Fig. 5From: Statistical Optimization of the Sol–Gel Electrospinning Process Conditions for Preparation of Polyamide 6/66 Nanofiber BundlesSEM images of polyamide 6/66 nanofiber bundles obtained through electrospinning sol–gel process at different concentrations. a 12% wt., b 17% wt., and c 22% wt.Back to article page