Materials Literature
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The first perfluorinated metal-free phthalocyanine exhibits a dome-like molecular distortion usually induced by large metal ions. Fluorine-lined channels account for ∼ 39% of the unit cell volume. The intermolecular interlocking of peripheral iso-perfluoroalkyl short-chains contributes to these features, which could b…
In this work, the agglomeration behavior of copper thin films after high temperature annealing was investigated. Cu (200 or 50 nm)/Ta (10 nm, or no Ta)/TaN (50 nm)/Ta (10 nm) layers were deposited onto (270 nm)/Si substrates by magnetron sputtering. All samples were annealed in vacuum at temperatures ranging from 400…
To clarify the interactions of liposomes with blood cells, this study examined the behaviour of liposomes of a range of compositions in the presence of purified human blood cells in buffer or plasma; or in whole blood, or in mice in vivo. Liposomes, labeled with the hydrophilic fluorochrome, carboxy fluorescein (CF),…
Abstract The effect of the surfactants glycerol monostearate (GMS), lecithin, diacetyl tartaric acid esters of monoglycerides (DATEM), polyoxyethylene sorbitan monostearate (PS-60) and sodium stearoyl-2-lactylate (SSL) on the rheological characteristics of dough and quality of parotta was studied. Use of the surfactan…
The synthesis and crystal structure of a dinuclear complex containing a μ-oxo(diferric) core and four O,N-coordinated o-iminobenzosemiquinonate(1−) π radical anions, [FeIII2(μ-O)(t-buLISQ)4], is described; its electronic structure is best described as comprising two FeIII(LISQ)2 halves with S* = 3/2 (SFe = 5/2 coupled…
Interfacial reactions of Ta with a Si–O–C low-dielectric constant (low-k) material and Cu/Ta/Si–O–C multilayers are investigated using x-ray photoelectron spectroscopy (XPS) and cross-sectional transmission electron microscopy (TEM). Data indicate that Ta deposition on the low-k substrate results in the initial format…
Al-substituted coprecipitated with the additives and was prepared by a complexation-coprecipitation method. The physical properties of Al-substituted samples containing different amounts of or were examined by X-ray diffraction, AES and ICP. The effects of and on the electrochemical performance of Al-substituted such…
The reactions of manganocene, Cp2Mn (Cp = C5H5), with 2-aminopyrimidines give similar, octameric amido/imido cage complexes of general formulae [{CpMnNHR}{MnNR}]4 [R = 4,6-Me2pm (1a), 4-MeO-6-Mepm (1b), 4,6-(MeO)2pm (1c); pm = pyrimidinyl]. The structures of these complexes can be visualised as being composed of centr…
Silicone has a relatively high coefficient of friction and silicone medical devices therefore lack inherent lubricity, leading to pain on device insertion and potential tissue trauma. In this study, higher molecular weight tetra(alkoxy)silanes, particularly tetra(oleyloxy)silane, have been used as crosslinkers in the…
Empirical Ligand Field Molecular Mechanics (LFMM) parameters for CoIII–F and CoIII–CN bonds are developed from Density Functional Theory (DFT) calculations on octahedral [CoF6]3− and [Co(CN)6]3−. In addition to the 5T2g and 1A1g ground states of [CoF6]3− and [Co(CN)6]3− respectively, DFT can also access the low-spin f…
Phenylene–2,5-dimethylpyrazinyl co-oligomers and a dipyridylpyrazine derivative have been synthesised by Suzuki cross-coupling reactions starting from 2,5-dibromo-3,6-dimethylpyrazine. X-Ray crystal structures are reported for two teraryl derivatives, viz. 2,5-bis(2-methoxyphenyl)-3,6-dimethylpyrazine 2 and 2,5-bis(6-…
Dedicated for energy storage, supercapacitors offer new solutions in various applications. This contribution describes briefly main principles of supercapacitors, basics for the design of a supercapacitive tank, and the needed power electronics developments linked to the use of these new components. Typical applicatio…
A large fraction of automotive components made of hardened powder-metallurgy steels are subject to finish-turning before final assembly. Because of a characteristically poor machinability and high surface finish requirements, the conventional P/M turning operations usually require the use of flood-cooled polycrystalli…
Abstract Polypropylene (PP)/poly(ethylene terephthalate) (PET) bicomponent (bico) fibres are successfully melt blown in the Reicofil® meltblown (MB) pilot line commissioned at the Textiles and Nonwovens Development Center (TANDEC), the University of Tennessee, Knoxville. The bico fibers possess a cross‐sectional side‐…
The problem of scattering of electromagnetic plane waves by one-dimensional (1D) periodic dielectric gratings, under the most general condition of oblique incidence (3D incidence), is rigorously solved. A recently developed vectorial modal method for obtaining the modal spectrum of 1D dielectric periodic guiding media…
Abstract A study was made on a isothermal process for the crystallization of potassium sulfate as an alternative to the cooling process. The process employs addition of 1‐propanol to aqueous salt solutions to achieve the “saltingout” of the K 2 SO 4 . This work was carried out using an automated Mettler Toledo model R…
The results of our investigations show that on an untreated flat substrate, the discotic liquid crystals align side-on (or homeotropically) if the sample is slowly cooled from the isotropic phase. If the sample is kept in the glassy or crystalline state for several hours, the alignment inevitably changes to edge-on (p…
In order to understand more clearly the nature of the anodic film formed on aluminum and its alloys, and the mechanism of inhibition of corrosion by chromates, a novel investigation has been made on the anodic film formed on AA1060 using X-ray photoelectron spectroscopy. The goal has been to elucidate whether the inte…
Hydroxyapatite (HAp) crystals were grown on the surface of a cellulose matrix previously modified using titanium isopropoxide (TIPO). This modification provides the appropriate labile chemical groups to grow HAp: the primary hydroxyl of cellulose, the most reactive of the three groups, has not enough reactivity to gro…
The presence of strong acid sites on a metal oxide support results in a reaction of adsorbed NH4+ species in a flow of NO + O2, which is a N2O free pathway in selective catalytic reduction of NO by H2 over supported Pt catalysts.