Topic
Vanadate
About: Vanadate is a research topic. Over the lifetime, 4497 publications have been published within this topic receiving 120109 citations. The topic is also known as: vanadate.
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TL;DR: All the results have been assembled into a model according to which the membrane-bound enzyme is an (alpha beta)2-dimer, and each alpha-peptide consists of five discrete and independent radiation-sensitive domains with specific functions in the enzymatic reactions catalyzed by the sodium pump.
48 citations
TL;DR: Upon addition of sarcoplasmic reticulum (SR), the line width of tetrameric vanadate signal of 51V-NMR spectra narrowed in the presence of ATP and Ca2+, whereas monomericVanadate line widths were broadened.
48 citations
TL;DR: Vanadate solutions as "metavanadate" (containing ortho and metavadate species) and "decavanadates" (5 mM; 1 mg/kg) were injected intraperitoneally in Halobatrachus didactylus (toadfish), in order to evaluate the contribution of decameric vanadates to vanadium intoxication on the cardiac tissue.
48 citations
TL;DR: The results indicate that vanadate stimulation of NAD(P)H oxidation by biomembranes is a consequence of vanadates stimulation of NadH or NMNH oxidation by O-2, rather than being due to the existence ofVanadate-stimulated NAD( P)H oxidases or dehydrogenases.
48 citations
TL;DR: In this article, the surface vanadia and surface vanadate species on sulfated supported vanadia catalysts were investigated with infrared and Raman spectroscopies, and it was shown that the vanadia species on these catalysts preferentially titrate basic hydroxyls, which consumes the sites capable of sulfate adsorption.
Abstract: The interactions between surface sulfate and surface vanadate species present on sulfated supported vanadia catalysts under dehydrated conditions have been investigated with infrared and Raman spectroscopies. The surface sulfate species present on sulfated TiO2, ZrO2, and Al2O3 supports and V2O5/TiO2, V2O5/ZrO2, and V2O5/Al2O3 catalysts have identical molecular structures, i.e., (M−O)3SO, where M = Ti, Zr, or Al. Interactions between the surface vanadia and surface sulfate species do not lead to the formation of sulfate−vanadate compounds. The surface sulfate species on the V2O5/TiO2, V2O5/ZrO2, and V2O5/Al2O3 catalysts anchor to and displace only the most basic support hydroxyls, while the surface vanadate species titrate both basic and neutral support hydroxyls forming a complete close-packed monolayer. At low V2O5 loadings, the surface vanadia species on these catalysts preferentially titrate basic hydroxyls, which consumes the sites capable of sulfate adsorption. Thus, the amount of adsorbed surface s...
48 citations