Fig. 5From: Oleic acid conjugated polymeric photosensitizer for metastatic cancer targeting in photodynamic therapyIntracellular ROS generation of OPuC. Fluorescence microscopic images of HCT116 cells after treatment OPuC (2 μg mL− 1 of Ce6) for 4 h to detect ROS type1 (DCF-DA, conc 2.5 μM) depending on increase of laser powers. The scale bar is 10 μmBack to article page