Fig. 1
From: Superhydrophobic micro-nanofibers from PHBV-SiO2 biopolymer composites produced by electrospinning
SEM images of pure PHBV fibers at two magnifications (500x, 5000x). a, b Beadless microfibers from a 21 wt.% PHBV solution; c, d beads on microfibers from a 12 wt.% PHBV solution; e, f beaded nanofibers produced from a 4 wt.% PHBV solution