Figure 8.

Comparison of BAM-SiPc retention in WRL68 and HepG2 cells. Cells were incubated with 0.5 μM BAM-SiPc for 2 h for uptake before the unbound photosensitizer was removed by washing. The cells were then lysed with DMF either (a) immediately, or (b) after 24 h of incubation with the culture medium. The residual BAM-SiPc was estimated by fluorescence measurement. Two controls were performed: (c) cells lysed with DMF before adding BAM-SiPc and (d) BAM-SiPc, cell-free control. Data represent mean±s.d., n=3.