Results 241 to 250 of about 3,600,170 (298)

Oxidation on Metal Oxide Surfaces

1968
The redn. of transition metal oxides and of SnO2 + Sb2O3 by 1-butene and butadiene was investigated. A single parameter Qo, defined as the heat necessary to dissociate 0.5 O2 from the oxide, detd. the type of reaction. Starting from Q0 = 17 (MnO2) and proceeding to Q0 = 70 (SnO2), the redn. produces; CO2 -> (oxygenated products) -> butadiene ->
Simons, T.G.J., Verheijen, E.J.M., Batist, P.A., Schuit, G.C.A.   +3 more
openaire   +2 more sources

Oxidant signals and oxidative stress

Current Opinion in Cell Biology, 2003
Although oxidants clearly possess the capacity to behave in a random and destructive fashion, growing evidence suggests that in many instances the production of reactive oxygen species is tightly regulated and their downstream targets exquisitely specific.
openaire   +2 more sources

Oxidative Stress

Annual Review of Biochemistry, 2017
Oxidative stress is two sided: Whereas excessive oxidant challenge causes damage to biomolecules, maintenance of a physiological level of oxidant challenge, termed oxidative eustress, is essential for governing life processes through redox signaling.
Helmut, Sies, Carsten, Berndt, Dean P, Jones   +2 more
openaire   +2 more sources

Modelling oxide–oxide and oxide–metal interfaces

J. Chem. Soc., Faraday Trans., 1990
Recent years have seen a large increase in interest in interfaces of ionic and ceramic crystals and an appreciation of their importance in determining many of the properties of materials. Static-lattice calculations have made a major impact on the interpretation of the role of point defects in controlling observed behaviour in the bulk and are now ...
openaire   +1 more source

Protein Oxidation

Annals of the New York Academy of Sciences, 2000
Abstract: The oxidative modification of proteins by reactive species, especially reactive oxygen species, is implicated in the etiology or progression of a panoply of disorders and diseases. These reactive species form through a large number of physiological and non‐physiological reactions.
E R, Stadtman, R L, Levine
openaire   +2 more sources

Oxidized lipoproteins

Baillière's Clinical Endocrinology and Metabolism, 1995
The understanding of the role of lipoprotein oxidation is still incomplete. Much is still to be learned about the mechanism of action of oxidized lipoproteins on different types of cell, as well as the origin of the oxidation process, and how it links to the situation in vivo.
openaire   +2 more sources

Oxidative Metabolism

Annals of the New York Academy of Sciences, 2000
Abstract: There is a large body of evidence showing both metabolic defects and oxidative damage in Alzheimer's disease. Studies of cybrid cell lines show reduced cytochrome oxidase. There is also substantial evidence for a defect in a‐ketoglutarate dehydrogenase.
openaire   +2 more sources

Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides

Science, 2001
R. Asahi, T. Morikawa, T. Ohwaki, Koyu Aoki, Y. Taga   +4 more
semanticscholar   +1 more source

Nano-sized transition-metal oxides as negative-electrode materials for lithium-ion batteries

Nature, 2000
P. Poizot, S. Laruelle, S. Grugeon, L. Dupont, J. Tarascon   +4 more
semanticscholar   +1 more source

Covalency competition dominates the water oxidation structure–activity relationship on spinel oxides

Nature Catalysis, 2020
Yuanmiao Sun, Hanbin Liao, Jiarui Wang, Bo Chen, Shengnan Sun, S. Ong, S. Xi, C. Diao, Yonghua Du, Jia‐Ou Wang, M. Breese, Shuzhou Li, Hua Zhang, Zhichuan J. Xu   +13 more
semanticscholar   +1 more source