Fullerene-C60, a carbon nanocompound, is considered a potential agent for photodynamic therapy owing to its distinctive physicochemical properties. It investigates the dynamics of intramolecular electron and energy transfer.

High affinity of fullerene core for electron donors determines its ability to be a scavenger of free radicals. On the other hand, C60 molecule is able to absorb effectively UV and visible light with further transition to the first singlet excited state, then to a long-lived triplet excited state and subsequent energy transfer to molecular oxygen-yielding singlet oxygen with quantum yield close to 100%[1].