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Thin Films in Partial Wetting: Internal Selection of Contact-Line Dynamics

Amir A. Pahlavan、Luis Cueto‐Felgueroso、Gareth H. McKinley 等 4 位作者2015-07-17Physical Review Letters

When a liquid touches a solid surface, it spreads to minimize the system's energy. The classic thin-film model describes the spreading as an interplay between gravity, capillarity, and viscous forces, but it cannot see an end to this process as it does not account for the nonhydrodynamic liquid-solid interactions. Whi…

Fluid Dynamics and Heat TransferPickering emulsions and particle stabilizationFluid Dynamics and Thin Films

Control of ATP concentration in Escherichia coli using synthetic small regulatory RNAs for enhanced S-adenosylmethionine production

Yawei Chen、Shuangyan Lou、Li‐Hai Fan 等 5 位作者2015-07-17FEMS Microbiology Letters

ATP is the limiting precursor and driving force for S-adenosylmethionine (SAM) biosynthesis in Escherichia coli. In contrast to traditional optimization of fermentation processes, the synthetic sRNA-based repression strategy, which was developed as a highly efficient gene knockdown approach, has been applied for the r…

RNA and protein synthesis mechanismsEnzyme Structure and FunctionBiochemical and Molecular Research

Synthesis and Characterization of pH‐Responsive Copolypeptides Vesicles for siRNA and Chemotherapeutic Drug Co‐Delivery

Zhanrong Li、Jingguo Li、Jinsheng Huang 等 6 位作者2015-07-17Macromolecular Bioscience

Novel diblock copolypeptides are synthesized and evaluated as a pH-sensitive drug delivery vector for anticancer drugs and siRNA co-delivery. The synthetic process involve the ring opening polymerization of α-amino acid N-carboxyanhydrides as well as aminolysis and deprotection reactions, and the structures are charac…

Nanoparticle-Based Drug DeliveryRNA Interference and Gene DeliverySupramolecular Self-Assembly in Materials

Metal-VO2hybrid grating structure for a terahertz active switchable linear polarizer

Jun‐Hwan Shin、Kiwon Moon、Eui Su Lee 等 5 位作者2015-07-17Nanotechnology

An active terahertz (THz) wave hybrid grating structure of Au/Ti metallic grating on VO2/Al2O3 (0001) was fabricated and evaluated. In our structure, it is shown that the metallic gratings on the VO2 layer strengthen the metallic characteristics to enhance the contrast of the metallic and dielectric phases of a VO2-ba…

Photonic and Optical DevicesPhotonic Crystals and ApplicationsTransition Metal Oxide Nanomaterials

Nanoparticle Capping Agent Dynamics and Electron Transfer: Polymer-Gated Oxidation of Silver Nanoparticles

Eden E. L. Tanner、Kristina Tschulik、Romilly Tahany 等 6 位作者2015-07-17The Journal of Physical Chemistry C

Capping agent-controlled stability of nanoparticles tailors them for different applications, but the associated particle–solvent dynamics are poorly understood. Herein, previously unseen capping agent-gated nanoparticle redox activity is observed for poly(ethylene glycol)-coated silver nanoparticles. This is revealed…

Nanoparticles: synthesis and applicationsGold and Silver Nanoparticles Synthesis and ApplicationsElectrochemical Analysis and Applications

Comparison of adsorbents for H2S and D4 removal for biogas conversion in a solid oxide fuel cell

Léa Sigot、Gaëlle Ducom、Belkacem Benadda 等 4 位作者2015-07-17Environmental Technology

Biogas contains trace compounds detrimental for solid oxide fuel cell (SOFC) application, especially sulphur-containing compounds and volatile organic silicon compounds (VOSiCs). It is therefore necessary to remove these impurities from the biogas for fuelling an SOFC. In this paper, dynamic lab-scale adsorption tests…

Catalytic Processes in Materials ScienceCarbon Dioxide Capture TechnologiesIndustrial Gas Emission Control

Design of panoramic lens based on ogive and aspheric surface

Junhua Wang、Yuechao Liang、Min Xu2015-07-17Optics Express

A new method improving the design of panoramic lens with a long focal length based on ogive and aspheric surface is proposed. In this design, we use a special conjugation between "annular entrance pupil" and aperture stop to correct the chromatic transverse aberrations. Moreover, we use a new imaging relationship to i…

Advanced optical system designOptical Coatings and GratingsSatellite Image Processing and Photogrammetry

Tsuji–Wacker Oxidation of Terminal Olefins using a Palladium–Carbon Nanotube Nanohybrid

Simon Donck、Edmond Gravel、Nimesh Shah 等 6 位作者2015-07-17ChemCatChem

Abstract Palladium nanoparticles supported on carbon nanotubes were used in the Tsuji–Wacker oxidation. The palladium‐based nanohybrid was found to be very active in combination with cuprous chloride for the selective oxidation of terminal olefins into methyl ketones. The co‐catalytic system operates under very mild a…

Catalytic C–H Functionalization MethodsPolyoxometalates: Synthesis and ApplicationsOxidative Organic Chemistry Reactions

Preparation of High‐Grade Powders from Tomato Paste Using a Vacuum Foam Drying Method

Martin Sramek、Ralf M. Schweiggert、Andreas van Kampen 等 5 位作者2015-07-17Journal of Food Science

We present a rapid and gentle drying method for the production of high-grade tomato powders from double concentrated tomato paste, comparing results with powders obtained by foam mat air drying and freeze dried powders. The principle of this method consists of drying tomato paste in foamed state at low temperatures in…

Proteins in Food SystemsPickering emulsions and particle stabilizationMicroencapsulation and Drying Processes

Enhanced Charge Transport in Tantalum Nitride Nanotube Photoanodes for Solar Water Splitting

Lei Wang、Nhat Truong Nguyen、Xuemei Zhou 等 6 位作者2015-07-17ChemSusChem

In the present work we grow anodic self-organized Ta2O5 nanotube layers, which are converted by ammonolysis to Ta3 N5 nanotubes, and then are used as photoanodes for photoanalytic water splitting. We introduce a two-step anodization process that not only improves order (reduced growth defects) and overall light absorp…

Advanced Photocatalysis TechniquesCopper-based nanomaterials and applicationsElectronic and Structural Properties of Oxides

Organic Semiconductor g‐C3N4 Modified TiO2 Nanotube Arrays for Enhanced Photoelectrochemical Performance in Wastewater Treatment

Lingjuan Liu、Guan Zhang、John T. S. Irvine 等 4 位作者2015-07-17Energy Technology

Abstract g‐C3N4 sensitized TiO2 nanotube arrays (g‐C3N4/TNTs) were fabricated by using a simple solid sublimation and transition (SST) method using urea as precursor. The photoelectrochemical (PEC) performances were evaluated in this work. It is proposed that the g‐C3N4 layer can play dual roles: surface sensitization…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesGa2O3 and related materials

Templating Sol–Gel Hematite Films with Sacrificial Copper Oxide: Enhancing Photoanode Performance with Nanostructure and Oxygen Vacancies

Yang Li、Néstor Guijarro、Xiaoli Zhang 等 8 位作者2015-07-17ACS Applied Materials & Interfaces

Nanostructuring hematite films is a critical step for enhancing photoelectrochemical performance by circumventing the intrinsic limitations on minority carrier transport. Herein, we present a novel sol-gel approach that affords nanostructured hematite films by including CuO as sacrificial templating agent. First, by a…

Advanced Photocatalysis TechniquesIron oxide chemistry and applicationsCopper-based nanomaterials and applications

Importance of X Y anisotropy in Sr 2 IrO 4 revealed by magnetic critical scattering experiments

J. G. Vale、S. Boseggia、H. C. Walker 等 12 位作者2015-07-17Physical Review B

The magnetic critical scattering in ${\mathrm{Sr}}_{2}{\mathrm{IrO}}_{4}$ has been characterized using x-ray resonant magnetic scattering (XRMS) both below and above the three-dimensional antiferromagnetic ordering temperature ${T}_{\text{N}}$. The order parameter critical exponent below ${T}_{\text{N}}$ is found to b…

Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics

Towards tuning PDT relevant photosensitizer properties: comparative study for the free and Zn2+ coordinated meso-tetrakis[2,6-difluoro-5-(N-methylsulfamylo)phenyl]porphyrin

J. Dąbrowski、Barbara Pucelik、Mariette M. Pereira 等 5 位作者2015-07-17Journal of Coordination Chemistry

The spectroscopic, photochemical, and biological studies of 5,10,15,20-tetrakis[2,6-difluoro-5(N-methylsulfamylo)phenyl]porphyrinate Zn(II) (ZnF2PMet) were carried out including absorption and fluorescence spectra, fluorescence quantum yields, triplet absorption spectra, triplet lifetimes, singlet oxygen quantum yield…

Nanoplatforms for cancer theranosticsPorphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research Studies

Comparison of single and competitive metal adsorption by pepper stem biochar

Jong‐Hwan Park、Ju-Sik Cho、Yong Sik Ok 等 7 位作者2015-07-17Archives of Agronomy and Soil Science

Carbon-based sorbents have been proven to be cost-effective in removing pollutants from wastewater. Biochar from plant residue and agricultural waste is an emerging treatment technology. However, there is a limited number of studies on the effects of various biochar sources on metal adsorption. The aim of this study w…

Adsorption and biosorption for pollutant removalHeavy metals in environmentClay minerals and soil interactions

Photoemission from advanced heterostructured Al_xGa_1-xAs/GaAs photocathodes under multilevel built-in electric field

Cheng Feng、Yijun Zhang、Yunsheng Qian 等 7 位作者2015-07-17Optics Express

A heterostructured Al(x)Ga(1-x)As/GaAs photocathode consisting of a composition-graded buffer layer and an exponential-doped emission layer is developed to improve the photoemission performance over the wavelength region of interest. The theoretical quantum efficiency models for reflection-mode and transmission-mode A…

GaN-based semiconductor devices and materialsGa2O3 and related materialsPhotocathodes and Microchannel Plates

Highly Efficient and Reusable Microporous Schiff Base Network Polymer as a Heterogeneous Catalyst for CuAAC Click Reaction

Ömer Suat Taşkın、Sajjad Dadashi‐Silab、Barış Kışkan 等 5 位作者2015-07-17Macromolecular Chemistry and Physics

A microporous Schiff base network (SNW) polymer containing melamine groups is synthesized as a specific metal template material and employed as a solid support to stabilize copper(I) ions. The Cu(I) ions are incorporated into the SNW structure through coordination with the nitrogen atoms present in the melamine groups…

Metal-Organic Frameworks: Synthesis and ApplicationsClick Chemistry and ApplicationsCovalent Organic Framework Applications

Hydrogen Bond Hierarchy: Persistent Phenol···Chloride Hydrogen Bonds in the Presence of Carboxylic Acid Moieties

Naga Kiran Duggirala、Geoffrey P. F. Wood、Addison Fischer 等 6 位作者2015-07-17Crystal Growth & Design

Crystal engineering strategies have been delineated during the past decade for the design of multi-component molecular crystals (molecular cocrystals, MCCs). However, the same depth of understanding has not yet been established for cocrystals that are comprised of at least one ionic compound (ionic cocrystals, ICCs).…

Crystallography and molecular interactionsSolid-state spectroscopy and crystallographyCrystallization and Solubility Studies

Trinuclear CuII Structural Isomers: Coordination, Magnetism, Electrochemistry and Catalytic Activity towards the Oxidation of Alkanes

Manas Sutradhar、Luísa M. D. R. S. Martins、M. Fátima C. Guedes da Silva 等 6 位作者2015-07-17European Journal of Inorganic Chemistry

Abstract The reaction of the Schiff base (3,5‐di‐tert‐butyl‐2‐hydroxybenzylidene)‐2‐hydroxybenzohydrazide (H3L) with copper(II) nitrate, acetate or metaborate has led to the isomeric complexes [Cu3(L)2(MeOH)4] (1), [Cu3(L)2(MeOH)2]·2MeOH (2) and [Cu3(L)2(MeOH)4] (3), respectively, in which the ligand L exhibits dianio…

Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms

Development of Titanium Dioxide (TiO 2 ) Nanocoatings on Food Contact Surfaces and Method to Evaluate Their Durability and Photocatalytic Bactericidal Property

Veerachandra K. Yemmireddy、Glenn D. Farrell、Yen‐Con Hung2015-07-17Journal of Food Science

Titanium dioxide (TiO2 ) is a well-known photocatalyst for its excellent bactericidal property under UVA light. The purpose of this study was to develop physically stable TiO2 coatings on food contact surfaces using different binding agents and develop methods to evaluate their durability and microbicidal property. Se…

TiO2 Photocatalysis and Solar CellsNanoparticles: synthesis and applicationsAntimicrobial agents and applications