Fig. 6: Osteogenic differentiation.

a, b Coloration and quantification of ALP activity, c, d ARS staining and quantification of calcium production, and e RT-PCR analysis for osteo-specific genes on different PDA/PCL fibrous membranes. * represents p < 0.05 between groups, **represents p < 0.01 between groups. # represents p < 0.05 compared with other groups, and ## represents p < 0.05 compared with other groups