Figure 1: Cytotoxicity of DVDMS-mediated photodynamic therapy.

Cell viability of DVDMS-PDT treatment on (A) SGC7901 cells, (B) Caco2 cells, (C) SW480 cells and (D) SW620 cells were measured by the MTT assay. Data are means ± SD of three independent experiments. *p < 0.05, **p < 0.01 and ***p < 0.001 versus untreated cells. MTT, 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide.