Acidic Tumor pH-Responsive Nanophotomedicine for Targeted Photodynamic Cancer Therapy

Figure 5

In vitro cellular internalization of the pH-NanoPM. (a) Flow cytometry quantification of the cellular internalization of the pH-NanoPM at different pH values (pH 7.4 and 6.5). (b) Confocal microscopy image of HeLa cells treated with the pH-NanoPM (Scale bars: 50 μm).

(a)

(b)