Results 21 to 30 of about 170,894 (344)

Erythrocuprein and singlet oxygen

open access: yesFEBS Letters, 1972
McCord and Fridovich [ 1,2] have shown that erythrocuprein, the copper and zinc containing protein extracted from red blood cells, can enzymatically disproportionate superoxide radicals (Oh), an intermediate of the reduction of oxygen, the generation of which in some Ha 0s -producing biological oxidations has been demonstrated [3].
Agro', Alessandro Finazzi   +5 more
openaire   +2 more sources

The photochemistry and photophysics of a series of alpha octa(alkyl-substituted) silicon, zinc and palladium phthalocyanines [PDF]

open access: yes, 2013
Photophysical and photochemical measurements have been made on a series of novel alpha octa(alkyl-substituted) silicon, zinc and palladium phthalocyanines for which the synthesis is outlined.
Ashworth, Stephen H.   +3 more
core   +1 more source

Singlet oxygen generation as a major cause for parasitic reactions during cycling of aprotic lithium-oxygen batteries [PDF]

open access: yes, 2017
Non-aqueous metal–oxygen batteries depend critically on the reversible formation/decomposition of metal oxides on cycling. Irreversible parasitic reactions cause poor rechargeability, efficiency, and cycle life, and have predominantly been ascribed to ...
Borisov, Sergey   +12 more
core   +3 more sources

New Halogenated Phenylbacteriochlorins and Their Efficiency in Singlet-Oxygen Sensitization [PDF]

open access: yes, 2002
Halogenated phenylbacteriochlorins are synthesized with high yields in a two-step procedure. They have strong absorbances in the red and are very stable to air and light at room temperature.
Arnaut, Luís G.   +4 more
core   +1 more source

A mechanistic study on the phototoxicity of atorvastatin: singlet oxygen generation by a phenanthrene-like photoproduct [PDF]

open access: yes, 2009
Atorvastatin calcium (ATV) is one of the most frequently prescribed drugs worldwide. Among the adverse effects observed for this lipid-lowering agent, clinical cases of cutaneous adverse reactions have been reported and associated with photosensitivity ...
IESCE, MARIA ROSARIA   +4 more
core   +1 more source

Oxidation of Catalase by Singlet Oxygen [PDF]

open access: yesJournal of Biological Chemistry, 1998
Different bands of catalase activity in zymograms (Cat-1a-Cat-1e) appear during Neurospora crassa development and under stress conditions. Here we demonstrate that singlet oxygen modifies Cat-1a, giving rise to a sequential shift in electrophoretic mobility, similar to the one observed in vivo. Purified Cat-1a was modified with singlet oxygen generated
F, Lledías, P, Rangel, W, Hansberg
openaire   +2 more sources

Intercellular singlet oxygen-mediated bystander signaling triggered by long-lived species of cold atmospheric plasma and plasma-activated medium

open access: yesRedox Biology, 2019
Treatment of tumor cells with H2O2 and nitrite, two long-lived species derived from cold atmospheric plasma, induces a complex autoamplificatory, singlet oxygen-mediated process, which leads to catalase inactivation and reactivation of intercellular ...
Georg Bauer
doaj   +1 more source

SINGLET OXYGEN DETECTION DURING PHOTOSENSITIZATION [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2013
Singlet oxygen (1O2) is a highly reactive oxygen species involved in numerous chemical and photochemical reactions in different biological systems and in particular, in photodynamic therapy (PDT).
BUHONG LI   +4 more
doaj   +1 more source

Generation of singlet oxygen via iron-dependent lipid peroxidation and its role in Ferroptosis

open access: yesFundamental Research, 2022
Ferroptosis is a cell death pathway mediated by iron-dependent accumulation of lipid peroxide. However, the specific downstream molecular events of iron-dependent lipid peroxidation are yet to be elucidated.
Xiaofei Zhang   +4 more
doaj   +1 more source

Photochemical behavior of the drug atorvastatin in water. [PDF]

open access: yes, 2006
Atorvastatin undergoes a self-sensitized photooxygenation by sunlight in water. The main photoproducts, isolated by chromatographic techniques, have been identified by spectroscopic means.
CERMOLA, FLAVIO   +5 more
core   +1 more source

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