Non-covalent complexes of polycationic fullerene C60 derivative with xanthene dyes – Spectral and photochemical properties in water and in liposomes

摘要: Abstract By the use of absorption spectroscopy, steady-state and time resolved fluorimetry xanthene dyes fluorescein, eosin Y erythrosin B were shown to form complexes with polycationic fullerene derivative due electrostatic interactions in aqueous solution structure liposomes. It was found that singlet excited states are effectively quenched either excitation energy transfer or electron from state dye core. Photodynamic activity complex is much higher than as individual compounds. Photostability increases well. These effects allow predicting development a new generation hybrid photosensitizers. Noteworthy, one can only combination fullerene, which greatly enhances directional design such structures.