Fig. 2

SEM photograph (a, b, c) and normal size distribution (e, f, g) of nanofibers in different composition PVA (a, e), Ch-PVA (b, f), and Ch-PVA + Silk (c, g)

SEM photograph (a, b, c) and normal size distribution (e, f, g) of nanofibers in different composition PVA (a, e), Ch-PVA (b, f), and Ch-PVA + Silk (c, g)