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Understanding of Oxygen Redox in the Oxygen Evolution Reaction
Advanced Materials, 2022AbstractThe electron‐transfer process during the oxygen evolution reaction (OER) often either proceeds solely via a metal redox chemistry (adsorbate evolution mechanism (AEM), with metal bands around the Fermi level) or an oxygen redox chemistry (lattice oxygen oxidation mechanism (LOM), with oxygen bands around the Fermi level).
Xiaopeng Wang +2 more
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Oxygen redox in LiNiO2 cathodes
Joule, 2023Assigning oxidation states and understanding the oxygen redox mechanism is crucial for designing superior cathode materials in lithium-ion batteries. The working mechanism of stoichiometric LiNiO2 has been regarded as Ni-dominant redox with partial O contribution through covalent Ni-O bonding for several decades. However, in this issue of Joule, Morris,
Dae-Hyung Lee +3 more
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Redox signaling in oxygen sensing by vessels
Respiratory Physiology & Neurobiology, 2002In response to the increase in oxygen tension at birth, the resistance pulmonary arteries dilate, while the ductus arteriosus constricts. Although modulated by the endothelium, these opposite responses are intrinsic to the vascular smooth muscle. While still controversial, it seems likely that during normoxia the production of reactive oxygen species ...
E Kenneth, Weir +3 more
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Oxygen sensing and oxidant/redox-related pathways
Biochemical and Biophysical Research Communications, 2004What is the nature of the oxygen sensor(s) and how do organisms sense variations in oxygen? A progressive rise of oxidative stress due to the altered reduction-oxidation (redox) homeostasis appears to be one of the hallmarks of the processes that regulate gene transcription.
John J Haddad
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The Nature of Oxidized Oxygen in Oxygen Redox Cathodes
Small MethodsAbstract Oxygen redox cathodes (ORCs) are expected to surpass the capacity limits of conventional batteries. However, the commercialization of ORCs has suffered from severe voltage decay due to irreversible structural reconstructions, which are related to the evolution of oxidized oxygen upon charging.
Yu‐Han Zhang +8 more
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On the Apparent Redox Reactivity of “Oxygen-Enriched Water”
Biological Trace Element Research, 2020Molecular oxygen-enriched water (OxEW) is advocated in popular media as useful for various health issues, presumably due to involvement of a purported antioxidant activity and to such notions as "active oxygen." To our knowledge, there are no explicit reports in the scientific literature where such redox reactivity would be described and explained ...
Cristina Pușcaș +4 more
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Oxygen free radicals and redox biology of organelles
Histochemistry and Cell Biology, 2004The presence and supposed roles of reactive oxygen species (ROS) were reported in literature in a myriad of instances. However, the breadth and depth of their involvement in cellular physiology and pathology, as well as their relationship to the redox environment can only be guessed from specialized reports. Whatever their circumstances of formation or
Leni, Moldovan, Nicanor I, Moldovan
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Reactive oxygen species in redox cancer therapy
Cancer Letters, 2015The role of reactive oxygen species (ROS) in cancer cells has been intensively studied for the past two decades. Cancer cells mostly have higher basal ROS levels than their normal counterparts. The induction of ROS has been shown to be associated with cancer development, metastasis, progression, and survival.
Lingying Tong +3 more
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Molecular Oxygen as a Redox Catalyst in Intramolecular Photocycloadditions of Coumarins
Angewandte Chemie International Edition, 2012Oxygen as a catalyst! While oxygen is usually excluded in nonoxidative photochemical reactions, the photocycloaddition of 3-(alk-4-en-1-yl)-substituted coumarins greatly benefits from the presence of O 2, which was shown to act as a redox catalyst, preferentially in combination with the common antioxidant 3,5-di-tert-butyl-4-hydroxytoluene (BHT ...
Kranz, Darius Paul +6 more
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Oxygen and redox-active drugs: Shared toxicity sites
Fundamental and Applied Toxicology, 1983Paraquat and nitrofurantoin can accept single electrons and, under appropriate conditions in tissues and cells, can pass these electrons to oxygen, thus participating in redox cycling. Similarities in the response of the target organ (the lung) and in subsequent pathology have also been observed among animals poisoned by oxygen and by these chemicals ...
O R, Brown, R L, Seither
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