Two-Photon Photodynamic Therapy by Water-Soluble Self-Assembled Conjugated Porphyrins

Figure 11

Pictures of HeLa cells incubated with 15 before (a) and after (b) two photon excitation with 100 fs pulses at 780 nm. The irradiated position is marked by a white arrow. The degradation of the cell membrane was observed as indicated by an oval.