412458.fig.004a
(a)
412458.fig.004b
(b)
412458.fig.004c
(c)
412458.fig.004d
(d)
412458.fig.004e
(e)
412458.fig.004f
(f)
Figure 4: SEM micrographs of cross-sections of drug-loaded blend films with SF/alginate blend ratios of (a) 0/1, (b) 1/1, (c) 2/1, (d) 4/1, (e) 8/1, and (f) 1/0 (w/w). All bars = 10 μm.