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Achiral flexible liquid crystal trimers exhibiting chiral conglomerates

Haruna Sasaki、Yoichi Takanishi、Jun Yamamoto 等 4 位作者2016-01-01Soft Matter

Chiral conglomerates of domains with opposite handedness have attracted much attention from researchers. We prepared a homologous series of achiral liquid crystal trimers in which two phenylpyrimidine units and one biphenyl unit were connected via flexible methylene spacers. We investigated their phase transition beha…

Liquid Crystal Research AdvancementsLipid Membrane Structure and BehaviorMolecular spectroscopy and chirality

Magnetism and magnetoelectricity in the polar oxide α -Cu 2 V 2 O 7

Y.-W. Lee、T.-H. Jang、Sachith Dissanayake 等 5 位作者2016-01-01Europhysics Letters (EPL)

Single crystals of the orthorhombic polar oxide α -Cu 2 V 2 O 7 with space group Fdd 2 are synthesized and their physical properties are measured. Neutron powder diffraction is also performed on a polycrystal sample to extract the magnetic structure. The ground state is shown to be weakly ferromagnetic, that is, colli…

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

DC-bias dependent impedance spectroscopy of BaTiO 3 –Bi(Zn 1/2 Ti 1/2 )O 3 ceramics

Nitish Kumar、Eric A. Patterson、Till Frömling 等 4 位作者2016-01-01Journal of Materials Chemistry C

In p-type BaTiO <sub>3</sub> , a deviation from Ohm's law behavior at low fields was noted with a significant decrease in resistivity values; whereas the response of n-type Bi(Zn <sub>1/2</sub> Ti <sub>1/2</sub> )O <sub>3</sub> -containing ceramics was insensitive to bias.

Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisDielectric properties of ceramics

A 2 SbB 3 O 8 (A = Na, K, Rb) and β-RbSbB 2 O 6 : two types of alkali boroantimonates with 3D anionic architectures composed of SbO 6 octahedra and borate groups

Dong Yan、Chun‐Li Hu、Jiang‐Gao Mao2016-01-01CrystEngComm

Four new alkali metal boroantimonates, namely, A2SbB3O8 (A = Na, K, Rb) and β-RbSbB2O6, have been synthesized by high-temperature solid-state reactions. Isostructural A2SbB3O8 (A = Na, K, Rb) crystallizes in the monoclinic space group P21/c, with structures featuring a novel 3D anionic framework composed of SbO6 octah…

Crystal Structures and PropertiesAdvanced Condensed Matter PhysicsNuclear materials and radiation effects

Synthesis, structural characterisation and proton conduction of two new hydrated phases of barium ferrite BaFeO 2.5−x (OH) 2x

P. Knochel、Philip J. Keenan、Christoph Loho 等 10 位作者2016-01-01Journal of Materials Chemistry A

Materials exhibiting mixed electronic and proton conductivity are of great interest for applications ranging from electrodes for proton conducting ceramic fuel cells to hydrogen separation membranes.

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

Characteristics and Young's Modulus of Collagen Fibrils from Expanded Skin Using Anisotropic Controlled Rate Self-Inflating Tissue Expander

Nur Aini Sabrin Manssor、Zamri Radzi、Noor Azlin Yahya 等 8 位作者2016-01-01Skin Pharmacology and Physiology

Mechanical properties of expanded skin tissue are different from normal skin, which is dependent mainly on the structural and functional integrity of dermal collagen fibrils. In the present study, mechanical properties and surface topography of both expanded and nonexpanded skin collagen fibrils were evaluated. Anisot…

Wound Healing and TreatmentsTextile materials and evaluationsCollagen: Extraction and Characterization

Induced smectic phases of stoichiometric liquid crystal mixtures

Shin-ya Sugisawa、Yuka Tabe2016-01-01Soft Matter

We revealed the detailed structures of induced smectic liquid crystal (LC) phases composed of a binary mixture of charge-transfer (CT) LC substances. Although neither of the constituents had highly ordered smectic phases, the mixture exhibited smectic-E (SmE) or smectic-B (SmB) phases when mixed at ratios of 1 : 1 and…

Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsMolecular spectroscopy and chirality

Stable neutral radicals of planar N 2 O 2 -type dipyrrin platinum complexes: hybrid radicals of the delocalized organic π-orbital and platinum d-orbital

Masaki Yamamura、H. Takizawa、Yuki Gobo 等 4 位作者2016-01-01Dalton Transactions

Neutral radicals of N2O2-dipyrrin platinum complexes were synthesized by the reaction of dipyrrin ligands with PtCl2(cod) and successive one-electron oxidation. The radicals are very stable even under aerobic and ambient conditions. X-ray crystallographic analysis revealed the stacking array of the planar dipyrrin com…

Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials

Autolytic Isolation of Chitin from White Shrimp (Penaues Vannamei) Waste

Achmad Sjaifullah、Agung Budi Santoso2016-01-01Procedia Chemistry

White shrimp waste comprised of shrimp head, tail and shell contains valuable materials such as chitin, protein, enzymes, minerals, natural pigments, etc. Isolation of chitin from white shrimp waste through an autolysis enzymatic deproteination is described in this paper. The deproteination rate was estimated by measu…

Nanocomposite Films for Food PackagingProtein Hydrolysis and Bioactive PeptidesStudies on Chitinases and Chitosanases

Liquid crystal cells based on photovoltaic substrates

L. Lucchetti、K. Kushnir、Annamaria Zaltron 等 4 位作者2016-01-01Journal of the European Optical Society Rapid Publications

Liquid crystal cells with LiNbO3:Fe crystals as substrates, are described. The photovoltaic field generated by the substrates is able to reorient the liquid crystal director thus giving rise to a phase shift on the light propagating through the cell, as in liquid crystal light valves. The process does not require the…

Photonic and Optical DevicesLiquid Crystal Research AdvancementsPhotonic Crystals and Applications

Porous carbon nanoflakes with a high specific surface area derived from a kapok fiber for high-performance electrode materials of supercapacitors

Weibing Xu、Bin Mu、Aiqin Wang2016-01-01RSC Advances

Well-defined porous carbon nanoflakes with a high specific surface area have been successfully prepared <italic>via</italic> pyrolytic carbonization and alkali activation treatment of an easily available kapok fiber.

Advancements in Battery MaterialsElectrocatalysts for Energy ConversionSupercapacitor Materials and Fabrication

Tuning oxygen permeability in azobenzene-containing side-chain liquid crystalline polymers

Syed Imran Hassan、Robinson Anandakathir、Margaret J. Sobkowicz 等 4 位作者2016-01-01Polymer Chemistry

Tuning oxygen permeability in azobenzene-containing side-chain liquid crystalline polymers was achieved by control of their mesomorphoric phases.

Liquid Crystal Research AdvancementsPhotochromic and Fluorescence ChemistryAdvanced Materials and Mechanics

Low operating voltage ambipolar graphene oxide-floating-gate memory devices based on quantum dots

Yongli Che、Yating Zhang、Xiaolong Cao 等 9 位作者2016-01-01Journal of Materials Chemistry C

Solution processed quantum dots (QDs) were employed as semiconductor layers in low operating voltage nonvolatile memory devices where graphene oxide (GO) is embedded as a charge storage element.

Graphene research and applicationsQuantum Dots Synthesis And PropertiesNanowire Synthesis and Applications

In situ characterization of the decomposition behavior of Mg(BH 4 ) 2 by X-ray Raman scattering spectroscopy

Christoph J. Sahle、Simon Kujawski、Arndt Remhof 等 10 位作者2016-01-01Physical Chemistry Chemical Physics

We present an in situ study of the thermal decomposition of Mg(BH4)2 in a hydrogen atmosphere of up to 4 bar and up to 500 °C using X-ray Raman scattering spectroscopy at the boron K-edge and the magnesium L2,3-edges. The combination of the fingerprinting analysis of both edges yields detailed quantitative information…

Hydrogen Storage and MaterialsBoron and Carbon Nanomaterials ResearchSuperconductivity in MgB2 and Alloys

Mechanical and Thermal Properties of Graphene Nanoplates and Functionalized Carbon-Nanotubes Hybrid Epoxy Nanocomposites

Ahmed A. Moosa、Faris Abdul Karim Kubba、Maysam Raad 等 4 位作者2016-01-01American journal of materials science

The effect of dispersion of carbon nanofillers on mechanical properties, wettabiliy and thermal stability of epoxy nanocomposites prepared by direct mixing method were studied. Field Emission Scanning Electron Microscopy (FESEM) was used to study dispersion of carbon nanofiller in epoxy matrix. The tensile properties…

Carbon Nanotubes in CompositesGraphene research and applicationsFiber-reinforced polymer composites