Fig. 1

The morphological properties of electrospun (a) PGU, (b) PGU-Soy, (c) PGU-Soy/G, (d) PGU-Soy/GS nanofibers (scale bars: 10 μm) and the corresponding diameter distributions, the cross-section of (e) PGU-Soy/G, (f) PGU-Soy/GS nanofibers (scale bars: 10 μm). The inner and outer layers are PGU-Soy while the middle layer is composed of simvastatin-loaded or –free gelatin