Photochemical Properties of Octaphenyl-Substituted Erbium Phthalocyanineстатья
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Дата последнего поиска статьи во внешних источниках: 11 мая 2022 г.
Аннотация:The spectral-kinetic characteristics of the singlet and triplet excited states of octaphenyl-substituted erbium phthalocyanine are established. It is shown that the compound has high values of the quantum yields of fluorescence (0.50) and singlet oxygen (0.43). The lifetimes of the excited singlet (4.9 ns) and triplet states (1.4 ms) are determined. The binding constant of phthalocyanine to bovine serum albumin (5.5 × 106 M–1) is calculated, indicating the effective binding of the test substance to albumin. The predominant accumulation of the dye in the cell cytoplasm on the model colon adenocarcinoma cell line (HCT116 cell line) is established. The localization of phthalocyanine in mitochondria and structures of the endoplasmic reticulum is established by confocal microscopy.