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Clarification of Tritium Behavior in Pb–Li Blanket System

Satoshi Fukada、Takayuki Terai、Satoshi Konishi 等 10 位作者2012-12-06MATERIALS TRANSACTIONS

In order to clarify the tritium behavior in Pb–Li blanket system, the solubility of hydrogen isotopes in the Pb–Li eutectic alloy was experimentally investigated. The effects of (i) Li preferential evaporation from Pb–Li, (ii) thermal convection in a quartz-glass reaction tube and (iii) difference in crucible material…

Fusion materials and technologiesHydrogen Storage and MaterialsNuclear Materials and Properties

Vibrational Spectroscopy of Natural Cave Mineral Monetite CaHPO4and the Synthetic Analog

Ray L. Frost、Yunfei Xi、Graeme J. Millar 等 5 位作者2012-12-06Spectroscopy Letters

Monetite is a phosphate mineral formed by the reaction of the chemicals in bat guano with calcite substrates and is commonly found in caves. The analog of the mineral monetite CaHPO4 has been synthesized and the Raman and infrared spectra of the natural monetite originating from the Murra-el-elevyn Cave, Eucla, Wester…

Geological and Geochemical AnalysisClay minerals and soil interactionsMineralogy and Gemology Studies

Polymorphism in Sheared Isotactic Polypropylene Containing Nucleant Particles

Andrew W. Phillips、Amita Bhatia、Peng Wei Zhu 等 4 位作者2012-12-06Macromolecular Materials and Engineering

Abstract This study explored the combined influence of shear flow and nucleating agents on isotactic polypropylene (iPP) crystallisation. The study showed that oriented α‐iPP crystals were not necessary to form β‐iPP crystals, contrary to the accepted view that the surface of oriented α‐iPP crystals provides nucleatio…

Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties

Does adsorption in a single nanogroove exhibit hysteresis?

Alexandr Malijevský2012-12-06The Journal of Chemical Physics

A simple fluid, in a microscopic capillary capped at one end, is studied by means of fundamental measure density functional. The model represents a single, infinitely long nanogroove with long-range wall-fluid attractive (dispersion) forces. It is shown that the presence or absence of hysteresis in adsorption isotherm…

Phase Equilibria and ThermodynamicsNanopore and Nanochannel Transport StudiesPickering emulsions and particle stabilization

Removal of Sulfamethazine by Hypercrosslinked Adsorbents in Aquatic Systems

Maria E. Grimmett2012-12-06Journal of Environmental Quality

Four hundred tons of sulfamethazine are fed to livestock annually in North America to prevent disease and promote growth, but most of the drug is excreted unmetabolized into the environment. Because of slow degradation and high mobility, sulfamethazine contaminates groundwater supplies and causes aquatic ecosystem dam…

Advanced Photocatalysis TechniquesPharmaceutical and Antibiotic Environmental ImpactsCovalent Organic Framework Applications

Characteristics of ZnO : As/GaN heterojunction diodes obtained by PA-MBE

E. Przeździecka、A. Wierzbicka、A. Reszka 等 13 位作者2012-12-06Journal of Physics D Applied Physics

Abstract We report on the characterization of wide-band-gap heterojunction diodes based on the p-ZnO/n-GaN material system. The layer structure consists of 11 µ m GaN on sapphire substrates and As-doped ZnO film of thickness 0.4 µ m obtained by plasma-assisted molecular beam epitaxy (PA-MBE). The quality of the hetero…

ZnO doping and propertiesGaN-based semiconductor devices and materialsGa2O3 and related materials

Diels–Alder thermoresponsive networks based on high maleimide-functionalized urethane prepolymers

Nidhal Okhay、Nathalie Mignard、Corinne Jégat 等 4 位作者2012-12-06Designed Monomers & Polymers

Thermoreversible polyurethane networks were successfully prepared by Diels–Alder reaction using a highly maleimide-functionalized urethane prepolymer with an epoxy-based furan coupling agent or a furan-functionalized polyurethane. Highly functional maleimide prepolymers with various functionalities were synthesized by…

Polymer composites and self-healingSynthesis and properties of polymersPolydiacetylene-based materials and applications

Synthesis of CdS nanoparticles in switchable surfactant reverse micelles

Jianzhong Jiang、Yan-E He、Leping Wan 等 6 位作者2012-12-06Chemical Communications

A facile method for synthesis of CdS nanoparticles has been described. Monodisperse face-centered cubic CdS NPs could be synthesized in switchable surfactant reverse micelles. The micelles could be broken easily and CdS NPs without a coating of surfactants could be obtained by bubbling N(2) at 65 °C.

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

A new inorganic–organic hybrid In2Se3(en) as hollow nanospheres: hydrothermal synthesis and near-infrared photoluminescence properties

Pei Liu、Shuai Yu、Weiqiang Fan 等 4 位作者2012-12-06Dalton Transactions

A new inorganic-organic hybrid In(2)Se(3)(en) was synthesized as hollow nanospheres via a facile and controllable hydrothermal method in a system containing ethylenediamine (en) and hydrazine hydrate. These as-obtained hybrid hollow nanospheres with an average diameter of 200 nm were assembled by irregularly small-siz…

2D Materials and ApplicationsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Templating Gold Surfaces with Function: A Self-Assembled Dendritic Monolayer Methodology Based on Monodisperse Polyester Scaffolds

Kim Öberg、Jarmo Ropponen、Jonathan Kelly 等 6 位作者2012-12-06Langmuir

The antibiotic resistance developed among several pathogenic bacterial strains has spurred interest in understanding bacterial adhesion down to a molecular level. Consequently, analytical methods that rely on bioactive and multivalent sensor surfaces are sought to detect and suppress infections. To deliver functional…

Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesDendrimers and Hyperbranched Polymers

Structural and Photophysical Studies on Geometric (Er2Yb2/Yb2Er2) and Configurational (EuTb3/Eu3Tb) Isomers of Heterotetranuclear Lanthanide(III) Complexes

Hai‐Bing Xu、Jianguo Deng、Li-Yi Zhang 等 4 位作者2012-12-06Crystal Growth & Design

Heterotetranuclear geometrical (Er 2 Yb 2 /Yb 2 Er 2 ) and configuational (EuTb 3 /Eu 3 Tb) isomeric lanthanide(III) complexes have been synthesized and characterized by spectroscopy as well as X-ray crystallography. The geometric Er 2 Yb 2 /Yb 2 Er 2 isomers exhibit dual emissions from both erbium(III) and ytterbium(…

Luminescence Properties of Advanced MaterialsMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Bone regeneration by polyhedral microcrystals from silkworm virus

Goichi Matsumoto、Takayo Ueda、Junko Shimoyama 等 15 位作者2012-12-06Scientific Reports

Bombyx mori cypovirus is a major pathogen which causes significant losses in silkworm cocoon harvests because the virus particles are embedded in micrometer-sized protein crystals called polyhedra and can remain infectious in harsh environmental conditions for years. But the remarkable stability of polyhedra can be ap…

Knee injuries and reconstruction techniquesViral Infectious Diseases and Gene Expression in InsectsSilk-based biomaterials and applications

Foams Stabilized by Multilamellar Polyglycerol Ester Self-Assemblies

Corina Curschellas、Joachim Kohlbrecher、Thomas Geue 等 8 位作者2012-12-06Langmuir

The importance of surfactant self-assemblies in foam stabilization is well-known. The aim of the current study was to investigate the self-assemblies of the nonionic surfactant polyglycerol ester (PGE) in bulk solutions, at the interface and within foams, using a combined approach of small-angle neutron scattering, ne…

Advanced Polymer Synthesis and CharacterizationPolymer composites and self-healingPickering emulsions and particle stabilization

Thousand‐fold Enhancement of Single‐Molecule Fluorescence Near a Single Gold Nanorod

Haifeng Yuan、Saumyakanti Khatua、Peter Zijlstra 等 5 位作者2012-12-06Angewandte Chemie

Einzelmoleküle: Über die durch synthetisierte Goldnanostäbe bis zu 1100-fach verstärkte Fluoreszenz von Einzelmolekülen wird berichtet (siehe Bild). Die hohe Verstärkung wird durch die Auswahl des Farbstoffs erreicht, dessen Adsorption und Emission in der Nähe der Oberflächenplasmonenresonanzen der Goldnanostäbe liege…

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

Encapsulation of Living E. coli Cells in Hollow Polymer Microspheres of Highly Defined Size

Jennifer Flemke、Matthias Maywald、Volker Sieber2012-12-06Biomacromolecules

Here, we report the preparation and characterization of hollow polymer microspheres based on the preprecipitation of porous calcium carbonate cores with an average size of 5 μm and their use for encapsulation of living microorganisms. The microspheres filled with individual living E. coli cells were prepared by layer-…

biodegradable polymer synthesis and propertiesPolymer Surface Interaction StudiesAdvanced Drug Delivery Systems

Strain Modulation of Defect Structure in Gadolinia-Doped Ceria

Bu Wang、Alastair N. Cormack2012-12-06The Journal of Physical Chemistry C

The relationship between the strain and defect structure in gadolinia-doped ceria has been studied with atomistic simulations. It was found that the next nearest neighbor type associations are preferred under zero or tensile applied strains, but the nearest neighbor type defect associations became favorable under comp…

Advancements in Solid Oxide Fuel CellsNuclear materials and radiation effectsElectronic and Structural Properties of Oxides

Synthesis of Functionalized, Sterically Congested Calix[4]phyrin Macrocycles Using Donor–Acceptor‐Substituted Cyclopropanes – First Example of a Mono‐meso‐spirolactone Incorporated into a Calix[4]phyrin

M. Hassan Beyzavi、Dieter Lentz、Hans‐Ulrich Reißig 等 4 位作者2012-12-06European Journal of Organic Chemistry

Abstract Calix[4]phyrins are an important class of hybrid macrocyclic systems at the interface between porphyrins and calixpyrroles (porphyrinogens). A new stepwise synthesis of oxidation‐resistant meso ‐hydrogenated calix[4]phyrins is reported, which allows variable substitution in the residues of their sp 2 ‐ meso ‐…

Porphyrin and Phthalocyanine ChemistryCyclopropane Reaction MechanismsMetal-Catalyzed Oxygenation Mechanisms

LTE plasma reactors for materials conversion

Zbigniew Kołaciński、Łukasz Szymański、Grzegorz Raniszewski2012-12-06The European Physical Journal Applied Physics

Plasma aided materials conversion is the use of charged particles for producing new materials with unusual and superior properties or to convert unwanted materials such as waste into environmentally friendly products. The near LTE plasma (in atmospheric or reduced pressure) is a nice tool for engineering of materials…

Graphene research and applicationsRecycling and Waste Management TechniquesNanotechnology research and applications

Determination and Correlation of Solubility Data and Dissolution Thermodynamic Data of l-Lactide in Different Pure Solvents

Zhen Chen、Chuang Xie、Xu Zhao 等 6 位作者2012-12-06Journal of Chemical & Engineering Data

The solubility of l -lactide in pure ethanol, ethyl acetate, acetone, isopropanol, methanol, and methylbenzene from (278.15 to 338.15) K was determined by dynamic method with a laser monitoring technique. It was found that l -lactide is sparingly soluble in ethanol, isopropanol, methanol, and methylbenzene while it ha…

Phase Equilibria and ThermodynamicsCrystallization and Solubility StudiesChemical and Physical Properties in Aqueous Solutions

Enhanced Up‐Conversion Luminescence in Er 3+ ‐Doped 25 GeS 2 ·35 Ga 2 S 3 ·40 CsCl Chalcogenide Glass–Ceramics

Changgui Lin、Laurent Calvez、Zhuobin Li 等 9 位作者2012-12-06Journal of the American Ceramic Society

Enhanced luminescence in rare‐earth‐doped chalcogenide glass–ceramics is of great interest for the potential integrated optoelectronic devices. However, fundamental mechanism on the enhancement of luminescence upon crystallization remains largely unknown. We report the fabrication and characterization of wide transmis…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsPhase-change materials and chalcogenides