Fig. 10. Chemical structures of photosensitizers used in antimicrobial applications.
These molecules possess either constitutive cationic charges or basic amino groups. Toluidine blue O (TBO), cationic fullerene (BF6), cationic porphyrin (XF73), meso-mono-phenyl-tri(N-methyl-4-pyridyl)-porphyrin (Sylsens B), polyethylenimine chlorin(e6) conjugate (PEI-ce6), cationic phthalocyanine (RLP068), selenium benzo(A)phenoxazinium chloride (EtNBSe).