Materials Literature
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It is necessary to use small molecule contrast agents (CAs) to generate a good contrast in images produced with magnetic resonance imaging (MRI) for the proper diagnosis and monitoring of diseases. Small molecule CAs improve the contrast of only the intravascular tissues, do not cross biological barriers such as the b…
Abstract Review: 109 refs.
According to recent investigations, the parenteral application of ascorbic acid (vitamin C) at high doses has significant antitumor activity in in vitro assays. The goal of our experiment was to determine the possible potentiating effect of application of high dose pH-neutralized ascorbic acid to the normal oncothermi…
The advent of high energy, high power fiber lasers hinges on the availability of new fibers and suitable cladding materials. New fiber materials with the needed thermal and optical properties are urgently needed for high powered fiber lasers; a viable cladding process using suitable cladding materials is equally criti…
In this work, a commercially available Styrene-Isoprene-Styrene (SIS)triblock copolymer was modified into epoxidised version (ESIS)using performic acid generated in situ from hydrogen peroxide and formic acid. The epoxidised sample was further acrylated to prepare acrylated version (ASIS). The nanocomposites of each s…
Abstract Solvothermal reactions of 2‐phenyl‐4‐quinolinecarboxylic acid (Hpqba) with CdII, CoII, ZnII and/or 4,4′‐bipyridyl (4,4′‐bipy), 1,4‐bis(imidazol‐1‐ylmethyl)benzene (biyb), 2,2′‐bipyridyl (2,2′‐bipy) afford three new coordination compounds of stoichiometries [Cd(pqba)2(4,4′‐bipy)] (1), [Zn(pqba)2biyb] (2), and…
(1)H NMR spectra of the paramagnetic cyanide-bridged mixed-valence compound [(η(5)-C5H5)Fe(CO)2(μ-CN)Ru(NH3)5](CF3SO3)3 (I) have been obtained in several solvents. When traces of partially deuterated water are present, instead of a single cyclopentadienyl (Cp) resonance shifted by the hyperfine interaction, numerous w…
The spectroscopic properties of Ho3+-doped YVO4 were studied at cryogenic and room temperatures in the 2 μm spectral region to clarify recent observations of efficient dual-wavelength laser operation in this material. Polarized absorption cross sections were measured, and stimulated emission cross sections were determ…
A single phase of β-FeSe was obtained under Se-rich conditions (β-FeSey: y ≧ 1.15) using pulsed laser deposition. The excess Se content in the layers resulted in a decrease of the unit cell volume owing to the nonstoichiometric composition. However, β-FeSey layers did not show any remarkable change of magnetic propert…
Copper-Zinc-Tin-Sulfide (CZTS), a promising material for absorber layer application in thin film solar cells, has been synthesized in aqueous media by microwave irradiation technique. Compared to conventional synthesis methods, microwave irradiation is highly efficient, reliable, and less time consuming. The synthesiz…
Single crystals of [(R)-C5H14N2][Cu(SO4)2(H2O)4]·2H2O (1) were grown through the slow evaporation of a solution containing H2SO4, (R)-C5H12N2 and CuSO4·5H2O. These crystals spontaneously transform to [(R)-C5H14N2]2[Cu(H2O)6](SO4)3 (2) over the course of four days at room temperature. The same single crystal on the sam…
Abstract We report the case of a 64‐year‐old man who had a permanent pacemaker with a unipolar silicone electrode positioned in the right ventricle in 1989 for sinus node dysfunction. On a routine checkup in June 2011, a 28‐mm‐diameter mass was discovered, which appeared to adhere to the tricuspid valve and the ventri…
The influence of structural changes caused by irradiation with different ions, their energies and fluences on sorption properties has been investigated. Results suggest that there are several mechanisms of desorption depending on defect concentration, their interaction and ordering. It has been also demonstrated that…
A series of novel optically active poly(ester‐imide)s (ter‐PEIs) with high glass transition temperature (Tg), good thermal stability, and solubility were successfully designed and synthesized by direct polycondensation reactions, using p‐hydroxybenzoic acid (PHB), 4,4’‐dihydroxybenzophenone, and a chiral diacid, N,N'‐…
Hydrogenated microcrystalline silicon (μc-Si:H) thin films were prepared by remote low frequency inductively coupled plasma (ICP) chemical vapor deposition system, and the effect of silane/hydrogen ratio on the microstructure and electrical properties of μc-Si:H films was systematically investigated. As silane/hydroge…
The deformation and fracture behaviour of Ostrich's eggs at the static compression has been investigated. The mechanical properties of egg to compression were determined in terms of average rupture force, specific deformation and rupture energy along X and Z axes. Exact description of the eggshell counter shape has be…
Being important for the antiresonance frequency tuning of tunable thin Film Bulk Acoustic wave Resonators (FBARs), the non-linear electrostrictive coefficient was for the first time calculated for BaTiO3 and SrTiO3 using ab initio methods. Further, taking into account the small difference of obtained values for BaTiO3…
Abstract Review: 76 refs.
Well-defined core–shell Fe3O4@poly 4-vinylpyridine-co-divinyl benzene (Fe3O4@P(4VP-DVB)) magnetic polymer microspheres have been synthesized with the aid of strong hydrogen-bond interactions between magnetic cores and functional monomers, as reported by Ge Wang et al. in their Full Paper on page 1160 ff. Au nanopartic…
Abstract Well-defined six-armed amphiphilic star polymers (TP-C0-PMAPEG)s and (TP-C5-PMAPEG)s bearing a triphenylene core were designed as dispersants of carbon nanotubes, and synthesized via controlled radical polymerization. It was found that these star polymers were capable of forming stable dispersions of single-w…