Materials Literature
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An Anderson-type hexamolybdochromate(III) is found to be an effective catalyst for the selective oxidation of sulfides to their corresponding sulfones. The reaction was carried out in 60% aq. acetonitrile (v/v) using 30% H2O2 at 60°C. Various dialkyl, alkyl-aryl, and diaryl sulfides were selectively oxidized, giving h…
The reaction pathways for the gallium nitride GaN growth by gas phase reaction of trimethylgallium (TMG) with ammonia is studied theoretically. Water is the most important impurity in ammonia, therefore its reaction with TMG is investigated as a possible source of oxygen impurity in GaN. Gallium oxide (GaO) formed by…
Bottom-gate thin film transistors (TFTs) with a ZnMgO film as the channel layer were fabricated on thermally oxidized p-type silicon substrates by laser molecular beam epitaxy. The devices exhibit good electrical properties in dark with the current on/off ratio, threshold voltage and channel mobility of 10 5 , 6 V and…
In this work, a hybrid chromatography−crystallization separation process is suggested and is used to isolate and purify the antimalarial drug artemisinin from the Chinese medicinal herb Artemisia annua . Extraction of the aerial parts of A. annua by an organic solvent yielded a complex mixture of natural products. A h…
Blending polytetrafluorothylene (PTFE) to carbon fiber at different compositions was produced in a corotating twin screw extruder where PTFE acts as the polymer matrix and carbon fiber as the dispersed phase. The effects of carbon fiber content on mechanical and tribological properties of the composites were investiga…
Formation of void lattices is observed in a number of metals and alloys under high-energy particle bombardment. The conditions were derived for destabilisation of homogeneous void arrangement using an approach developed for the description of lane formation in pedestrian crowds. The model is based on the Foreman's mec…
p-aminobenzoic acid (PABA), a structural moiety of many commercial drugs, is self-assembled with linker alkyl side chains to form tubular nanostructures. The tubes exhibited fluorescence either intrinsic or from fluorescent molecules embedded in the wall during self-assembly. Uptake and inter-cellular delivery of the…
Antibodies are responsible for antigen recognition in vertebrate organisms. Practically any molecule can be bound by antibodies. In this work structures of 73 complexes of antibodies with small antigens were taken from PDB database and compared. The main epitope of studied ligands was an aromatic ring. Antibodies boun…
Abstract The transamination of 8‐( tert ‐butyldimethylsilylamino)quinoline with (thf) 2 Cr[N(SiMe 3 ) 2 ] 2 yields monomeric bis[8‐( tert ‐butyldimethylsilylamido)quinoline]chromium(II) ( 1 ). Similar reactions of M[N(SiMe 3 ) 2 ] 2 (M = Mn, Fe, Co) with 8‐(trialkylsilylamino)quinoline lead to the formation of monomer…
Self-cleaning transparent nanoporous films with high photocatalytic properties were obtained based on the self-assembly of TiO 2 nanoparticles synthesized by H 2 /O 2 combustion flames. Films were prepared from multilayer deposition of poly(sodium 4-styrenesulfonate)-treated TiO 2 nanoparticles and SiO 2 nanoparticles…
The aim of this work is to report on the influence of the presence of a magnetically hard layer with large thickness on the ferromagnetic resonance (FMR) behaviour of soft/hard biphase microwires. Such microwires consist of a FeSiB soft nucleus, an intermediate glass layer and a CoNi hard outer shell, and are prepared…
Norborn-5-ene-(N,N-dipyrid-2-yl)carbamide (M1) was copolymerized with exo,exo-[2-(3-ethoxycarbonyl-7-oxabicyclo[2.2.1]hept-5-en-2-carbonyloxy)ethyl]trimethylammonium iodide (M2) using the Schrock catalyst Mo(N-2,6-Me₂-C₆H₃)(CHCMe₂Ph)(OCMe(CF₃)₂)₂[Mo] to yield poly(M1-b-M2). In water, poly(M1-b-M2) forms micelles with…
Mesenchymal stem cell (MSC) infusion may reduce myocardial ischemic injury. TNF-alpha is a proinflammatory cytokine produced in large quantities during myocardial ischemia that can exert beneficial or detrimental effects on MSC function by binding to a 55-kd receptor (TNFR1) or a 75-kd receptor (TNFR2) on MSCs. We inv…
Summary Carob pekmez was stored at 5, 25, 35 and 45 °C for studying the reaction kinetics of nonenzymatic browning reactions. Hydroxymethylfurfural (HMF) formation, browning index (A420) and CIE (International Commission on Illumination) colour parameters were analysed to evaluate nonenzymatic browning reactions. HMF…
A locally isolated white rot fungus Ganoderma lucidum IBL-05 was used for development of a bioremediation process for original textile industry effluents. Dye-containing effluents of different colors were collected from the Arzoo (maroon), Ayesha (yellow), Ittemad (green), Crescent (navy blue) and Magna (yellowish) te…
Plants have been shown to possess a number of beneficial anticancer and immunomodulatory properties. In this study the possible in vitro antitumor activity and immunomodulatory effects of five species of Euphorbia, an important genus of Euphorbiaceae, including E. petiolata, E. hebecarpa, E. osyridea, E. microciadia,…
The aluminum nitride (AlN) was employed to prepare epoxy/AlN composites by blending-casting moulding method, two different coupling agents were used to functionalize the surface of AlN. The thermal conductivity and mechanical properties of the composites were investigated. And the cure kinetics of the EP/AlN composite…
Abstract The design of environmental‐effective energy conversion processes can be provided by exergoenviromental analysis which is a new method supporting the design for environment. It combines an exergy analysis with a life cycle assessment (LCA) to determine thermodynamic efficiency and formation of environmental i…
Analogously with Cu(In,Ga)Se 2 , CuInS 2 shows a high degree of spatial inhomogeneities in structural, optical and electronic properties on the length scale of grain sizes and above which is caused by the grainy structure and the inhomogeneous growth of absorber layers. To analyse these locally fluctuating magnitudes,…
A tetranuclear complex [Zn4(L)4(μ 2-L)2(OH)2(H2O)6] (1) and a trinuclear complex [Zn3(μ 2-L)6(H2O)2] (2) have been prepared by treatment of HL (HL = 3-(4-carboxyphenylhydrazono)pentane-2,4-dione) with ZnCl2· 2H2O or Zn(NO3)2· 6H2O in methanol solution, respectively. Both molecular structures have been characterized by…