Materials Literature
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Recent works indicate that polypropylene (PP) and ethylene-vinylacetate (EVA) filled by nanosilicates may present low content of space charge and high electric strength. Investigations are being made to explain nanocomposite behaviour and characterize their electrical, thermal and mechanical properties. In this paper,…
Characterisation of recombinant Streptomyces spheroides NovW in vitro suggests that it is not a kinetically competent dual action dTDP-6-deoxy-d-xylo-4-hexulose 3,5-epimerase, but possesses only significant 3-epimerase activity.
Alternating copolymers poly[9,9-dihexylfluorene-alt-(1,3-phenylene)x(1,4-phenylene)1−x] (x = 0, 0.05, 0.1, 0.25, 0.5, 0.75, 1.0) were prepared, and the absorption spectra showed the expected hypsochromic shift with increasing meta linkages. In the solution photoluminescence (PL) emission spectra, all but the all-meta…
Abstract The vibrational spectra of the synthetic minerals crandallite and goyazite MAl 3 (OH) 6 (HPO 4 )(PO 4 ) (M = Ca and Sr) were studied by means of vibrational (IR and Raman) and inelastic neutron scattering (INS) spectrometries at room and low temperatures. The results were discussed taking into consideration t…
Raman spectroscopy has been used to investigate ethane, propane, and SF6 interactions with an aligned multiwalled carbon nanotube (MWNT) membrane. Pressures of 7.5-9.3 atm and temperatures of 293-333 K were examined for propane and SF6, whereas slightly lower temperatures (263-293 K) and pressures (6.7-7.5 atm) were u…
We describe the fabrication and characterization of omnidirectional reflectors based on silver-doped chalcogenide glass and polymer. We deposited periodically alternating layers of thermally evaporated Ge33As12Se55 chalcogenide glass, sputtered silver, and spun-cast polyamide-imide polymer. The silver was subsequently…
Formerly power ultrasound was not considered economically viable for water treatment on an industrial scale. This was based on calculations involving direct scale-up of power consumption in small-scale laboratory experiments. Attitudes have changed with the installation of ultrasonic devices in operational water or se…
This study provides an opportunity to control the magnetic spin of nickel atoms using various mixed anionic ligands. A series of linear trinickel complexes supported by two kinds of ligands, oligo-alpha-pyridylamido and sulfonyl amido/amido, were synthesized and their structures were determined by X-ray diffraction. T…
In this paper, we report on the magnetic properties of Ba2CoS3, a spin–chain compound recently found to be the first Co2+-containing one-dimensional sulfide to show metallic-like conductivity and negative magnetoresistance. We carried out an in-depth experimental investigation of the local structure of the cobalt atom…
The diffractive properties of gold films with a periodic lattice of sub-micron voids beneath the surface are investigated. It has been shown that nanoporous metal surfaces exhibit frequency-selective non-dispersive diffraction enhanced by Mie plasmons in nanovoids, which leads to absolute angular tolerance of the diff…
Using a one-pot approach employing true liquid crystal templating on neutral surfactants and simple metal salt precursors, mesostructured, mesoporous silicates have been prepared in which bimetallic nanoparticles are deposited; magnetic properties of PtCo systems so prepared are evaluated.
We report on the impregnation of THF solutions of the low-valent heterometallic cluster NEt(4)[Co(3)Ru(CO)(12)] into two mesoporous silica matrices, amorphous xerogels and ordered MCM-41, and a study of its thermal decomposition into metallic nanoparticles by X-ray diffraction, transmission electron microscopy and in…
Tin-doped indium oxide (ITO) films were deposited on the unheated alkali-free glass substrates (AN100) by reactive magnetron sputtering using an indium–tin alloy target with an unipolar pulsed power source feeding 50 kHz pulses and a plasma control unit (PCU) with a feed back system of oxygen plasma emission intensity…
The electrical properties of a novel, cross-linked polycarbosilane, which is thermally stable up to , were investigated as a potential interlayer dielectric for advanced interconnect technology. This polycarbosilane is derived from a cyclolinear precursor polymer, which was spin-coated from xylene solution and cured a…
Shape memory alloys possess the ability to return to a preset shape by undergoing a solid state phase transformation at a particular temperature. This work reports on the development and testing of a low temperature thermal conduction switch that incorporates a NiTiFe shape memory element for actuation. The switch was…
Preface. List of Authors. 1 Nanotechnology and Tissue Engineering: The Scaffold Based Approach (Lakshmi S. Nair, Subhabrata Bhattacharyya, and Cato T. Laurencin). 1.1 Overview. 1.2 Introduction. 1.3 The Importance of Scaffolds in Tissue Engineering. 1.4 Structure and Functions of Natural Extracellular Matrix. 1.5 Appl…
In this paper maleic anhydride grafted polypropylene, MAPP (GR-205) was used as a coupling agent for the PP-cellulose (derived from oil palm empty fruit bunch fiber) and PP-oil palm empty fruit bunch fiber (EFBF) biocomposites. Different sets of biocomposites were prepared by blending PP-cellulose and PP-EFBF at a fix…
According to X-ray single-crystal structure analysis, {[Cu(II)(en)2]2[Cu(I)2(CN)6]}[Cu(II)(en)2]2[Cu(I)(CN)3]2.2H2O contains copper in four different coordination environments: trigonal planar, square planar, square pyramidal and tetrahedral. The different coordination geometries of copper were investigated by quantum…
The reaction of sodium phenolate and Fe(HCTPPH)Br assembles a dimeric iron(III) complex with a channel-like solid state packing; the intramolecular iron-to-iron distance of 8.864 A is the longest among the available N-confused porphyrin dimeric complexes.
The synthesis of the first meso-meso linked core modified smaragdyrins with unusual single photon properties is reported.