Fig. 6. Effect of nanofiber scaffolds on expression of tissue repair-related genes. (A) Real-time qPCR analysis of tissue repair-related genes VEGF and COL-I after cells were cultured for 7 days on different nanofiber scaffolds. (B) Immunofluorescent images of COL-I on different nanofiber scaffolds after 7 days. (C) Semi-quantitative analysis of immunofluorescence assay of COL-I on different nanofiber scaffolds after 7 days. (a) PLGA, (b) PDA-PLGA, (c) PDA-PLGA/bFGF, (d) PDA-PLGA/ponericin G1, (e) PDA-PLGA/bFGF/ponericin G1. Scale bars, 200 μm.