A
Alexander A. Krasnovsky
Researcher at Russian Academy of Sciences
Publications - 106
Citations - 2311
Alexander A. Krasnovsky is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Singlet oxygen & Phosphorescence. The author has an hindex of 26, co-authored 99 publications receiving 2154 citations. Previous affiliations of Alexander A. Krasnovsky include University of California, Los Angeles & Arizona State University.
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Journal ArticleDOI
Photoluminescence of singlet oxygen in pigment solutions
TL;DR: In this article, the luminescence of 1O2 (1270 nm) accompanying energy transfer to oxygen from photoexcited (triplet) molecules of sensitizers in air saturated solutions has been investigated.
Journal ArticleDOI
Rise and decay kinetics of photosensitized singlet oxygen luminescence in water. Measurements with nanosecond time-correlated single photon counting technique
S.Yu. Egorov,Valey Kamalov,Nikolai I. Koroteev,Alexander A. Krasnovsky,B.N. Toleutaev,S. V. Zinukov +5 more
TL;DR: In this paper, the rise and decay kinetics of singlet oxygen luminescence induced by flash laser excitation were measured with 10 ns resolution in aqueous solutions of tetra (p-sulfophenyl)porphyrin at various oxygen pressures.
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Effect of extraction and re-addition of manganese on light reactions of photosystem- II preparations.
TL;DR: New results from a thorough investigation of these effects reported here show that activity of the Mn-containing system in the donor side of PS II requires 4 Mn atoms, 2 of which can be replaced by either Mg2+ or some other divalent metal ions (M2+).
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Photophysical studies of pheophorbide a and pheophytin a. Phosphorescence and photosensitized singlet oxygen luminescence.
TL;DR: The data suggest that the photodynamic activity of the pigments in living tissues is probably determined by the monomeric pigment molecules formed in hydrophobic cellular structures.
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Quantum yield of photosensitized luminescence and radiative lifetime of singlet (1Δg) molecular oxygen in solutions
TL;DR: The absolute quantum yield of the photosensitized luminescence from 1ΔgO2 has been measured in air-saturated solutions of tetraphenylporphin in CCI4, the value (4.4 ± 1.3) × 10−3 being obtained as mentioned in this paper.