Role of oxygen in the phototoxicity of phthalocyanines.

@article{Rosenthal1995RoleOO,
  title={Role of oxygen in the phototoxicity of phthalocyanines.},
  author={Illia Rosenthal and EHUD BEN-HUR},
  journal={International journal of radiation biology},
  year={1995},
  volume={67 1},
  pages={85-91}
}
The presence of molecular oxygen is a determinant in the phototoxicity of phthalocyanines, and photosensitized oxidation is the accepted chemical mechanism for photo-dynamic action. However, it is difficult to establish whether the process is initiated by a type I electron transfer, or by a type II energy transfer reaction to form singlet oxygen. Usually, the involvement of singlet oxygen in photodamage has been indicated by the inhibition of the biological effect by a competitive physical or… CONTINUE READING
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