Materials Literature
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We report a novel and facile approach to the preparation of hollow superparamagnetic magnetite/polystyrene nanocomposite microspheres by the interfacial polymerization technique. The polymerization is initiated by the free radicals at the surface of magnetite nanoparticles (MPs) which are located at the oil/water inte…
Enhancement of the Electrocatalytic Oxidation of Methanol at Pt ∕ Ru Nanoparticles Immobilized in Different WO3 Matrices, Barczuk, Piotr J., Tsuchiya, Hiroaki, Macak, Jan M., Schmuki, Patrik, Szymanska, Dorota, Makowski, Oktawian, Miecznikowski, Krzysztof, Kulesza, Pawel J.
Low temperature irradiation can significantly harden metallic materials and often lead to strain localization and ductility loss in deformation. This paper provides a review on the radiation effects on the deformation of metallic materials, focusing on microscopic and macroscopic strain localization phenomena. The typ…
Three new trinuclear complexes based on [Cu(Ln)]2+ (L1 = 1,5,8,12-tetramethyl-1,3,6,8,10,13-hexaazacyclotetradecane, L2 = 1,3-propanediamine (tn)) and [M(bpb)(CN)2]− (bpb2− = 1,2-bis(pyridine-2-carboxamido)benzenate, M = Fe or Cr) have been synthesized and characterized structurally and magnetically. The Cu(II) ions a…
Self-assembling particles were prepared by a new synthetic strategy for a raspberry-like aggregate, based on three-dimensional particle-aniline oligomer-particle repeated sequences; this one-step process, without the need for extra control, organic solvents, or ligand exchange, could further help in the realization of…
Selective aerobic oxidation of benzylic alcohols and of activated aromatic hydrocarbons occurs in supercritical CO2 as reaction medium using H5PV2Mo10O40 as a quasi-heterogeneous catalyst without further additives or co-solvents; efficient recycling is possible and no metal leaching is detectable in the product stream.
The goal of this study was to develop a systemically non-toxic and stable circulation based passive targeting system for efficient anticancer treatment. Gelatin-doxorubicin (GD) and PEGylated gelatin-doxorubicin (PGD) nanoparticles were designed and their feasibilities as an anti-cancer drug were evaluated. The sizes…
Crystallization kinetics of stable and metastable nitric acid trihydrate (NAT) were investigated by time dependent X-ray powder diffraction (XRD) measurements. Kinetic conversion curves were evaluated adopting the Avrami model. The growth and morphology of the respective crystallites were monitored in situ on the cryo…
Silver and gold nanoparticles are very efficient catalysts for the dimerization of methyl-radicals in aqueous solutions. The rate constants for the reaction of methyl-radicals with the gold and silver nanoparticles were measured and found to be 3.7 x 10(8) M(-1) s(-1) and 1.4 x 10(9) M(-1) s(-1), respectively. The res…
Nickel–multiwalled carbon nanotube (MWCNT) composite films were fabricated by an electrodeposition technique, and their microstructure and thermal conductivity were characterized. Nickel–MWCNT composite films with a homogeneous dispersion of MWCNTs throughout the nickel matrix free of any significant voids were electr…
Магнитные сплавы с памятью формы: фазовые переходы и функциональные свойства, Бучельников В.Д., Васильев А.Н., Коледов В.В., Таскаев С.В., Ховайло В.В., Шавров В.Г.
A series of compounds based on the carboxyl-terminal CAAL sequence of PGGTase-I substrates was designed and synthesized. Using piperazin-2-one as a semi-rigid scaffold, we have introduced critical pharmacophores in a well-defined arrangement to mimic the CAAL sequence. High potency and exceptional selectivity were obt…
The synthesis and characterization of octavinylsilsesquioxane (OVS)-based nanocomposite dendrimers with luminescent and charge transport properties are reported. The nanocomposite dendrimers were prepared in high yield using mild Heck chemistry of mono-haloaromatic compounds with the peripheral vinylsilane groups of O…
Polypyrrole (PPy) was deposited into nanostructured porous silicon (PS) layers by the electropolymerization of the corresponding pyrrole monomer in an acetonitrile solution. The potential or current transients recorded during the polymerization process exhibit different characteristic stages: preferential nucleation o…
Strongly adherent polyaniline coatings were electrochemically synthesized on mild steel from an aqueous salicylate medium. These coatings were characterized by cyclic voltammetry, UV-visible absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy. The extent of the corr…
Single phases of ( , 0.05, 0.1, 0.2, 0.3, 0.95) samples were prepared by the thermal decomposition of the corresponding nitrates. Their photoluminescence properties were investigated UV and VUV excitation. Two broad bands were observed in the excitation spectra of monitored at 613 nm. One centered at about 157 nm was…
We have studied the adsorptions of aqueous solutions of three kinds of surfactants, anionic (sodium dodecylbenzenesulfonate, SDBS), cationic (dodecyl trimethylammonium bromide, DTB) and a non-ionic (Triton X-100, TX-100), by chromium-containing leather waste. The results indicated that the anionic surfactant can be si…
Publisher Summary This chapter reviews the structural properties of disordered packings of equally sized spheres. It discusses and uncovers several specific features that are relevant for the understanding of the structure of amorphous systems. The most important concepts and the principal findings can be schematicall…
Many of the natural fibers offer excellent properties suitable for various applications in apparel and non-apparel areas. Spider silk is a filamentous natural protein fiber produced by the spiders. Dragline silk produced by the spider offers superior properties than many of the natural and synthetic fibers. The natura…
Ternary systems of inorganic Pt salts and oxides, ionic liquids and concentrated sulfuric acid are effective at catalyzing the direct, selective oxidation of methane to methanol and appear to be more water tolerant than the Catalytica reaction.