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The morphology and differentiation in MSCs treated with CuS@BSA. A) The immunofluorescence images of β-actin and vimentin in MSCs incubated with each group for 48 h. (Blue: Nucleus; Green: β-actin; Red: Vimentin. Scale bar =50 μm). B) The expression of vimentin in MSCs by western blot detection. The intensity of vimentin/β-actin. C) SEM image of MSCs seeded in PLA electrospun film treated by CuCl2 and CuS@BSA for 3 days (20000×. Scale bar=10μm).
