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Singlet Oxygen in Photosensitization
Journal of Environmental Pathology, Toxicology and Oncology, 2006Oxygen is a ubiquitous element and a vitally important substance for life on the Earth, and especially for human life. Living organisms need oxygen for most, if not all, of their cellular functions. On the other hand, oxygen can produce metabolites that are toxic and potentially lethal to the same cells.
Johan, Moan, Petras, Juzenas
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Singlet oxygen quantum yields determined by oxygen consumption
Journal of Photochemistry and Photobiology A: Chemistry, 2019 Quantifying singlet oxygen production from triplet photosensitizers typically requires spectroscopic techniques and specialty chemical traps. Herein we describe a novel method for determining the singlet oxygen quantum yield (фΔ) of photosensitizers. The
Sam S Rickenbach +2 more
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Genotoxicity of singlet oxygen
Chemico-Biological Interactions, 1991Singlet oxygen, 1O2 (1 delta g), fulfills essential prerequisites for a genotoxic substance, like hydroxyl radicals and other oxygen radicals: it can react efficiently with DNA and it can be generated inside cells, e.g. by photosensitization and enzymatic oxidation.
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A singlet oxygen photosensitizer enables photoluminescent monitoring of singlet oxygen doses
Chemical Communications, 2016Dichromophoric molecular dyad enables photosensitization and detection of sinlget oxygen.
Youngmin, You +4 more
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Oxygenation of Benzyldimethylamine by Singlet Oxygen. Products and Mechanism
Organic Letters, 2004[reaction: see text] A product study of the reaction of benzyldimethylamine (1) with thermally and photochemically generated 1O2 in MeCN was carried out. Benzaldehyde and N-benzyl-N-methylformamide are the reaction products, oxygenation representing ca. 9% of the overall quenching of 1O2 by 1.
Baciocchi E. +2 more
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THE SINGLET OXYGEN REACTIVITY OF BILIVERDIN
Photochemistry and Photobiology, 1977Abstract— In 1, 1, 2‐trichlorotrifluoroethane solution biliverdin physically quenches singlet oxygen at a rate of 8 × l0sM‐1s‐1 and reacts chemically at 6 × 10 5M‐1s‐1 to give a red product. In D, O solution the rate constants are PD dependent and range from 1.5–6 times 1010M‐1s‐1 for quenching and the chemical rate varies from 3–5 × 108 M‐1 s‐1 to ...
I B, Matheson, M M, Toledo
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Singlet oxygen photosensitisation by the fluorescent probe Singlet Oxygen Sensor Green®
Chemical Communications, 2009The fluorescent probe Singlet Oxygen Sensor Green is able to produce singlet oxygen under exposure to UV or visible radiation.
Xavier, Ragàs +4 more
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Singlet oxygen and biological systems
Chemico-Biological Interactions, 1971Abstract Singlet oxygen is receiving increasing attention as a reactive species in many chemical and biological systems. It can be generated easily by microwave discharge, chemically or by photosensitized irradiation and also is found to be a common reactive atmospheric pollutant generated by solar radiation.
I R, Politzer +2 more
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Intramolecular Transfer of Singlet Oxygen
Journal of the American Chemical Society, 2015The intramolecular transfer of energy (FRET) and electrons (Dexter) are of great interest for the scientific community and are well-understood. In contrast, the intramolecular transfer of singlet oxygen ((1)O2), a reactive and short-lived oxygen species, has until now been unknown. This process would be very interesting because (1)O2 plays an important
Klaper, Matthias +1 more
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Singlet oxygen oxidation of foods
Critical Reviews in Food Science and Nutrition, 1992(1992). Singlet oxygen oxidation of foods. Critical Reviews in Food Science and Nutrition: Vol. 31, No. 3, pp. 211-236.
D G, Bradley, D B, Min
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