Fig. 5. Growth-promoting effects of nanofiber scaffolds. (A) Proliferation of BALB/C 3T3 cells in different nanofiber scaffolds as determined by methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay. *P < 0.05, n = 4. (B) Fluorescent staining of BALB/C 3T3 cells cultured on different nanofiber scaffolds ((a) PLGA, (b) PDA-PLGA, (c) PDA-PLGA/bFGF, (d) PDA-PLGA/ponericin G1, (e) PDA-PLGA/bFGF/ponericin G1) for 3 days. Scale bars, 200 μm.
