The placement of bone–level dental implants can lead to the detachment particles in surrounding tissues due friction with cortical bone. In this study, 60 were placed same design: 30 made commercially pure grade 4 titanium and Ti6Al4V alloy. These cow ribs following company’s protocols. Particles detached from isolated their size specific surface area characterized. irregular morphology was obs...

The interaction of vanadium with TiO2(110) surface was studied with metastable impact electron spectroscopy (MIES) and ultraviolet photoelectron spectroscopy (UPS) under ultrahigh vacuum (UHV) conditions. A strong interaction between vanadium and TiO2 is observed with the addition of the first vanadium layer. Adsorption and reaction of ethanol to ethylene were investigated with MIES, UPS and te...

Cross-linked and quaternized pine sawdust was tested for vanadium removal from a synthetic aqueous solution as well as from real industrial wastewater which had a considerable amount of vanadium and other ions such as sulphate, ammonium and nickel. The maximum vanadium sorption capacity of the modified pine sawdust was found to be 130 mg/g in synthetic solution and 103 mg/g in real wastewater. ...

A vanadium oxide-carbon nanotube composite was prepared by solution-based hydrolysis of NH4VO3 in the presence of carbon nanotubes. The carbon nanotubes induce the nucleation of the 1D vanadium oxide nanostructures, with the nuclei growing into long freestanding nanorods. The vanadium oxide nanorods with the lengths up to 20 μm and the widths of 5–15 nm exhibit a well-ordered crystalline struct...

This paper discusses how the activity and expression of cyclooxygenases are influenced by vanadium compounds at anticancer concentrations and recorded in inorganic vanadium poisonings. We refer mainly to the effects of vanadate (orthovanadate), vanadyl and pervanadate ions; the main focus is placed on their impact on intracellular signaling. We describe the exact mechanism of the effect of vana...

The study of existing energy-saving materials and obtaining the new ones for reducing cost hydrogen production, is relevant modern energy industry. Such properties can be predicted containing vanadium, molybdenum, tungsten exhibiting catalytic activity evolution reaction Aforementioned metals co-deposited from aqueous solutions with iron subgroup metal-catalysts through formation cluster interm...

A solid-phase diffusion welding of coarse-grained and ultrafine-grained (UFG) specimens titanium near-α alloy Ti-5Al-2V used in nuclear power engineering was made by Spark Plasma Sintering. The failure the welded conditions hot salt corrosion electrochemical shown to have a preferentially intercrystalline character. In case presence macrodefects, crevice joints observed. resistance alloys again...

The purpose of this study was to define the toxic effects of vanadium on thymic development in broilers fed on diets supplemented with 0, 5, 15, 30, 45 and 60 mg/kg of vanadium for 42 days. We examined the changes of relative weigh, cell cycle phase, apoptotic cells, and protein expression of Bcl-2, Bax, and caspase-3 in the thymus by the methods of flow cytometry, TUNEL (terminal-deoxynucleoti...

Lithium and Lithium-ion batteries for portable electronic devices and hybrid electric vehicles have gained great importance for energy storage today. However, how to prepare cathode materials with higher energy density, high potentials, and longer cycle life is still a challenge. Compared with commercial LiCoO2, vanadium oxides have higher specific capacity and interesting layered structures, w...

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