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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

Electroosmotic dewatering of cellulose nanocrystals

Jonas Wetterling、Karin Sahlin、Tuve Mattsson 等 5 位作者2018-03-06Cellulose

One of the main challenges for industrial production of cellulose nanocrystals is the high energy demand during the dewatering of dilute aqueous suspensions. It is addressed in this study by utilising electroosmotic dewatering to increase the solid content of suspensions of cellulose nanocrystals. The solid content wa…

Advanced Cellulose Research StudiesElectrohydrodynamics and Fluid DynamicsElectrokinetic Soil Remediation Techniques

Validation and application of an LC-MS/MS method for the determination of cyclic oligomers originating from polyamide 6 and polyamide 66 in food simulant

Oliver Kappenstein、Ingo Ebner、Carina Förster 等 7 位作者2018-03-06Food Additives & Contaminants Part A

Polyamides (PAs) are used in the production of various food contact materials (FCMs) and articles such as kitchen utensils and packaging material. Cyclic oligomers have been identified as potential migrants from PA. This study describes the development, validation and application of a multi-oligomer analytical method…

biodegradable polymer synthesis and propertiesEffects and risks of endocrine disrupting chemicalsMicroplastics and Plastic Pollution

Porous and Transparent Metal‐oxide Electrodes : Preparation Methods and Electroanalytical Application Prospects

Maciej Mierzwa、Emmanuel Lamouroux、Alain Walcarius 等 4 位作者2018-03-06Electroanalysis

Abstract A review on the preparation methods for porous and transparent metal‐oxide electrodes is provided alongside a discussion of existing and possible electrochemical and electroanalytical applications. The elaboration routes include non‐templated particle deposition, template approaches, physical deposition metho…

Electrocatalysts for Energy ConversionElectrochemical Analysis and ApplicationsCopper-based nanomaterials and applications

One-pot synthesis of purple benzene-derived MnO2-carbon hybrids and synergistic enhancement for the removal of cationic dyes

Hyemin Kim、Nagahiro Saito2018-03-06Scientific Reports

Abstract MnO2-carbon hybrid (MnO2-C-PBz) was simultaneously synthesized by a one-step solution plasma process (SPP) using a single precursor referred to as “purple benzene”, which was derived from the K+(dicyclohexano-18-crown-6 ether) complex. To clarify the synergistic effects on the cationic dye removal, MnO2-free…

Adsorption and biosorption for pollutant removalGraphene research and applicationsGraphene and Nanomaterials Applications

Effects of Nb and Tempering Time on Carbide Precipitation Behavior and Mechanical Properties of Cr–Mo–V Steel for Brake Discs

Dan Wu、Fuming Wang、Jin Cheng 等 4 位作者2018-03-06steel research international

To improve the performance of the steel for brake discs, like mechanical properties and thermal fatigue resistance, Nb is added to the steel. In this paper, the effects of Nb and tempering time on the microstructure and mechanical properties of the steel have been studied. The investigation of precipitation behaviors…

Brake Systems and Friction AnalysisMechanical stress and fatigue analysisMetal Alloys Wear and Properties

The Role of Extractives and Wood Anatomy in the Wettability and Free Surface Energy of Hardwoods

Agnieszka Jankowska、Piotr Boruszewski、Michał Drożdżek 等 6 位作者2018-03-06BioResources

The main goal of this paper was to clarify to what extent extractives and wood structure determine the surface properties of hardwoods, mainly tropical. The role of wood extractives relative to properties, such as wettability and free surface energy, has been confirmed. The most significant seemed to be cyclohexane ex…

Wood Treatment and PropertiesTextile materials and evaluationsMaterial Properties and Processing

Effect of microtrichia on the interlocking mechanism in the Asian ladybeetle, Harmonia axyridis (Coleoptera: Coccinellidae)

Jiyu Sun、Chao Liu、Bharat Bhushan 等 5 位作者2018-03-06Beilstein Journal of Nanotechnology

The hindwings of beetles are folded under the elytra when they are at rest but are extended during flight, which can provide bioinspiration for the design of deployable micro air vehicles (MAVs). Beetle hindwings must be able to be both securely locked under the elytra and freely extended for flight, depending on the…

Surface Modification and SuperhydrophobicityAdhesion, Friction, and Surface InteractionsPlant Surface Properties and Treatments