Fig. 5
a Cell apoptosis of CT26 cells treated with PBS (control), RV, TiS2/RV, IR780-TiS2/RV, and IR780-TiS2/RV + NIR by FCM. b The change in mitochondrial membrane potential of CT26 cells treated with PBS (control), RV, TiS2/RV, IR780-TiS2/RV, and IR780-TiS2/RV with or without NIR irradiation by FCM. c Expression of apoptosis-related proteins in CT26 cells treated with PBS (control), RV, TiS2/RV, IR780-TiS2/RV, and IR780-TiS2/RV + NIR. Cytochrome c, cleaved caspase-3, and cleaved caspase-9 were tested by Western blot. **P < 0.01, compared with IR780-TiS2/RV, TiS2/RV + NIR, and IR780-TiS2 groups