نتایج جستجو برای: cobalt zinc
تعداد نتایج: 102111 فیلتر نتایج به سال:
Electrochemical water splitting requires new, low-cost cathode electrodes for the hydrogen evolution reaction to enable worldwide implementation of electrolyzers. Cobalt borides are proposed as one most promising materials overcome limitations commercial electrocatalysts, but catalytic activity still needs be improved competitive. Here, we report that introduction zinc into cobalt boride produc...
Heavy metal pollutionis one of the largest problems in the Environment and human being. In industrial and urban areas trees can give better quantifications for pollutant concentrations and atmospheric deposition than non-biological samples. In order to know ability of Fraxinus excelsior (Ash tree) to reduce the concentrations of heavy metals and compared with the concentration of thes...
Background and Objective: Heavy metals contaminations are readily bioaccumulated in aquatic systems and lead to increased concentrations in food chains, posing a serious threat to human health, water-related organisms and aquatic ecosystems. The purpose of the present study was to determine the concentration of heavy metals in surface sediments of CheshmehKile River, to evaluate environmental a...
Magnetic nanoparticles of cobalt-zinc ferrite (Co0.5Zn0.5Fe2O4) have been synthesized in a homogeneous aqueous solution at room temperature by co-precipitation method without any template and subsequent heat treatment. Synthesis of material is confirmed using XRD from the report of single phase polycrystalline ferrite material and also determined lattice constant. Atomic absorption spectrophoto...
Hematopoiesis is a complex process that requires specific set of blood components to function properly. Blood diseases can result from imbalances or deficiencies in these components. The body has physiological sensors respond environmental changes by maintaining elemental homeostasis. A deficiency one micronutrient lead others. purpose this study was investigate the role and interaction copper,...
Activated carbon from sawdust was produced with an environmentally friendly process involving single-stage carbonization and activation steam at 800°C. Production is scalable because lignocellulosic biomass ubiquitous worldwide as a waste or virgin material. Single-stage production without any cooling steps between easier in larger scale production. Monometal adsorption multimetal of cobalt, ni...
Novel cobalt(II) containing compounds of tris-(2-pyridinylene-N-oxide)triaminoguanidine ligands are presented: a supramolecular metallocycle and an one-dimensional coordination polymer. Analog zinc(II) complexes show similar to identical structures that slightly influenced by different preferences regarding the number. Magnetic measurements revealed predominantly antiferromagnetic exchange inte...
Summary Wild type human full length (f.1.) tumor suppressor p53 protein binds preferentially to super-coiled (sc) DNA in vitro both in the presence and absence of the p53 consensus sequence (p53CON). This binding produces a ladder of retarded bands on the agarose gel. Bands revealed by immunoblotting with antibody DO-1 corresponded to the ethidium stained retarded bands. The intensity and the...
Ferromagentic semiconductors have been actively pursued because of their potential as spin polarized carrier sources and easy integration into semiconductor technology. One such material, ZnO has been shown to be a potential Diluted Magnetic Semiconductor (DMS). The appearance of ferromagnetism, however, is found to be sensitive to the processing conditions. We report synthesis of ZnO nanoparti...
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