Fig. 7

In vitro antitumor effect of HACB/BCNU NPs. A, B The migration of HeLa cells after treatment. A, B Indicates the visualization and quantified analysis of wound healing (×100). Data are shown as mean ± S. D. (n = 3). C, D Survival rate of HeLa cells in the tumor spheroids after treatment under normoxia (C) and hypoxia (D). Data are shown as mean ± S. D. (n = 6), *p < 0.05, **p < 0.01 and ***p < 0.001