Synthesis and Biological Analysis of Thiotetra(ethylene glycol) monomethyl Ether-Functionalized Porphyrazines: Cellular Uptake and Toxicity Studies
Figure 4
MTT results for A549 (a) and WI-38 VA13 (b) cells exposed to pz (25 μM) or HpD (25 or 50 μM) for 4 hours, followed by white light exposure for 0 (black bars) or 10 (gray bars) minutes. Control cells were treated with an amount of DMSO equivalent to 25 μM pz.