Fig. 9

a The tumor volume growth curves of mice after various treatments indicated in the 14 days (n = 7 in each group). b The body weights of 4T1 tumor-bearing mice after various treatments indicated in the 14 days. Untreated: 1× PBS (pH 7.4); L: Laser irradiation; I: Injected with ICG–BSA NC solution; L + I: Laser irradiation was applied after injecting ICG–BSA NC solution for 24 h. Data are expressed as mean ± S.D. (n = 7) (*P < 0.01, **P < 0.01, ***P < 0.01 by t-test, the tumor growth was significantly inhibited in the group of L + I than that in other groups)