Characterizing some photophysical, photochemical and photobiological properties of photosensitizing anthraquinones

L.R. COMINI; S.C. NÚÑEZ MONTOYA; M. SARMIENTO; J.L. CABRERA; G.A. ARGÜELLO

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

Elsevier

Año: 2007 vol. 188 p. 185 - 185

1010-6030

font face="Times-Roman" size="1"> Some photophysical, photochemical and photobiological properties of nine anthraquinones (AQs) isolated from a phototoxic plant, Heterophyllaea pustulata, were studied. The photosensitized generation of superoxide anion radical (O2•−) and singlet molecular oxygen (1O2) by three of the nine AQs, namely heterophylline, pustuline and 5,5-bisoranjidiol was evaluated. Whereas the O2•−