composites PropertiesAdvanced Materials Characterization Techniques

Phase-field Simulations of Grain Growth in Two-dimensional Systems Containing Finely Dispersed Coarsening Particles

Yoshihiro Suwa2012-01-01ISIJ International

In this study, we have performed phase-field simulations of grain growth in two-dimensional systems containing finely dispersed coarsening particles. In particular, the effects of the Ostwald ripening of particles on the grain growth kinetics and the morphology of the matrix grains have been investigated. After reachi…

Aluminum Alloy Microstructure PropertiesSolidification and crystal growth phenomenananoparticles nucleation surface interactions

Optical and Structural Properties of Silicon Nanocrystals Embedded in SiO x Matrix Obtained by HWCVD

Antonio Coyopol、G. Garcı́a-Salgado、T. Díaz-Becerril 等 9 位作者2012-01-01Journal of Nanomaterials

The interest in developing optoelectronic devices integrated in the same silicon chip has motivated the study of Silicon nanocrystals (Si‐ncs) embedded in SiO x (nonstoichiometric silicon oxides) films. In this work, Si‐ncs in SiO x films were obtained by Hot Wire Chemical Vapor Deposition (HWCVD) at 800, 900, and 100…

Thin-Film Transistor TechnologiesSilicon Nanostructures and PhotoluminescenceNanowire Synthesis and Applications

GNP confinement at the interface of cationic reverse micelles: influence in improving the lipase activity

Moumita Ghosh、Subhabrata Maiti、Sayanti Brahmachari 等 4 位作者2012-01-01RSC Advances

The present work reports thiol-assisted confinement of gold nanoparticles (GNPs) at the interface of reverse micelles with the aim to enhance the interfacial area and thereby the efficiency of surface-active Chromobacterium viscosum lipase. The strong gold capping ability of optimally hydrophobic thiols (1-dodecanethi…

Gold and Silver Nanoparticles Synthesis and ApplicationsElectrochemical sensors and biosensorsEnzyme Catalysis and Immobilization

Research Progress on Ni-Based Antiperovskite Compounds

Peiqing Tong、Yong Sun2012-01-01Advances in Condensed Matter Physics

The superconductivity in antiperovskite compound MgCNi 3 was discovered in 2001 following the discovery of the superconducting MgB 2 . In spite of its lower superconducting transition temperature (8 K) than MgB 2 (39 K), MgCNi 3 has attracted considerable attention due to its high content of magnetic element Ni and th…

Rare-earth and actinide compoundsSuperconductivity in MgB2 and AlloysThermal Expansion and Ionic Conductivity

Synthesis of molecular photoswitches based on azobenzene with an organosilane anchor

Stephanie Möller、Uwe Pliquett、Christian Hoffmann2012-01-01RSC Advances

The incorporation of photoactive molecules in thin layers enables photoinduced changes in wettability, e.g. azobenzenes, or micropatterning by deprotection of functional groups, e.g. applying nitroveratryl compounds. This paper describes a synthetic route for obtaining an azobenzene with a silane anchor. The chemical…

Molecular Junctions and NanostructuresLuminescence and Fluorescent MaterialsPhotochromic and Fluorescence Chemistry

Through-Thickness Thermal Conductivity Prediction Study on Nanocomposites and Multiscale Composites

Michael Makoto Zimmer、Xinyu Fan、Jianwen Bao 等 7 位作者2012-01-01Materials Sciences and Applications

In this research, a modeling and experimental study was conducted to explore the effects of nanoparticle type (aluminum nanoparticles and carbon nanotubes), filler concentration and interactions between the nanoparticle and reinforcing fibers on through-thickness conductivity of nanoparticle/epoxy nanocomposites and n…

Carbon Nanotubes in CompositesThermal properties of materialsTribology and Wear Analysis

Multiphase Field Simulation of Austenite-to-Ferrite Transformation Accelerated by GPU Computing

Akinori Yamanaka、Tomohiro Takaki、Takayuki Aoki 等 4 位作者2012-01-01Journal of Computational Science and Technology

The multiphase field (MPF) method is recognized as a powerful numerical method to simulate microstructural evolutions, such as solidification, grain growth, recrystallization, and phase transformation, in various materials. However, because we need to solve the time evolution equations for multiple-order parameters de…

Aluminum Alloy Microstructure PropertiesSolidification and crystal growth phenomenaMetallurgy and Material Forming

In situ surface reaction induced adhesion force change for mobility control, droplet sorting and bio-detection

Xinjie Liu、Zhilu Liu、Yong‐Min Liang 等 4 位作者2012-01-01Soft Matter

Water droplet mobility can be reversibly controlled based on surface grafted stimuli-responsive polymer brushes by in situ liquid–solid interface chemical reactions. By regulating the pH of a droplet in situ, the real-time dynamic tuning of the chain conformation between the swollen state (hydrophilic) and collapsed s…

Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesNanofabrication and Lithography Techniques

Effect of the Metallization on the Resonances of THz Fishnet Metamaterials

Cumali Sabah、Hartmut G. Roskos2012-01-01Journal of the European Optical Society Rapid Publications

In this numerical study, the influence of the choice of metal (and hence of the conductivity) used for the fabrication of THz fishnet metamaterials is investigated. We explore an exemplary structure for which surface-plasmon-polaritons offer – assuming sufficiently good conductivity – pronounced extraordinary transmis…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchPhotonic Crystals and Applications

Influence of Microstructural Parameters of LSC Cathodes on the Oxygen Reduction Reaction Parameters

Indrek Kivi、Erik Anderson、Priit Möller 等 5 位作者2012-01-01Journal of The Electrochemical Society

The solid oxide fuel cell single cells with porous cathodes prepared at various sintering temperatures, having remarkable differences in micro/meso porosity, were studied using impedance, cyclic voltammetry and chronoamperometry measurement methods. Atomic force microscopy, scanning electron microscopy, focused ion be…

Advancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides

Qualidade de Compensados Fabricados com Adesivos à Base de Tanino-formaldeído de Pinus oocarpa e Fenol-formaldeído

Bruno Couto da Silva、Michel Cardoso Vieira、Gisely de Lima Oliveira 等 7 位作者2012-01-01Floresta e Ambiente

Este trabalho teve por objetivo avaliar a qualidade de compensados fabricados com adesivos base de taninos da casca de Pinus oocarpa e Fenol-Formaldedo (FF). O plano experimental foi composto de quatro tratamentos: Tanino-Formaldedo (TF); Fenol-Formaldedo (FF); FF + 10%TF (90:10), e FF + 20% TF (80:20). Os painis fora…

Wood Treatment and PropertiesNatural Fiber Reinforced CompositesLignin and Wood Chemistry

Facile Water/Ionic Liquid/Organic Triphase Interfacial Synthesis of Coral-Like Polyaniline toward High-Performance Electrochemical Capacitors

Changzhou Yuan、Linrui Hou、Laifa Shen 等 4 位作者2012-01-01Journal of The Electrochemical Society

Facile Water/Ionic Liquid/Organic Triphase Interfacial Synthesis of Coral-Like Polyaniline toward High-Performance Electrochemical Capacitors, Yuan, Changzhou, Hou, Linrui, Shen, Laifa, Zhang, Xiaogang

Supercapacitor Materials and FabricationAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications

Multiferroics application: Magnetic controlled piezoelectric transformer

L. Kozielski、Frank Clemens2012-01-01Processing and Application of Ceramics

Dense lead zirconate titanate (PZT) ceramics is typically used for fabrications of high power piezoelectric devices. In case of lanthanum and iron ions doping into PZT solid solution (PLFZT), material exhibiting both piezoelectric and magnetic properties can be obtained. Among many investigated compositions particular…

Ferroelectric and Piezoelectric MaterialsMagnetic and transport properties of perovskites and related materialsMultiferroics and related materials

Bulk or surface grafted silylated Ru(ii) complexes on silica as luminescent nanomaterials

Sandra Cousinié、Léïla Mauline、Marie Gressier 等 7 位作者2012-01-01New Journal of Chemistry

A series of Ru(II) complexes with monosilylated-dipyridine ligand have been synthesized and fully characterized and were then covalently attached to silica nanoparticles. Two types of hybrids were obtained depending on the experimental procedure. In the first approach, metal complexes were incorporated inside the sili…

Metal complexes synthesis and propertiesAdvanced biosensing and bioanalysis techniquesLanthanide and Transition Metal Complexes

Insight into peptide self-assembly from anisotropic rotational diffusion derived from 13C NMR relaxation

Davy Sinnaeve、Marc‐André Delsuc、José C. Martins 等 4 位作者2012-01-01Chemical Science

The NMR heteronuclear relaxation rate's dependency on the anisotropy of rotational diffusion motions can be exploited to investigate the supramolecular organization that results from reversible peptide self-assembly in solution. The measurement of longitudinal (R1) and transverse (R2) 13C relaxation rates for several…

DNA and Nucleic Acid ChemistrySupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applications

Effect of casting temperature on porous structure of lotus-type porous copper

Xinhua Liu、Xuefeng Li、Yanbin Jiang 等 4 位作者2012-01-01Procedia Engineering

Lotus-type porous copper was fabricated using unidirectional solidification method by only changing casting temperature. Porous structure of the lotus-type porous copper was quantitatively characterized and analyzed. Effect of casting temperature on the porous structure was investigated and its mechanism was discussed…

Cellular and Composite StructuresAluminum Alloys Composites PropertiesNanoporous metals and alloys