Fig. 7

Nerve regeneration at 18 weeks postoperatively. HE (a–f) and TB (g–l) staining for regenerated nerves at 18 weeks post operatively. a, g SC-loaded PDA/RGD-SG/PCL. b, h SC-loaded PDA/RGD-MG/PCL. c, i PDA/RGD-SG/PCL. d, j PDA/RGD-MG/PCL. e, k PDA/RGD-PCL. f, l Autograft. The scale bar is 100 μm