Fig. 1. (A) SEM image of aligned KGN-PCL scaffold and aligned PCL scaffold. (B) Wettability measurement of electrospun fibrous membranes in two groups. (C) In vitro release profile of KGN from aligned PCL scaffolds. (D) Proliferation of rBMSCs on different doses of aligned KGN electrospun fibrous membrane. There was no difference between 0 μm and 10–100 μm groups.