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Gold nanoparticle–graphene nanohybrid bridged 3-amino-5-mercapto-1,2,4-triazole-functionalized multiwall carbon nanotubes for the simultaneous determination of hydroquinone, catechol, resorcinol and nitrite

Chunli Yang、Yaqin Chai、Ruo Yuan 等 5 位作者2012-11-14Analytical Methods

In this report, gold nanoparticle–graphene nanohybrids (Au–GR) and 3-amino-5-mercapto-1,2,4-triazole-functionalized multiwall carbon nanotubes (MWCNT–SH) were synthesized. And a novel hybrid material MWCNT–SH@Au–GR was obtained by the interaction between gold nanoparticles of two dimensional (2D) Au–GR and SH groups o…

Electrochemical sensors and biosensorsConducting polymers and applicationsElectrochemical Analysis and Applications

Room Temperature Metalation of 2H-TPP Monolayer on Iron and Nickel Surfaces by Picking up Substrate Metal Atoms

A. Goldoni、Carlo A. Pignedoli、Giovanni Di Santo 等 8 位作者2012-11-14ACS Nano

Here, it is demonstrated, using high-resolution X-ray spectroscopy and density functional theory calculations, that 2H-tetraphenyl porphyrins metalate at room temperature by incorporating a surface metal atom when a (sub)monolayer is deposited on 3d magnetic substrates, such as Fe(110) and Ni(111). The calculations de…

Graphene research and applicationsMolecular Junctions and NanostructuresSurface Chemistry and Catalysis

Accurate Analysis of Light Scattering and Absorption by an Infinite Flat Grating of Thin Silver Nanostrips in Free Space Using the Method of Analytical Regularization

Tatiana L. Zinenko、Marian Marciniak、Alexander I. Nosich2012-11-14IEEE Journal of Selected Topics in Quantum Electronics

We study the plane wave scattering and absorption by a flat grating of thin silver nanostrips located in free space, in the visible-light range. The formulation involves generalized boundary conditions imposed on the strip median lines. We use an accurate numerical solution to this problem based on the dual-series equ…

Plasmonic and Surface Plasmon ResearchPhotonic Crystals and ApplicationsOptical Coatings and Gratings

Hyaluronated fullerenes with photoluminescent and antitumoral activity

Dong Sup Kwag、Kyeongsoon Park、Kyung Taek Oh 等 4 位作者2012-11-14Chemical Communications

Hyaluronated fullerene has strong near-infrared (NIR) fluorescence intensity without labelling with any fluorophores or isotopes. This fullerene allowed high-resolution fluorescent imaging of tumor sites in vivo and resulted in a significant regression of HCT-116 tumors.

Nanoplatforms for cancer theranosticsFullerene Chemistry and ApplicationsBoron and Carbon Nanomaterials Research

Predictive Maintenance by Electrical Signature Analysis to Induction Motors

Erik Leandro、Levy Ely de Lacerda de Oliveira、Jonas Guedes Borges da Silva 等 5 位作者2012-11-14InTech eBooks

Industries always try to increase the reliability of their productive process. In this context, predictive maintenance performs a fundamental role in order to reach high availability and reliability concerning their pieces of equipment. Predictive maintenance can be understood as the action on the equipment, system or…

Machine Fault Diagnosis TechniquesMagnetic Properties and ApplicationsNon-Destructive Testing Techniques

Estimation of the solubility parameters of model plant surfaces and agrochemicals: a valuable tool for understanding plant surface interactions

M. Khayet、Victoria Fernández2012-11-14Theoretical Biology and Medical Modelling

BACKGROUND: Most aerial plant parts are covered with a hydrophobic lipid-rich cuticle, which is the interface between the plant organs and the surrounding environment. Plant surfaces may have a high degree of hydrophobicity because of the combined effects of surface chemistry and roughness. The physical and chemical c…

Surface Modification and SuperhydrophobicityAdvancements in Transdermal Drug DeliveryPlant Surface Properties and Treatments

Super elastic strain limit in metallic glass films

Q.K. Jiang、Pan Liu、Yi Ma 等 9 位作者2012-11-14Scientific Reports

On monolithic Ni-Nb metallic glass films, we experimentally revealed 6.6% elastic strain limit by in-situ transmission electron microscopy observations. The origin of high elastic strain limit may link with high free volume in the film, causing the rearrangement of loosely bonded atomic clusters (or atoms) upon elasti…

Glass properties and applicationsMetallic Glasses and Amorphous AlloysPhase-change materials and chalcogenides

Structure and stability of hexadentate complexes of ligands based on AAZTA for efficient PET labelling with gallium-68

B.P. Waldron、David Parker、Carsten Burchardt 等 6 位作者2012-11-14Chemical Communications

Pre-organised tricarboxylate ligands based on 6-amino-perhydro-1,4-diazepine bind (68)Ga rapidly and selectively in acetate buffer at pH 4 to 7, forming kinetically stable complexes suitable for use in PET imaging.

Medical Imaging Techniques and ApplicationsLanthanide and Transition Metal ComplexesRadiopharmaceutical Chemistry and Applications

Reaction-Induced Microphase Separation in Epoxy Thermosets Containing Block Copolymers Composed of Polystyrene and Poly(ε-caprolactone): Influence of Copolymer Architectures on Formation of Nanophases

Rentong Yu、Sixun Zheng、Xiuhong Li 等 4 位作者2012-11-14Macromolecules

We report an investigation of the influence of block copolymer architectures on formation of nanophases in epoxy thermosets via reaction-induced microphase separation approach. Toward this end, three binary block copolymers composed of polystyrene (PS) and poly(ε-caprolactone) (PCL) were synthesized via the combinatio…

Advanced Polymer Synthesis and CharacterizationPolymer Nanocomposites and PropertiesEpoxy Resin Curing Processes

Damping of the acoustic vibrations of a suspended gold nanowire in air and water environments

Todd A. Major、Aurélien Crut、Bo Gao 等 7 位作者2012-11-14Physical Chemistry Chemical Physics

The lifetimes of the acoustic vibrations of metal nanostructures depend sensitively on the properties of the environment, such as the acoustic impedance and viscosity. In order to accurately study these effects, they have to be separated from the damping processes that are inherent to the nanostructure. Here we show t…

Carbon Nanotubes in CompositesForce Microscopy Techniques and ApplicationsMechanical and Optical Resonators

Cadmium-free quantum dots as time-gated bioimaging probes in highly-autofluorescent human breast cancer cells

Gopa Mandal、Molly R. Darragh、Y. Andrew Wang 等 4 位作者2012-11-14Chemical Communications

We report cadmium-free, biocompatible (Zn)CuInS(2) quantum dots with long fluorescence lifetimes as superior bioimaging probes using time-gated detection to suppress cell autofluorescence and improve the signal : background ratio by an order of magnitude. These results will be important for developing non-toxic fluore…

Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesAdvanced Biosensing Techniques and Applications

Load‐Controlled Roll Transfer of Oxide Transistors for Stretchable Electronics

Bhupendra K. Sharma、Bongkyun Jang、Jeong‐Eun Lee 等 8 位作者2012-11-14Advanced Functional Materials

Abstract A stretchable and transparent In‐Ga‐Zn‐O (IGZO) thin film transistors with high electrical performance and scalability is demonstrated. A load‐controlled roll transfer method is realized for fully automated and scalable transfer of the IGZO TFTs from a rigid substrate to a nonconventional elastomeric substrat…

ZnO doping and propertiesAdvanced Sensor and Energy Harvesting MaterialsThin-Film Transistor Technologies

Normally Off Single-Nanoribbon $\hbox{Al}_{2} \hbox{O}_{3}\hbox{/GaN}$ MISFET

Ki‐Sik Im、Ryun‐Hwi Kim、Ki-Won Kim 等 7 位作者2012-11-14IEEE Electron Device Letters

A single-nanoribbon Al2O3/GaN metal-insulator-semiconductor field-effect transistor (MISFET) has been fabricated. The fabricated device exhibits normally off operation with a threshold voltage of 2.1 V. The device also exhibits superior performances such as a maximum drain current density of 1.51 A/mm, a maximum trans…

ZnO doping and propertiesGaN-based semiconductor devices and materialsGa2O3 and related materials

Third-harmonic spectroscopy and modeling of the nonlinear response of plasmonic nanoantennas

Bernd Metzger、Mario Hentschel、Markus Lippitz 等 4 位作者2012-11-14Optics Letters

We perform third-harmonic (TH) spectroscopy on rod-type gold nanoantenna arrays using widely tunable sub-30 fs laser pulses. We find the peak of the TH generation efficiency of the antenna arrays always slightly redshifted with respect to the peak of their linear extinction spectrum. We model the wavelength-dependent…

Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchPhotonic and Optical Devices

High‐Voltage Pyrophosphate Cathode: Insights into Local Structure and Lithium‐Diffusion Pathways

John M. Clark、Shin‐ichi Nishimura、Atsuo Yamada 等 4 位作者2012-11-14Angewandte Chemie International Edition

Ion-transport paths: combined modeling and neutron diffraction studies provide atomic-scale insights into Li(2)FeP(2)O(7), a material proposed for a new lithium-battery cathode with reversible electrode operation at the highest voltage of all known Fe-based phosphates. The results indicate that Li(+) ions are transpor…

Advancements in Battery MaterialsGraphene research and applicationsAdvanced Battery Materials and Technologies

Room-temperature ferroelectricity in diisopropylammonium bromide

Anna Piecha‐Bisiorek、Anna Gągor、R. Jakubas 等 4 位作者2012-11-14CrystEngComm

A room-temperature ferroelectric, diisopropylammonium bromide (DPB), with dielectric constant ε ≈ 12 000 and a clear hysteresis loop at Tc = 425 K is reported. At 417 K DPB undergoes the irreversible phase transition from nonpolar orthorhombic P212121 to the ferroelectric monoclinic phase (P21) and subsequently, at 42…

Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesSolid-state spectroscopy and crystallography

Cocrystals of Active Pharmaceutical Ingredients—Praziquantel in Combination with Oxalic, Malonic, Succinic, Maleic, Fumaric, Glutaric, Adipic, And Pimelic Acids

J.C. Espinosa-Lara、Diana Guzman‐Villanueva、J.I. Arenas-Garcia 等 8 位作者2012-11-14Crystal Growth & Design

The combination of racemic praziquantel, ( RS )-PZQ, with aliphatic dicarboxylic acids of the homologous series HOOC–(CH 2 ) n –COOH (with n = 0–8) and the unsaturated analogues of succinic acid as cocrystal formers via liquid-assisted grinding provided a total of nine 1:1 and 2:1 cocrystals with oxalic acid, malonic…

Crystallography and molecular interactionsCrystallization and Solubility StudiesPhenothiazines and Benzothiazines Synthesis and Activities

Metal‐Ion Metathesis in Metal–Organic Frameworks: A Synthetic Route to New Metal–Organic Frameworks

Yonghwi Kim、Sunirban Das、Saurav Bhattacharya 等 8 位作者2012-11-14Chemistry - A European Journal

A porous metal-organic framework, Mn(H(3)O)[(Mn(4)Cl)(3)(hmtt)(8)] (POST-65), was prepared by the reaction of 5,5',10,10',15,15'-hexamethyltruxene-2,7,12-tricarboxylic acid (H(3)hmtt) with MnCl(2) under solvothermal conditions. POST-65(Mn) was subjected to post-synthetic modification with Fe, Co, Ni, and Cu according…

Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesChemical Synthesis and Characterization

Improved Hydrothermal Stability of Mesoporous Oxides for Reactions in the Aqueous Phase

Hien N. Pham、Amanda E. Anderson、Robert L. Johnson 等 5 位作者2012-11-14Angewandte Chemie International Edition

A simple and inexpensive approach is used to coat metal oxide surfaces (SBA-15) with thin films of carbon. These carbon films provide improved hydrothermal stability to oxides, such as silica and alumina, which are not otherwise stable at elevated temperatures in the presence of liquid water. Furthermore, the carbon f…

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization Studies