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Lanthanide Luminescence Modulation by Cation–π Interaction in a Bioinspired Scaffold: Selective Detection of Copper(I)

Manon Isaac、Sergey A. Denisov、Amandine Roux 等 7 位作者2015-07-29Angewandte Chemie

Abstract A prototype luminescent turn‐on probe for Cu + (and Ag + ) is described, harnessing a selective binding site (log K ass =9.4 and 7.3 for Cu + and Ag + , respectively) based on the coordinating environment of the bacterial metallo‐chaperone CusF, integrated with a terbium‐ion‐signaling moiety. Cation–π interac…

Advanced biosensing and bioanalysis techniquesLanthanide and Transition Metal ComplexesNanocluster Synthesis and Applications

Biochemical and histopathological ultrastructural changes caused by ZnO nanoparticles in mice

Mohammad Azam Ansari、Haris M. Khan、Aijaz Ahmed Khan 等 4 位作者2015-07-29Toxicological & Environmental Chemistry Reviews

Five week-old mice were divided into a vehicle control group, and groups exposed to ZnO nanoparticles at low (0.5 g/kg), middle (1 g/kg), high (3 g/kg), and exceptionally high-dose (5 g/kg). After the first, second, third, and fourth weeks’ of exposure, blood biochemistry, histopathology, and electron microscopic ultr…

Nanoparticles: synthesis and applicationsHeavy Metal Exposure and ToxicityTrace Elements in Health

Diatoms in an extreme euxinic environment (Rogoznica Lake, eastern Adriatic coast)

Nikola Malešević、Irena Ciglenečki、Elvira Bura‐Nakić 等 8 位作者2015-07-29Acta Botanica Croatica

Abstract The Rogoznica Lake marine system is a small, karstic, naturally eutrophic and euxinic marine environment. Abundance and temporal distribution of phytoplankton was investigated in relation to environmental conditions in the period from 1998 to 2013. The 36 determined diatoms contributed 90% of the total phytop…

Marine and coastal ecosystemsAquatic Ecosystems and Phytoplankton DynamicsDiatoms and Algae Research

High-Performance Solution Processed Inorganic Quantum-Dot LEDs

Pegah Amini、Mahboubeh Dolatyari、Ali Rostami 等 6 位作者2015-07-29IEEE Transactions on Nanotechnology

In this research paper, fabrication of novel CdSe\ZnS QD-LEDs with solution processing method is presented, and the impact of trap energy levels in the electron and hole transport levels on these QD-LEDs brightness is investigated. Two types of QD-LEDs are fabricated with ITO as the transparent anode electrode, NiO na…

ZnO doping and propertiesQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films

Graphene: Electrochemical Production and its Energy Storage Properties

Gomaa A. M. Ali、Mashitah M. Yusoff、Kwok Feng Chong2015-07-29UMP Institutional Repository (Universiti Malaysia Pahang)

Graphene oxide was prepared by Hummers’ method and then electrochemically reduced to produce graphene nanosheets. Physicochemical characterizations were performed using XRD, FTIR, FESEM, TEM, Raman and UV–Vis techniques to elucidate the structure and morphology of the prepared material. The electrochemical studies had…

Graphene research and applicationsSupercapacitor Materials and Fabrication

Nitrogen-Based Ligands Accelerate Ammonia Borane Dehydrogenation with the Shvo Catalyst

Xingyue Zhang、Zhiyao Lü、Lena K. Foellmer 等 4 位作者2015-07-29Organometallics

We previously reported that quantitative poisoning, a test for homogeneous catalysis, behaves oddly in the dehydrogenation of ammonia borane (AB) by Shvo’s catalyst, whereas the “poison” 1,10-phenanthroline (phen) accelerates catalysis and apparently prevents catalyst deactivation. Thus, we proposed a protective role…

Hydrogen Storage and MaterialsBoron and Carbon Nanomaterials ResearchAmmonia Synthesis and Nitrogen Reduction

The vacancy–hydrogen defect in diamond: A computational study

C. V. Peaker、J. P. Goss、P. R. Briddon 等 5 位作者2015-07-29physica status solidi (a)

Abstract Hydrogen is grown into CVD diamond and occurs in point defects also involving a lattice vacancy, V . Complexes involving V , H and nitrogen, or silicon have been identified by experiment, and in some cases the microscopic structure has been identified with the use of quantum‐chemical simulations. In this stud…

High-pressure geophysics and materialsDiamond and Carbon-based Materials ResearchElectronic and Structural Properties of Oxides

The properties of blends of maleic‐anhydride‐grafted polyethylene and thermoplastic starch using hyperbranched polyester polyol as a plasticizer

Manuel Guzmán、Edwin A. Murillo2015-07-29Polymer Engineering and Science

The first aim of this study was to prepare thermoplastic starch (TPS), namely blends of tapioca starch and hyperbranched polyester polyol and to evaluate the hyperbranched polyester polyol (HBP) as a plasticizing agent for tapioca starch. The second aim was to prepare blends of maleic‐anhydride‐grafted low‐density pol…

Advanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and propertiesDendrimers and Hyperbranched Polymers

SuRankCo: supervised ranking of contigs in de novo assemblies

Mathias Kuhring、Piotr Wojciech Dąbrowski、Vitor C. Piro 等 5 位作者2015-07-29BMC Bioinformatics

BACKGROUND: Evaluating the quality and reliability of a de novo assembly and of single contigs in particular is challenging since commonly a ground truth is not readily available and numerous factors may influence results. Currently available procedures provide assembly scores but lack a comparative quality ranking of…

Software Engineering ResearchManufacturing Process and OptimizationMachine Learning in Materials Science

The effect of blending sequence on the structure and properties of poly(vinyl chloride)/chicken eggshell powder composites

M. Sharmeeni、Yamuna Munusamy、H. Ismail2015-07-29Journal of Vinyl and Additive Technology

The effect of the blending sequence of poly(vinyl chloride)/chicken eggshell powder (PVC/ESP) composites on the processing, mechanical properties, morphology, and thermal decomposition were investigated. The compounding of composites was done by using a Rheomix mixture internal mixer at 180°C and a rotor speed of 30 r…

Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesPolymer Science and PVC

Hybrid multi‐scale epoxy composites containing conventional glass microfibers and electrospun glass nanofibers with improved mechanical properties

Yong Zhao、Tao Xu、Xiaojing Ma 等 6 位作者2015-07-29Journal of Applied Polymer Science

ABSTRACT A mechanically flexible mat consisting of structurally amorphous SiO 2 (glass) nanofibers was first prepared by electrospinning followed by pyrolysis under optimized conditions and procedures. Thereafter, two types of hybrid multi‐scale epoxy composites were fabricated via the technique of vacuum assisted res…

Mechanical Behavior of CompositesElectrospun Nanofibers in Biomedical ApplicationsPolymer composites and self-healing

Polyether polyols as GPC calibration standards for determination of molecular weight distribution of polyether polyols

Mohd Azmil Mohd Noor、Vahid Sendijarević、Hazimah Abu Hassan 等 8 位作者2015-07-29Journal of Applied Polymer Science

ABSTRACT Average molecular weights ( M n , M w and M p ) are important characteristics of oligomers and polymers, and therefore there is a need to have a precise and reliable determination method. A gel permeation chromatography (GPC) coupled with a single refractive index detector was used to determine the molecular…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesPolymer composites and self-healing

Diffusion and Phase Transitions Accelerated by Severe Plastic Deformation

Boris B. Straumal、Olga A. Kogtenkova、Р. З. Валиев 等 5 位作者2015-07-29Diffusion foundations

Severe plastic deformation (SPD) can lead to the phase transformations in the materials. Even the SPD-treatment at ambient temperature T SPD = 300 K is frequently equivalent to the heat treatment at a certain elevated temperature (effective temperature) T eff > 300 K. However, if the real annealing at effective tem…

Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsMetal Alloys Wear and Properties

Transport of indirect excitons in ZnO quantum wells

Y. Y. Kuznetsova、Fedor Fedichkin、P. Andreakou 等 11 位作者2015-07-29Optics Letters

We report on spatially- and time-resolved emission measurements and observation of transport of indirect excitons in ZnO/MgZnO wide single quantum wells.

Semiconductor Quantum Structures and DevicesZnO doping and propertiesQuantum Dots Synthesis And Properties

Binding energy and mechanical stability of two parallel and crossing carbon nanotubes

Ning Wei、Yue Jia、Ning Wei 等 4 位作者2015-07-29Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences

The binding energy between two parallel (and two crossing) single-walled (and multi-walled) carbon nanotubes (CNTs) is obtained by continuum modelling of the van der Waals interaction between them. The dependence of the binding energy on their diameters, number of walls and crossing angles is systematically analysed.…

Carbon Nanotubes in CompositesGraphene research and applicationsBoron and Carbon Nanomaterials Research

Thermo-responsive and aqueous dispersible ZnO/PNIPAM core/shell nanoparticles

Halima Alem、Aleksandra Schejn、Thibault Roques‐Carmes 等 5 位作者2015-07-29Nanotechnology

In this work, we developed a new process to covalently graft a thermoresponsive polymer on the surface of fluorescent nanocrystals in order to synthesize materials that combine both responsive and fluorescent properties. For the first time, poly(N-isopropylacrylamide) (PNIPAM) was grown by activator regenerated by ele…

Quantum Dots Synthesis And PropertiesHydrogels: synthesis, properties, applicationsPolymer Surface Interaction Studies

Microstructure and growth kinetics of nanocrystalline diamond films deposited in large area/low temperature distributed antenna array microwave‐plasma reactor

Benoît Baudrillart、Fabien Bénédic、Ovidiu Brinza 等 7 位作者2015-07-29physica status solidi (a)

In this paper, we investigate a new distributed antenna array PECVD system, with 16 microwave plasma sources arranged in a 2D matrix, which enables the growth of 4‐inch diamond films using H 2 /CH 4 /CO 2 gas mixture at low gas pressure, typically below 0.45 mbar, and at substrate temperature of 400 °C. The influence…

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

Self‐Assembly of Organic Building Blocks with Directly Exfoliated Graphene to Fabricate Di‐ and Tricomponent Hybrids

Pengyao Xing、Linyi Bai、Hongzhong Chen 等 6 位作者2015-07-29ChemNanoMat

Abstract In this work, we developed a strategy to fabricate self‐assembled aggregates encapsulating graphene from direct exfoliation of graphite. Naphthalene‐anhydride‐appended glutamic acid (NG) and pyrene‐appended glutamic acid (PG) were utilized to exfoliate graphite to generate few‐layer graphene in basic aqueous…

Supramolecular Self-Assembly in MaterialsAdvanced Materials and MechanicsModular Robots and Swarm Intelligence

Biasing Effects in Ferroic Materials

Vladimı́r Koval、Giuseppe Viola、Yongqiang Tan2015-07-29InTech eBooks

In this chapter we present an overview of some important concepts related to the processes and microstructural mechanisms that produce the deformation of hysteresis loops and the loss of their symmetry characteristics in ferroelectric, ferroelastic and ferromagnetic systems. The most discussed themes include: aging an…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsAcoustic Wave Resonator Technologies

Panchromatic Push–Pull Dyes of Elongated Form from Triphenylamine, Diketopyrrolopyrrole, and Tetracyanobutadiene Modules

Raymond Ziessel、Elodie Heyer2015-07-29Synlett

Several symmetrical and unsymmetrical thiophene-functionalized diketopyrrolopyrrole chromophores bearing a bis( p -methoxyphenyl)- p -phenylamine substituent were synthesized through palladium-catalyzed cross-coupling reactions. Mono-substitution and di-substitution occur using either alkyne or borolane groups, allowi…

Porphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent MaterialsPhotochromic and Fluorescence Chemistry