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Optical properties of single silver triangular nanoprism

François Kossi Guédjé、M. Giloan、Monica Potara 等 5 位作者2012-10-22Physica Scripta

The ability to provide large electric field enhancements renders triangular nanoprisms and branched nanoparticles very attractive for applications in surface-enhanced Raman spectroscopy (SERS). Theoretical studies on the optical properties of triangular prisms in a water solution are presented in this paper to determi…

Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchProtein Interaction Studies and Fluorescence Analysis

Formation of SERS active nanoparticle assemblies via specific carbohydrate–protein interactions

Derek Craig、Jonathan Simpson、Karen Faulds 等 4 位作者2012-10-22Chemical Communications

An on/off SERS aggregation system has been designed to investigate carbohydrate-lectin interactions. Detection of the lectin ConA was achieved at pico molar levels. Discrimination was also demonstrated between two different carbohydrate moieties demonstrating the specific interaction between the carbohydrate and speci…

Nanoparticle-Based Drug DeliveryGold and Silver Nanoparticles Synthesis and ApplicationsSupramolecular Self-Assembly in Materials

Preparation and electrochemical properties of nanoporous transparent antimony-doped tin oxide (ATO) coatings

Sudhanshu Sharma、Alex M. Volosin、Dominik Schmitt 等 4 位作者2012-10-22Journal of Materials Chemistry A

Nanoporous antimony-doped tin oxide (ATO) coatings with high surface area, optical transparency and electron transfer properties have been prepared using an interpenetrating inorganic–organic hybrid sol–gel approach. UV-Vis and X-ray photoelectron spectroscopic studies were carried out on the prepared materials in add…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications

Photodriven Electron Transport within the Columnar Perylenediimide Nanostructures Self-Assembled with Sulfonated Porphyrins in Water

Mustafa Supur、Shunichi Fukuzumi2012-10-22The Journal of Physical Chemistry C

Columnar stacks of N, N ′-di(2-(trimethylammoniumiodide)ethylene) perylenediimide (TAIPDI) n can host meso -tetrakis(4-sulfonatophenyl)porphyrin zinc tetrapotassium salt (ZnTPPSK 4 ) molecules at different ratios through the ionic and π–π interactions prompted by an aqueous environment. Photoexcitation of this host–gu…

Organic Electronics and PhotovoltaicsPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials

Electronic states and curved surface effect of silicon quantum dots

Wei-Qi Huang、Zhong-Mei Huang、Han-Qiong Cheng 等 7 位作者2012-10-22Applied Physics Letters

The calculation results show that the bonding energy and electronic states of silicon quantum dots (Si QDs) are different on various curved surfaces (CS), for example, a Si-O-Si bridge bond on curved surface provides the localized levels in band gap and its bonding energy is shallower than that on facet. Curved surfac…

Semiconductor materials and devicesSilicon Nanostructures and PhotoluminescenceNanowire Synthesis and Applications

Effect of EPDM as a compatibilizer on mechanical properties and morphology of PP/LDPE blends

Nina Vranješ Penava、Vesna Rek、Ivona Fiamengo Houra2012-10-22Journal of Elastomers & Plastics

Blends of polypropylene (PP) and low-density polyethylene (LDPE) with and without ethylene-propylene-diene (EPDM) terpolymer as a compatibilizer were studied. Mechanical properties were chosen to estimate the compatibilization efficiency of EPDM. The interactions between phases were valued through glass transition shi…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesRecycling and Waste Management Techniques

Antibacterial behavior of diamond nanoparticles against Escherichia coli

Jana Beranová、Gabriela Seydlová、Halyna Kozak 等 6 位作者2012-10-22physica status solidi (b)

Abstract In this study, we investigated the potential antibacterial properties of nanocrystalline diamond. In particular, we tested the effect of diamond nanoparticles (DNPs) on growth of the model gram‐negative bacterium Escherichia coli on solid, nutrient‐rich growth medium. We found that the presence of DNPs on aga…

Nanoparticles: synthesis and applicationsDiamond and Carbon-based Materials ResearchGraphene and Nanomaterials Applications

Emergent phenomena at multiferroic heterointerfaces

Pu Yu、Ying‐Hao Chu、R. Ramesh2012-10-22Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences

The coupling and reconstruction of electronic degrees of freedom (such as charge, spin and orbital) at a heterointerface can lead to unexpected and exotic states of matter. In this study, using model systems consisting of multiferroic BiFeO(3) and ferromagnetic La(0.7)Sr(0.3)MnO(3), we review the current understanding…

Magnetic and transport properties of perovskites and related materialsMultiferroics and related materialsAdvanced Condensed Matter Physics

Chemical modifications of natural oils and examples of their usage for polyurethane synthesis

Janusz Datta、Ewa Głowińska2012-10-22Journal of Elastomers & Plastics

Natural oils have been used in the production of plastics for a long time. However, the number of studies dedicated to polyurethane research has shown an increase only recently. Usually, petrochemical components are used in polyurethane synthesis. Nowadays, there have been attempts made to replace polyols in polyureth…

Polymer composites and self-healingEpoxy Resin Curing ProcessesSynthetic Organic Chemistry Methods

Analytical Gradients for Density Functional Calculations with Approximate Spin Projection

Tôru Saitô、Walter Thiel2012-10-22The Journal of Physical Chemistry A

We have derived and implemented analytical gradients for broken-symmetry unrestricted density functional calculations (BS-UDFT) with removal of spin contamination by Yamaguchi's approximate spin projection method. Geometry optimizations with these analytical gradients (AGAP-opt) yield results consistent with those obt…

Advanced Chemical Physics StudiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms

Preparation and Characterization of Magnetic Chitosan Microcapsules

Xiaopeng Xiong、Yong Wang、Weiwei Zou 等 5 位作者2012-10-22Journal of Chemistry

By dispersing aqueous precipitant in liquid paraffin to prepare a W/O emulsion then adding chitosan (CS) solution, CS microcapsules have been successfully prepared. It is a facile way to prepare polymer microcapsules by using aqueous precipitant or nonsolvent as template, which avoids the removal of template and would…

Advanced Polymer Synthesis and CharacterizationPolymer Surface Interaction StudiesDendrimers and Hyperbranched Polymers

Occurrence of a high-temperature superconducting phase in (CaCuO2)n/(SrTiO3)msuperlattices

D. Di Castro、M. Salvato、A. Tebano 等 17 位作者2012-10-22Physical Review B

We report the occurrence of superconductivity, with maximum T${}_{c}=40$ K, in superlattices (SLs) based on two insulating oxides, namely CaCuO${}_{2}$ and SrTiO${}_{3}$. In these (CaCuO${}_{2}$)${}_{n}$/(SrTiO${}_{3}$)${}_{m}$ SLs, the CuO${}_{2}$ planes belong only to CaCuO${}_{2}$ block, which is an antiferromagnet…

Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsElectronic and Structural Properties of Oxides

A revision of the genus Cyclophora and description of Astrosyne gen. nov. (Bacillariophyta), two genera with the pyrenoids contained within pseudosepta

Matt P. Ashworth、Elizabeth C. Ruck、Christopher S. Lobban 等 5 位作者2012-10-22Phycologia

Ashworth M.P., Ruck E.C., Lobban C.S., Romanovicz D.K., and Theriot E.C. 2012. A revision of the genus Cyclophora and description of Astrosyne gen. nov. (Bacillariophyta), two genera with the pyrenoids contained within pseudosepta. Phycologia 51: 684–699. DOI: 10.2216/12-004.1The araphid pennate diatom genus Cyclophor…

Genomics and Phylogenetic StudiesProtist diversity and phylogenyDiatoms and Algae Research

Physical Foundations of Continuum Mechanics

A. Ian Murdoch2012-10-22Cambridge University Press eBooks

Ian Murdoch's Physical Foundations of Continuum Mechanics will interest engineers, mathematicians, and physicists who study the macroscopic behaviour of solids and fluids or engage in molecular dynamical simulations. In contrast to standard works on the subject, Murdoch's book examines physical assumptions implicit in…

Material Dynamics and PropertiesHydraulic Fracturing and Reservoir AnalysisRheology and Fluid Dynamics Studies

Sulfonated Poly(ether ether ketone)/Polypyrrole Core–Shell Nanofibers: A Novel Polymeric Adsorbent/Conducting Polymer Nanostructures for Ultrasensitive Gas Sensors

Wei Wang、Zhenyu Li、Tingting Jiang 等 7 位作者2012-10-22ACS Applied Materials & Interfaces

Conducting polymers-based gas sensors have attracted increasing research attention these years. The introduction of inorganic sensitizers (noble metals or inorganic semiconductors) within the conducting polymers-based gas sensors has been regarded as the generally effective route for further enhanced sensors. Here we…

Gas Sensing Nanomaterials and SensorsConducting polymers and applicationsAnalytical Chemistry and Sensors

pH-Controllable Water Permeation through a Nanostructured Copper Mesh Film

Zhongjun Cheng、Ming Du、Kewei Fu 等 5 位作者2012-10-22ACS Applied Materials & Interfaces

Water permeation is an important issue in both fundamental research and industrial applications. In this work, we report a novel strategy to realize the controllable water permeation on the mixed thiol (containing both alkyl and carboxylic acid groups) modified nanostructured copper mesh films. For acidic and neutral…

Surface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting MaterialsSolar-Powered Water Purification Methods

Single‐walled carbon nanotubes filled with nickel halogenides: Atomic structure and doping effect

Marianna V. Kharlamova、Lada V. Yashina、А. А. Елисеев 等 9 位作者2012-10-22physica status solidi (b)

Abstract NiX 2 @SWCNT (X = Cl, Br) nanostructures were prepared by capillary filling of single‐walled carbon nanotube channels with nickel halogenide melts with slow cooling down to room temperature for better crystallization. The HRTEM data indicated formation of well‐ordered 1D NiBr 2 crystals, with the experimental…

Carbon Nanotubes in CompositesGraphene research and applicationsTransition Metal Oxide Nanomaterials

Functional recovery guided by an electrospun silk fibroin conduit after sciatic nerve injury in rats

Sook Young Park、Chang‐Seok Ki、Young Hwan Park 等 7 位作者2012-10-22Journal of Tissue Engineering and Regenerative Medicine

The aim of this study was to evaluate the regenerative capacity of a newly developed nerve guidance conduit using electrospun silk fibroin (SFNC) implanted in a 10-mm defect of the sciatic nerve in rats. After evaluating the physical properties and cytocompatibility of SFNC in vitro, rats were randomly allocated into…

Nerve injury and regenerationElectrospun Nanofibers in Biomedical ApplicationsSilk-based biomaterials and applications

Synthesis of isocyanate microcapsules and micromechanical behavior improvement of microcapsule shells by oxygen plasma treated carbon nanotubes

Wei Wang、Likun Xu、Feng Liu 等 5 位作者2012-10-22Journal of Materials Chemistry A

In this study, we present the novel isocyanate microcapsule preparation of poly(urea-formaldehyde) (PUF) embedded with oxygen plasma treated carbon nanotubes (OPCNTs) to improve the micromechanical behavior of microcapsule shells significantly. Isophorone diisocyanate was encapsulated by PUF through in situ polymeriza…

Electrospun Nanofibers in Biomedical ApplicationsPolymer composites and self-healingSilicone and Siloxane Chemistry

Experimental and molecular modeling investigation of (E)-N-{2-[(2-hydroxybenzylidene)amino]phenyl}benzenesulfonamide

Namık Özdemir、Serkan Dayan、Osman Dayan 等 5 位作者2012-10-22Molecular Physics

The Schiff base compound (E)-N-{2-[(2-hydroxybenzylidene)amino]phenyl}benzenesulfonamide has been synthesized and characterized by IR, NMR and Uv-vis spectroscopies, and single-crystal X-ray diffraction technique. In addition, quantum chemical calculations employing density functional theory (DFT) method with the 6–31…

Metal complexes synthesis and propertiesNonlinear Optical Materials ResearchFree Radicals and Antioxidants