724763.fig.002a
(a)
724763.fig.002b
(b)
724763.fig.002c
(c)
724763.fig.002d
(d)
724763.fig.002e
(e)
724763.fig.002f
(f)
Figure 2: Scanning electron micrographs of alginate-carrageenan freeze-dried hydrogel microparticles (a) FD1, (b) FD2, (c) FD3, and the corresponding air-dried hydrogel microparticles (d) AD1, (e) AD2, and (f) AD3.