Fig. 7

a Experimental procedure of antitumor study in vivo. b Tumor growth curves of mice after different treatments (n = 5). c Average weights of tumors at the end of the treatment (day 14). d Body weight of mice in each group. e Photographs of representative tumors dissected from various groups as indicated, G1: PBS, G2: Laser, G3: APP NPs, G4: AQ4N, G5: PP NPs + Laser, G6: APP NPs + Laser. f H&E and immunochemical staining of TUNEL and PCNA in tumor sections after different treatments, the scale bar is 50 μm. *p < 0.05, ***p < 0.01