Silver/Copper Nanoparticle-Modified Polymer Chitosan/PVA Blend Fibers

Figure 4

SEM images of electrospun nanofibers prepared with different weight ratios of (a) 20/80, (b) 30/70, (c) 40/60, and (d) 50/50 of CS/PVA at a voltage of 15 kV and a distance of 15 cm.

(a)

(b)

(c)

(d)