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Fast Synthesis of PbS Nanocrystals in Aqueous Solution with Shape Evolution from Cubic to Octahedral Structures and Their Assembled Structures

Jian‐Kuan Wu、Lian‐Ming Lyu、Ching‐Wen Liao 等 5 位作者2012-09-27Chemistry - A European Journal

In this study, we have developed for the first time a fast and energy-efficient method for the synthesis of PbS nanocrystals with systematic shape evolution from cubic to truncated cubic, cuboctahedral, truncated octahedral, and octahedral structures. The method involves the addition of a small volume of preheated lea…

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

Neuron-Shaped Gold Nanocrystals and Two-Dimensional Dendritic Gold Nanowires Fabricated by Use of a Long-Chain Amidoamine Derivative

Yoshiro Imura、Ayumi Maezawa、Clara Morita 等 4 位作者2012-09-27Langmuir

We report the synthesis of two-dimensional (2D) dendritic Au nanowires (DNWs) with diameters of 100-200 nm in an aqueous solution of long-chain amidoamine derivative (C18AA), which acted as both capping and reducing agent, and the preparation of large 2D DNWs with diameters of 400-700 nm by seeded growth of the origin…

Gold and Silver Nanoparticles Synthesis and ApplicationsNanocluster Synthesis and ApplicationsNanoporous metals and alloys

Analysis of thermoregulation properties of PCM garments on the basis of ergonomic tests

Gra ż yna Bartkowiak、Anna Da ̧browska、Anna Marszałek2012-09-27Textile Research Journal

Work in impermeable protective clothing leads to a significant thermal load on its user. Limited heat and moisture transport, which is an effect of using air- and moisture-impermeable coated fabrics in protective clothing, causes a significant increase of the temperature and relative humidity in the undergarment micro…

Thermoregulation and physiological responsesTextile materials and evaluationsRadiative Heat Transfer Studies

Extraction, structural and physical characterization of type I collagen from the outer skin of Sepiella inermis (Orbigny, 1848)

Vairamani Shanmugam2012-09-27AFRICAN JOURNAL OF BIOTECHNOLOGY

The acid soluble collagen (ASC) and pepsin soluble collagen (PSC) were extracted from the outer skin of Sepiella inermis and further characterized partially. The yield of ASC was low (0.58% on dry weight basis); whereas the yield of PSC was comparatively more (16.23% on dry weight basis). The protein content in ASC an…

Protein Hydrolysis and Bioactive PeptidesSilk-based biomaterials and applicationsCollagen: Extraction and Characterization

The Production of Fibers and Films from Solubilized Hagfish Slime Thread Proteins

Atsuko Negishi、Clare L. Armstrong、Laurent Kreplak 等 7 位作者2012-09-27Biomacromolecules

Hagfish slime threads, which make up the fibrous component of the defensive slime of hagfishes, consist primarily of proteins from the intermediate filament family of proteins and possess impressive mechanical properties that make them attractive biomimetic models. To investigate whether solubilized intermediate filam…

Cellular Mechanics and InteractionsSkin and Cellular Biology ResearchSilk-based biomaterials and applications

Properties of thermoplastic starch and TPS/polycaprolactone blend reinforced with sisal whiskers using extrusion processing

Adriana de Campos、Kelcilene B. R. Teodoro、E. M. Teixeira 等 8 位作者2012-09-27Polymer Engineering and Science

Abstract Sisal whiskers (SW) were prepared by acid hydrolysis for subsequent evaluation as reinforcing material for biodegradable matrices of thermoplastic starch (TPS) and TPS/polycaprolactone (TPS/PCL) blends. The acid hydrolyzed SW had dimensions of 5 ± 2 nm in diameter and 210 ± 60 nm in length and 78% crystallini…

Nanocomposite Films for Food PackagingAdvanced Cellulose Research Studiesbiodegradable polymer synthesis and properties

Terahertz conductivity studies in carbon nanotube networks prepared by the vacuum filtration method

Horacio Lamela、Ehsan Dadrasnia、Dongmok Lee 等 7 位作者2012-09-27Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

The electrical properties of carbon nanostructures have been greatly stimulating to use in the nanotechnology for electronic components. In this paper, we study the AC and DC electrical conductivity responses of multi-walled carbon nanotube films, prepared by the vacuum filtration methods, with noncontact terahertz ti…

Carbon Nanotubes in CompositesPhotonic Crystals and ApplicationsMolecular Junctions and Nanostructures

A Strategy To Functionalize the Carbon Nanotubes and the Nanocomposites Based on Poly(l-lactide)

Yihui Xu、Qifang Li、Da Sun 等 5 位作者2012-09-27Industrial & Engineering Chemistry Research

A strategy to achieve balanced properties using functionalized carbon nanotubes has been investigated, and its nanocomposite exhibited good performance in mechanical and electrical properties. Polybutyl acrylate (PBA) has been utilized to functionalize multiwalled carbon nanotubes (MWNTs) by in situ atom transfer radi…

Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesTribology and Wear Analysis

Ground state calculation of the electronic structure and magnetic properties of Co2VAl: a local spin density approximation with exchange correlation potential study

P. Raics、Sandeep Sandeep、A. Shankar 等 5 位作者2012-09-27Physica Scripta

We performed first-principles calculations of Co2VAl to determine its electronic and magnetic properties. For this, the density functional-based full potential linearized augmented plane wave method is used. Firstly, volume optimization is done based on generalized gradient approximation to determine the equilibrium l…

Magnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter PhysicsHeusler alloys: electronic and magnetic properties

A Chiral Nanosheet Connected by Amide Hydrogen Bonds

Xiaodong Hou、Matthew Schober、Qianli Chu2012-09-27Crystal Growth & Design

A chiral organic nanosheet spontaneously assembled under mild conditions from N, N ′, N ″-tris( n -octyl)benzene-1,3,5-tricarboxamide, which is a C 3 -symmetric supramolecular atropisomer. Similar to the β-pleated sheets of polypeptides, the hydrogen bonded backbone of the chiral sheet does not involve side chains. Th…

Metal-Organic Frameworks: Synthesis and ApplicationsSupramolecular Chemistry and ComplexesSupramolecular Self-Assembly in Materials

Preparation and properties of carbon nanotube composites with nitrile‐ and styrene‐butadiene rubbers

Claudia Kummerlöwe、Norbert Vennemann、Ekaterina Yankova 等 8 位作者2012-09-27Polymer Engineering and Science

Abstract The work deals with the preparation and characterization of elastomer/multiwalled carbon nanotube (CNT) composites. Nitrile‐butadiene‐rubber (NBR), emulsion styrene‐butadiene‐rubber (E‐SBR) with random segment distribution, and solution styrene‐butadiene‐rubber (S‐SBR) having a blocked styrene content were us…

Carbon Nanotubes in CompositesPolymer Nanocomposites and PropertiesConducting polymers and applications

Strategies for the development of gadolinium‐based ‘q’‐activatable MRI contrast agents

Chuqiao Tu、Angelique Y. Louie2012-09-27NMR in Biomedicine

The emergence and rapid development of activatable contrast agents (CAs), whose relaxivity changes in response to the variation of a specific marker in the surrounding physiological microenvironment, have expanded the scope of MRI beyond anatomical and functional imaging to also convey information at the cellular and…

Supramolecular Chemistry and ComplexesMagnetism in coordination complexesLanthanide and Transition Metal Complexes

A π‐Stacked Porphyrin–Fullerene Electron Donor–Acceptor Conjugate That Features a Surprising Frozen Geometry

A Ciammaichella、Pavlo O. Dral、Timothy Clark 等 6 位作者2012-09-27Chemistry - A European Journal

A "frozen" electron donor-acceptor array that bears porphyrin and fullerene units covalently linked through the ortho position of a phenyl ring and the nitrogen of a pyrrolidine ring, respectively, is reported. Electrochemical and photophysical features suggest that the chosen linkage supports both through-space and t…

Porphyrin and Phthalocyanine ChemistryFullerene Chemistry and ApplicationsPhotochemistry and Electron Transfer Studies

Shape memory and breathable waterproof properties of polyurethane nanowebs

Hye Ree Han、Seung Eun Chung、Chung Hee Park2012-09-27Textile Research Journal

An intelligent textile with optimal environmental responses was developed from electrospun nanowebs with controllable pore structures via the spinning conditions. The use of shape memory polyurethane allowed the material’s shape to be retained and recovered through heating. The thickness of the electrospun nanoweb was…

Advanced Sensor and Energy Harvesting MaterialsElectrospun Nanofibers in Biomedical ApplicationsPolymer composites and self-healing

Controlling the morphology of gold nanoparticles synthesized photochemically in a polymer matrix through photonic parameters

Lavinia Balan、Violeta Melinte、Tinca Buruianǎ 等 5 位作者2012-09-27Nanotechnology

A facile method for the preparation of gold nanoparticles (AuNPs) with various morphologies, including triangles, cubes and nanospheres into a urethane methacrylate polymer matrix, has been developed. The hybrid nanocomposites have been obtained by photoreduction of a gold precursor in the presence of a 30 wt% urethan…

Nanoparticles: synthesis and applicationsGold and Silver Nanoparticles Synthesis and Applications

On the energy flux through a uniaxial chiral metamaterial made circular waveguide under PMC boundary

Muhammad Abuzar Baqir、P. K. Choudhury2012-09-27Journal of Electromagnetic Waves and Applications

Propagation of electromagnetic waves through a circular waveguide consisting of uniaxial anisotropic chiral metamaterial is studied. The outer surface of the guide is assumed to be coated with a perfect magnetic conductor material. The characteristic eigenvalue equation corresponding to the guided modes is deduced fol…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsElectromagnetic Scattering and Analysis

Mechanical milling assisted synthesis of Ba–Mn co-substituted BiFeO3 ceramics and their properties

K. Saravana Kumar、C. Venkateswaran、Divya Kannan 等 5 位作者2012-09-27Journal of Physics D Applied Physics

Abstract Samples of composition Bi 1− x Ba x Fe 1− x Mn x O 3 ( x = 0, 0.1, 0.2) were synthesized by initial mixing of precursors by high-energy ball milling and subsequent sintering of the milled powders. The co-substitution of Ba–Mn controls the formation of impurity phases, as evident from x-ray diffraction analysi…

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

Integrating stimulus responsive materials and microfluidics: The key to next-generation chemical sensors

Bartosz Ziółkowski、Monika Czugala、Dermot Diamond2012-09-27Journal of Intelligent Material Systems and Structures

New generations of chemical sensors require both innovative (evolutionary) engineering concepts and (revolutionary) breakthroughs in the fundamental materials chemistry, such as the emergence of new types of stimuli responsive materials. In recent years, intensive research in those fields has brought interesting new c…

Porphyrin and Phthalocyanine ChemistryMicro and Nano RoboticsPhotochromic and Fluorescence Chemistry

Environmental Influence on the Single-Molecule Magnet Behavior of [MnIII6CrIII]3+: Molecular Symmetry versus Solid-State Effects

Veronika Hoeke、M. Heidemeier、Erich Krickemeyer 等 8 位作者2012-09-27Inorganic Chemistry

The structural, spectroscopic, and magnetic properties of a series of [Mn(III)(6)Cr(III)](3+) (= [{(talen(t-Bu(2)))Mn(III)(3)}(2){Cr(III)(CN)(6)}](3+)) compounds have been investigated by single-crystal X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and electronic absorption spectroscopy, elemental analys…

Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes