Materials Literature

文献浏览

按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。

清除
第 156361 / 241880 页 · 当前展示 3,127,201–3,127,220 / 4,837,592 条匹配结果 · 摘要仅作预览

Tuning the morphology of self-assisted GaP nanowires

Egor D. Leshchenko、P Kuyanov、Ray LaPierre 等 4 位作者2018-03-06Nanotechnology

Patterned arrays of self-assisted GaP nanowires (NWs) were grown on a Si substrate by gas source molecular beam epitaxy using various V/III flux ratios from 1-6, and various pitches from 360-1000 nm. As the V/III flux ratio was increased from 1-6, the NWs showed a change in morphology from outward tapering to straight…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsNanowire Synthesis and Applications

Structural model of human dUTPase in complex with a novel proteinaceous inhibitor

Kinga Nyíri、Haydyn D. T. Mertens、Borbála Tihanyi 等 15 位作者2018-03-06Scientific Reports

Abstract Human deoxyuridine 5′-triphosphate nucleotidohydrolase (dUTPase), essential for DNA integrity, acts as a survival factor for tumor cells and is a target for cancer chemotherapy. Here we report that the Staphylococcal repressor protein StlSaPIBov1(Stl) forms strong complex with human dUTPase. Functional analys…

DNA Repair MechanismsEnzyme Structure and FunctionBiochemical and Molecular Research

Newly synthesized Cu(II) pyrazino[2,3‐f][1,10]phenanthroline complexes as potential anticancer candidates

Duygu İnci、Rahmiye Aydın、Huzeyfe Huriyet 等 5 位作者2018-03-06Applied Organometallic Chemistry

New binary and ternary copper(II) complexes, [Cu(py‐phen)2(NO3)]NO3(1), [Cu2(py‐phen)2(gly)2(NO3)2(H2O)2]⋅3H2O (2) and [Cu2(py‐phen)2(tyr)2(H2O)2](NO3)2⋅3H2O (3) (py‐phen: pyrazino[2,3‐f][1,10]phenanthroline; gly: glycine; tyr: tyrosine), have been synthesized and characterized using CHN analysis, electrospray ionizat…

Metal complexes synthesis and propertiesLanthanide and Transition Metal ComplexesProtein Interaction Studies and Fluorescence Analysis

Spin-transfer torque generated in graphene based topological insulator heterostructures

Qingtian Zhang、K. Chan、Jingbo Li2018-03-06Scientific Reports

We studied the spin-transfer torque (STT) in graphene based normal-metal/topological-insulator/ferromagnet heterostructures (N/TI/F), which is induced by the helical spin-polarized current in the quantum spin Hall insulator. We found that the STT is comparable in magnitude to the STT in ferromagnetic-normal- ferromagn…

Graphene research and applicationsQuantum and electron transport phenomenaTopological Materials and Phenomena

Renewable Starch Carriers with Switchable Adsorption Properties

Abdalla H. Karoyo、Leila Dehabadi、Lee D. Wilson2018-03-06ACS Sustainable Chemistry & Engineering

This Research Article describes a systematic study on the structure and sorption properties of Carnation-based starch-particles (SPs) by various techniques. Structural characterization of the SPs utilized spectroscopy ( 1 H NMR and FT-IR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), an…

Adsorption and biosorption for pollutant removalFood composition and propertiesPickering emulsions and particle stabilization

BORIDE LAYER GROWTH KINETICS OF AISI H13 STEEL BORIDED WITH NANO-SIZED POWDERS

Mustafa Serdar Karakaş、Ali Günen、Erdoğan Kanca 等 4 位作者2018-03-06Archives of Metallurgy and Materials

H13 STEEL BORIDED WITH NANO-SIZED POWDERSGrowth kinetics of boride layers in AISI H13 steel was investigated using the pack boriding method at temperatures of 1073, 1173 and 1273 K (800°C, 900°C and 1000°C) for periods of 2, 4 and 6 h with nano-sized boron (NB) and micron-sized Ekabor II powders as boriding agents.The…

Metal and Thin Film MechanicsDiamond and Carbon-based Materials ResearchAdvanced materials and composites

pH-Dependent Conformations for Hyperbranched Poly(ethylenimine) from All-Atom Molecular Dynamics

In Kim、Tod A. Pascal、Seong‐Jik Park 等 6 位作者2018-03-06Macromolecules

Hyperbranched poly(ethylene imine) (PEI) with its high amino content is a versatile functional polymer that is widely used as a gene delivery vector in biological applications and as a ligand and precursor for ion exchange resins and membranes in water purification and metal recovery. We report here the first fully at…

Fuel Cells and Related MaterialsRNA Interference and Gene DeliveryDendrimers and Hyperbranched Polymers

MiR34 inhibition induces human heart progenitor proliferation

Gioacchin Iannolo、Maria Rita Sciuto、Giuseppe Maria Raffa 等 5 位作者2018-03-06Cell Death and Disease

MiR34 involvement in myocardial injury repair and ageing has been well documented in mouse model. Our aim was to establish whether the inhibition of miR34 expression through locked nucleic acid (LNA) could be used as a pharmacological intervention to enhance human heart repair. Cardiac progenitor cells were obtained b…

MicroRNA in disease regulationElectrospun Nanofibers in Biomedical ApplicationsTissue Engineering and Regenerative Medicine

Gracefully degrading consensus and k -set agreement in directed dynamic networks

Martin Biely、Peter Robinson、Ulrich Schmid 等 5 位作者2018-03-06Theoretical Computer Science

We study distributed agreement in synchronous directed dynamic networks, where an omniscient message adversary controls the presence/absence of communication links. We prove that consensus is impossible under a message adversary that guarantees weak connectivity only, and introduce eventually vertex-stable source comp…

Distributed systems and fault toleranceLanthanide and Transition Metal ComplexesAge of Information Optimization

Influence of Water and Temperature on Ionomer in Catalytic Layers and Membranes of Fuel Cells and Electrolyzers Evaluated by AFM

Tobias Morawietz、Michael Handl、C. Oldani 等 5 位作者2018-03-06Fuel Cells

Abstract The major difference for the durability of the materials in PEM fuel cells and PEM electrolyzers is the exposure to humidified gases and to liquid water, respectively. Aquivion and Nafion ionomer was investigated at surfaces of membranes and cross‐sections of electrodes by material‐sensitive atomic force micr…

Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsConducting polymers and applications

Ubiquitous Borane Fuel Electrooxidation on Pd/C and Pt/C Electrocatalysts: Toward Promising Direct Hydrazine–Borane Fuel Cells

Anicet Zadick、Jean‐Fabien Petit、Vincent Martin 等 7 位作者2018-03-06ACS Catalysis

Carbon-supported platinum and palladium nanoparticles were studied toward the oxidation of several boranes (namely ammonia–borane (AB), dimethylamine–borane (DMAB), hydrazine–borane (HB), and hydrazine–bis-borane (HBB)); only palladium is capable to oxidize directly and efficiently these fuels, as platinum first decom…

Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsHydrogen Storage and Materials

Controlling Molecular Conformation for Highly Efficient and Stable Deep-Blue Copolymer Light-Emitting Diodes

Iain Hamilton、Nathan Chander、Nathan J. Cheetham 等 10 位作者2018-03-06ACS Applied Materials & Interfaces

High Resolution Image Download MS PowerPoint Slide We report a novel approach to achieve deep-blue, high-efficiency, and long-lived solution-processed polymer light-emitting diodes (PLEDs) via a simple molecular level conformation change of an emissive conjugated polymer. We introduce rigid β-phase segments into a 95%…

Organic Electronics and PhotovoltaicsOrganic Light-Emitting Diodes ResearchConducting polymers and applications

Oxygenation of sulfides catalysed by SBA‐15‐immobilized molybdenum(VI) complex of a bis(phenol) diamine ligand using aqueous hydrogen peroxide as a green oxidant

Iraj Saberikia、Elham Safaei、Babak Karimi 等 4 位作者2018-03-06Applied Organometallic Chemistry

A highly efficient and reusable molybdenum‐based catalyst has been synthesized by covalent grafting of a bis(phenol) diamine ligand, namely 2‐(((2‐bromoethyl)(2‐((3,5‐di‐tert‐butyl‐2‐hydroxybenzyl)amino)ethyl)amino)methyl)‐4,6‐di‐tert‐butylphenol, onto functionalized ordered mesoporous silica (SBA‐15) followed by comp…

Polyoxometalates: Synthesis and ApplicationsChemical Synthesis and ReactionsOxidative Organic Chemistry Reactions

1‐Methylcyclopropene (1‐MCP) effects on natural disease resistance in stored sweet potato

Robert Sarpong Amoah、Leon A. Terry2018-03-06Journal of the Science of Food and Agriculture

BACKGROUND: , 24 h) and roots stored at 15 °C. During storage, samples were evaluated for the respiration rate, sprout growth, weight loss, incidence of decay and changes in dry matter. The roots were further assayed for the temporal changes in individual non-structural carbohydrates and phenolic compounds in the skin…

Postharvest Quality and Shelf Life ManagementNanocomposite Films for Food PackagingPlant Surface Properties and Treatments

Pore‐Environment Engineering with Multiple Metal Sites in Rare‐Earth Porphyrinic Metal–Organic Frameworks

Liangliang Zhang、Shuai Yuan、Liang Feng 等 9 位作者2018-03-06Angewandte Chemie

Abstract Multi‐component metal–organic frameworks (MOFs) with precisely controlled pore environments are highly desired owing to their potential applications in gas adsorption, separation, cooperative catalysis, and biomimetics. A series of multi‐component MOFs, namely PCN‐900(RE), were constructed from a combination…

Metal-Organic Frameworks: Synthesis and ApplicationsCovalent Organic Framework ApplicationsNanocluster Synthesis and Applications

Evidence for a second-order phase transition around 350 K in Ce3Rh4Sn13

Chia‐Nung Kuo、Wei‐Tin Chen、C. W. Tseng 等 8 位作者2018-03-06Physical review. B./Physical review. B

We report an observation of a phase transition in ${\mathrm{Ce}}_{3}{\mathrm{Rh}}_{4}{\mathrm{Sn}}_{13}$ with the transition temperature ${T}^{*}\ensuremath{\simeq}350$ K by means of synchrotron x-ray powder diffraction, specific heat, electrical resistivity, Seebeck coefficient, thermal conductivity, as well as $^{11…

Advanced Thermoelectric Materials and DevicesRare-earth and actinide compoundsThermodynamic and Structural Properties of Metals and Alloys

Tunable Electronic and Topological Properties of Germanene by Functional Group Modification

Ceng-Ceng Ren、Shu-Feng Zhang、Wei-xiao Ji 等 6 位作者2018-03-06Nanomaterials

Electronic and topological properties of two-dimensional germanene modified by functional group X (X = H, F, OH, CH₃) at full coverage are studied with first-principles calculation. Without considering the effect of spin-orbit coupling (SOC), all functionalized configurations become semiconductors, removing the Dirac…

Graphene research and applicationsQuantum and electron transport phenomenaTopological Materials and Phenomena

Bacterial Attachment, Aggregation, and Alignment on Subcellular Nanogratings

Chang Quan Lai2018-03-06Langmuir

Recent investigations on the interactions of bacteria with micro/nanostructures have revealed a wide range of prokaryotic responses that were previously unknown. Despite these advances, however, it remains unclear how collective bacterial behavior on a surface would be influenced by the presence of anisotropic nanostr…

Bacterial biofilms and quorum sensingPolymer Surface Interaction StudiesInhalation and Respiratory Drug Delivery

Effect of the paste–anode interface under impressed current cathodic protection in concrete structures

Emma Zhang、Luping Tang、Diana Bernin 等 4 位作者2018-03-06Materials and Corrosion

Impressed current cathodic protection (ICCP) is a powerful method to prevent and stop corrosion of steel in concrete structures. To evaluate the long‐term effect of ICCP, accelerated tests have been adopted using high current densities. A carbon fiber reinforced polymer mesh was introduced as anode. The presented rese…

Corrosion Behavior and InhibitionConcrete Corrosion and DurabilitySmart Materials for Construction

Promotion effect of additive Fe on Al2O3 supported Ni catalyst for CO2 methanation

Zhenhua Li、Tingting Zhao、Lijuan Zhang2018-03-06Applied Organometallic Chemistry

In this paper, the effect of additive Fe on Ni/Al2O3 catalyst for CO2 methanation was studied. A series of bimetallic Ni–Fe catalysts with different Ni/Fe ratios were prepared by impregnation method. For comparison, monometallic Fe‐based and Ni‐based catalysts were also prepared by the same method. The characterizatio…

Catalytic Processes in Materials ScienceCatalysts for Methane ReformingChemical Looping and Thermochemical Processes