Fig. 6. (A) Light-induced cytotoxicity of silica-TTMAPP-DOPC on DU145 cells incubated at pH 7.4 (solid black lines), pH 6.3 (solid blue line) and pH 5.4 (solid red line) as a function of TTMAPP concentrations. The corresponding colored dash lines represent controls with same amount of silica and DOPC in the absence of TTMAPP. The data represents the plot of mean cell viability ± standard deviation with n = 4. (B) Detection of DU145 cell death by DAPI staining assay upon cell treatments with silica-TTMAP-DOPC containing 13 μM TTMAPP at pH 7.4, pH 6.3 and pH 5.4. Representative fields out of six fields are shown here.
