Fig. 2.

The therapeutic efficacy of fullerenol nanoparticles to prevent lung metastasis. a Bioluminescence images of mice after injection of breast cancer cells on days 1, 14 and 35. b Metastatic foci distribution in nude mice. Typical ex vivo images of major organs from each group at 42 days after injection. Fluorescence intensity was detected with a spectrum/CT multimodal imaging system. c Quantified lung distribution in each group, *P < 0.05, **P < 0.01, n = 5. d H/E and vimentin staining of lung tissue section from different groups, scale bar = 100 μm