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Preparation and characterization of polysiloxane networks containing metallic platinum particles

20-Nov-2015 | Edyta Stochmal, Joanna Strzezik, Agnieszka Krowiak, Journal of Applied Polymer Science, 2015

ABSTRACT Polysiloxane networks obtained via cross‐linking of D4/V4 polysiloxane served as matrices for incorporation of metallic Pt particles. D4/V4 polymer used in the crosslinking was synthesized by equilibrium cationic ring‐opening polymerization of the corresponding cyclotetrasiloxane ...


SERS of the anti‐inflammatory drug piroxicam adsorbed on the surface of silver or gold colloids as nanocarrier model

20-Nov-2015 | M. Hernandez, E. Corda, J. V. Garcia‐Ramos, C. Domingo, P. Sevilla, Journal of Raman Spectroscopy, 2015

Piroxicam is a non‐steroidal anti‐inflammatory drug actually used with limitations because of serious side effects. It is poorly soluble in pure water and exhibit a minimum of four conformers according to the pH conditions of the solution, but not all of them are medically active. In this study, ...


Verification of Radicals Formation in Ethanol–Water Mixture Based Solution Plasma and Their Relation to the Rate of Reaction

20-Nov-2015 | Tomohito Sudare; Tomonaga Ueno; Anyarat Watthanaphanit; Nagahiro Saito, Journal of Physical Chemistry A, 2015

Our previous research demonstrated that using ethanol–water mixture as a liquid medium for the synthesis of gold nanoparticles by the solution plasma process (SPP) could lead to an increment of the reaction rate of ∼35.2 times faster than that in pure water. This drastic change was observed when ...


Gas phase silanization for silicon nanowire sensors and other lab‐on‐a‐chip systems

19-Nov-2015 | Annina M. Steinbach, Tanja Sandner, Boris Mizaikoff, Steffen Strehle, physica status solidi (c), 2015

Abstract Designing a microfabrication process for lab‐on‐a‐chip systems can at times be challenging, and the need to integrate a chemical surface modification reaction into this process can limit the options. Therefore, a robust set‐up and protocol for the gas phase modification has been ...


Photoluminescence Spectroscopy of Mass-Selected Electrosprayed Ions Embedded in Cryogenic Rare-Gas Matrixes

19-Nov-2015 | Bastian Kern; Jean-François Greisch; Dmitry Strelnikov; Patrick Weis; Artur Böttcher; Mario Ruben; Bernhard Schäfer; ..., Analytical Chemistry, 2015

An apparatus is presented which combines nanoelectrospray ionization for isolation of large molecular ions from solution, mass-to-charge ratio selection in gas-phase, low-energy-ion-beam deposition into a (co-condensed) inert gas matrix and UV laser-induced visible-region photoluminescence (PL) ...


Visible Surface Plasmon Modes in Single Bi2Te3 Nanoplate

19-Nov-2015 | Meng Zhao; Michel Bosman; Mohammad Danesh; Minggang Zeng; Peng Song; Yudi Darma; Andrivo Rusydi; Hsin Lin; Cheng-Wei ..., Nano Letters, 2015

Searching for new plasmonic building blocks which offer tunability and design flexibility beyond noble metals is crucial for advancing the field of plasmonics. Herein, we report that solution-synthesized hexagonal Bi2Te3 nanoplates, in the absence of grating configurations, can exhibit multiple ...


Selective Coordination of Gallium(III), Zinc(II), and Copper(II) by an Asymmetric Dinucleating Ligand: A Model for Metallophosphatases

18-Nov-2015 | Simone Bosch, Peter Comba, Lawrence R. Gahan, Graeme R. Hanson, Christopher Noble, Gerhard Schenk, Hubert Wadepohl, Chemistry - A European Journal, 2015

Abstract Complexation studies of the dinucleating ligand H3L (H3L=2‐{[bis(pyridin‐2‐ylmethyl)amino]methyl}‐6‐{[bis(6‐pivaloylamidopyridin‐2‐ylmethyl)amino]methyl}‐4‐methylphenol), with metal‐binding sites A and B, which both provide four donors to a metal ion; a tertiary amine; two pyridines ...


Preparation and characterization of methylammonium tin iodide layers as photovoltaic absorbers

18-Nov-2015 | Manuel Weiss, Jonas Horn, Christoph Richter, Derck Schlettwein, physica status solidi (a), 2015

The preparation of absorber layers composed of methylammonium tin iodide (CH3NH3SnI3) in a two‐step process was investigated. This material is designed as a less toxic alternative to CH3NH3PbI3 which is commonly used as active material in perovskite solar cells. Tin(II) iodide (SnI2) layers ...


Probing Cellulose Acetylation in Binary Mixtures of an Ionic Liquid with Dimethylsulfoxide and Sulfolane by Chemical Kinetics, Viscometry, Spectroscopy, and Molecular Dynamics Simulations

17-Nov-2015 | Haq Nawaz, Paulo A. R. Pires, Elizabeth P. G. Arêas, Naved I. Malek, Omar A. El Seoud, Macromolecular Chemistry and Physics, 2015

Acetylation of microcrystalline cellulose (MCC) by ethanoic anhydride (Ac2O) in mixtures of the ionic liquid (IL) 1‐allyl‐3‐methylimidazolium chloride and the (structurally related) mole­cular solvents (MSs), dimethylsulfoxide (DMSO) and sulfolane (Sulfn), is studied. Values of the reaction ...


Single-Molecule Spectroscopy and Imaging Over the Decades

17-Nov-2015 | W.E. Moerner; Yoav Shechtman; Quan Wang, Faraday Discussions, 2015

As of 2015, it has been 26 years since the first optical detection and spectroscopy of single molecules in condensed matter. This area of science has expanded far beyond the early low temperature studies in crystals to include single molecules in cells, polymers, and in solution. The early steps ...


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