Photosensitized generation of singlet oxygen by the synthetic anthocyanin 7-methoxy-4-methyl-flavylium chloride (MMF) - Quina, Frank Herbert; Freitas, Adilson Alves de; Shimizu, Karina; Rettori, Daniel; Vautier-Giongo, Carolina; Miyamoto, Sayuri; Maçanita, Antonio L. (ICP2007 - International Conference on Photochemistry, 2007)