Fig. 4

Photoreactivity of nanoC₆₀GEM. a Quantum yield of singlet oxygen generation after irradiation by blue LED light by nanoC₆₀GEM with TMPyP used as the reference photosensitizer; b spin adduct signal (DMPO-OOH) that was formed in the absence and presence of an electron donor (0.5 mM NADH) after blue LED light irradiation; c 1270 nm luminescence observed in the absence and presence (100 µM) of bovine serum albumin