Fig. 5From: Hyaluronic acid-coated Bi:Cu2O: an H2S-responsive agent for colon cancer with targeted delivery and enhanced photothermal performanceIn vitro PTT effect. A Confocal laser scanning microscopy images of CT26 cells stained by Calcein AM (green color) and PI (red color). B Apoptotic indexes for different groups. Data are presented as means ± SDs (n = 3). ****p < 0.0001. C Photographs of the scratched areas after treatment in different groupsBack to article page