Research Article

Acidic Tumor pH-Responsive Nanophotomedicine for Targeted Photodynamic Cancer Therapy

Figure 6

In vitro cytotoxicity test of the pH-NanoPM at different pH values: HeLa cells treated with the pH-NanoPM at pH 7.4 and 6.5 (dose of PPb-a: 1.6 × 10−5 M, and laser power: 3.6 J/cm−2, , ).