Results 211 to 220 of about 335,229 (260)

Lipid oxidation and improving the oxidative stability

Chemical Society Reviews, 2010
Lipids are a major component of food and important structural and functional constituents of cells in biological systems. However, this diverse group of substances is prone to oxidation through various pathways. Their oxidative stability depends on a number of intrinsic and extrinsic factors, including the unsaturation of their fatty acids, composition
Fereidoon, Shahidi, Ying, Zhong
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Stabilization of zirconium oxide in aluminum oxide-zirconium oxide system by complex stabilizers

Journal of Engineering Physics and Thermophysics, 1996
Special features of stabilization of zirconium oxide in the aluminum oxide-zirconium oxide system using stabilizers of the yttrium oxide-magnesium oxide system are studied. Optimum regimes for dispersion of the initial components and for final sintering are determined.
V. M. Shelekhina, M. A. Isupov
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Trends in Stability of Perovskite Oxides

Angewandte Chemie International Edition, 2010
Perovskite oxides with general formula AMO3 have a large variety of applications as dielectrics and piezoelectrics, ferroelectrics and/or ferromagnetic materials, among others. Rare earth and alkaline earth metal perovskites are useful as catalysts for hydrogen generation, as oxidation catalysts for hydrocarbons, and as effective and inexpensive ...
Federico, Calle-Vallejo, José I, Martínez, Juan M, García-Lastra, Mogens, Mogensen, Jan, Rossmeisl   +4 more
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Oxidation Stability of Nanographite Materials

Advanced Energy Materials, 2013
Nanographite materials (NGMs), e.g., carbon nanotubes and graphene, have attracted great attention owing to their unique electronic and structural properties which make them promising for applications in Li-ion batteries, [ 1 ] functional composites, [ 2 ] fuel cells, [ 3 ] supercapacitors, [ 4 ] nano-electromechanical systems [ 5 ] and photovoltaic ...
Li, H., Cheng, N., Zheng, Y., Zhang, X., Lv, H., He, D., Pan, M., Kleitz, F., Qiao, S., Mu, S.   +9 more
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Stabilization of Tubulin by Deuterium Oxide

Biochemistry, 1999
Tubulin is an unstable protein when stored in solution and loses its ability to form microtubules rapidly. We have found that D2O stabilizes the protein against inactivation at both 4 and 37 degrees C. In H2O-based buffer, tubulin was completely inactivated after 40 h at 4 degrees C, but in buffer prepared in D2O, no activity was lost after 54 h ...
G, Chakrabarti, S, Kim, M L, Gupta, J S, Barton, R H, Himes   +4 more
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Stability of Procaine in Deuterium Oxide

Journal of Pharmaceutical Sciences, 1964
Stability of procaine in protium oxide and deuterium oxide was studied over the pH and "apparent" pH range 8 to 11. Studies were conducted at 40 and 100°.
F P, SIEGEL, F D, HITER, S V, SUSINA, M I, BLAKE   +3 more
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Preparation and stability of oxidized polyamines

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1971
Abstract The products arising from the oxidation of spermidine and spermine by serum amine oxidase have been purified by ion-exchange chromatography on columns of SE-Sephadex. Oxidized spermidine, dioxidized spermine, and mono-oxidized spermine prepared by this procedure were approx.
B W, Kimes, D R, Morris
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Stabilization of Pharmaceuticals to Oxidative Degradation

Pharmaceutical Development and Technology, 2002
A guide for stabilization of pharmaceuticals to oxidation is presented. Literature is presented with an attempt to be a ready source for data and recommendations for formulators. Liquid and solid dosage forms are discussed with options including formulation changes, additives, and packaging documented. In particular, selection of and methods for use of
Kenneth C, Waterman, Roger C, Adami, Karen M, Alsante, Jinyang, Hong, Margaret S, Landis, Franco, Lombardo, Christopher J, Roberts   +6 more
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Stabilization of elusive silicon oxides

Nature Chemistry, 2015
Molecular SiO2 and other simple silicon oxides have remained elusive despite the indispensable use of silicon dioxide materials in advanced electronic devices. Owing to the great reactivity of silicon-oxygen double bonds, as well as the low oxidation state of silicon atoms, the chemistry of simple silicon oxides is essentially unknown.
Yuzhong, Wang, Mingwei, Chen, Yaoming, Xie, Pingrong, Wei, Henry F, Schaefer, Paul von R, Schleyer, Gregory H, Robinson   +6 more
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Oxidative stability of polyaniline

Polymer Degradation and Stability, 2012
Abstract Standard globular and nanotubular polyaniline were exposed to strong oxidants, such as hydrogen peroxide or ammonium peroxydisulfate, in acidic, neutral, and alkaline aqueous media for 10 or 60 days. Even in the mixture of 30% hydrogen peroxide and concentrated sulfuric acid, polyaniline was not completely destroyed and left >30 wt.% residue.
Jaroslav Stejskal, Milena Exnerová, Zuzana Morávková, Miroslava Trchová, Jiřina Hromádková, Jan Prokeš   +5 more
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