Photodynamic Therapy Mediated by Fullerenes and their Derivatives
2 Synthesis of fullerene derivatives
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Cationic functional groups are generally considered as the addend of choice for attachment on the fullerene cage due to their potential surface binding contact with anionic residues of the bacteria cell wall via static charge interactions. A systematic trend to increase the number of positive charges per fullerene cage was observed in the recent report  to maximize such interactions and use them as the approach for targeting bacteria having a significant density of anionic residues at the cell wall surface. A number of chemical functionalization methods of fullerenes have been reviewed [59–62]. Among them, common convenient methods for the...