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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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Singlet oxygen dimol-sensitized luminescence from thermally generated singlet oxygen
Journal of the American Chemical Society, 1993Delayed fluorescence (700 nm) of tetra-tert-butylphthalocyanine (Pc) can be sensitized by singlet oxygen generated by thermolysis of 1,4-dimethylnaphthalene endoperoxide. The initial intensity is proportional to the square of the initial concentration of the endoperoxide, and the apparent rate constants of its decay are twice those for singlet oxygen ...
Yulan Fu +2 more
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Singlet Molecular Oxygen Reactions with Nucleic Acids, Lipids, and Proteins.
Chemical Reviews, 2019Singlet oxygen (1O2) is a biologically relevant reactive oxygen species capable of efficiently reacting with cellular constituents. The resulting oxidatively generated damage to nucleic acids, membrane unsaturated lipids, and protein components has been ...
P. Di Mascio +5 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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Singlet Oxygen in DNA Nanotechnology
Accounts of Chemical Research, 2014CONSPECTUS: Singlet oxygen ((1)O2), the first excited electronic state of molecular oxygen, is a significant molecule, despite its minute size. For more than half a century, the molecule has been widely used and studied in organic synthesis, due to its characteristic oxygenation reactions. Furthermore, (1)O2 plays a key role in mechanisms of cell death,
Tørring, Thomas +3 more
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Lifetime and diffusion distance of singlet oxygen in air under everyday atmospheric conditions.
Physical Chemistry, Chemical Physics - PCCP, 2020Singlet oxygen is a toxic chemical but powerful oxidant, exploited in many chemical and biological applications. However, the lifetime of singlet oxygen in air under atmospheric conditions is yet to be known. This has limited safe usage of singlet oxygen
Kang Wang +8 more
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Chemically shifted singlet oxygen spectrum
Biochimica et Biophysica Acta (BBA) - General Subjects, 1978The estimated light emission spectrum was determined for a singlet oxygen (1O2)-producing system, NaOCl + H2O2, alone and in the presence of tryptophan and bovine serum albumin. Tryptophan and bovine serum albumin caused a decrease in the red emission of 1O2 and an increase in the amount of shorter wavelength light.
B R, Andersen, T F, Lint, A M, Brendzel
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Journal of Photochemistry, 1984
Abstract This survey of excitation processes for singlet O 2 in planetary atmospheres is intended to provide an introduction to the following papers in which laboratory investigations and field measurements are discussed in more detail. The three singlet states, a 1 Δ g , b 1 Σ g + and c 1 Σ u − , contribute to features in the airglows of ...
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Abstract This survey of excitation processes for singlet O 2 in planetary atmospheres is intended to provide an introduction to the following papers in which laboratory investigations and field measurements are discussed in more detail. The three singlet states, a 1 Δ g , b 1 Σ g + and c 1 Σ u − , contribute to features in the airglows of ...
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Singlet oxygen induced DNA damage
Mutation Research/DNAging, 1992Singlet oxygen generated by photoexcitation and by chemiexcitation selectively reacts with the guanine moiety in nucleosides (kq + kr about 5 x 10(6) M-1s-1) and in DNA. The oxidation products include 8-oxo-7-hydro-deoxyguanosine (8-oxodG; also called 8-hydroxydeoxyguanosine) and 2,6-diamino-4-hydroxy-5-formamidopyrimidine (FapyGua).
H, Sies, C F, Menck
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Singlet oxygen: Properties, generation, detection, and environmental applications.
Journal of Hazardous Materials, 2023Yue Wang +4 more
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