478279.fig.003a
(a)
478279.fig.003b
(b)
478279.fig.003c
(c)
478279.fig.003d
(d)
Figure 3: Scanning electron microscopic (SEM) images of both horizontal cross sections (a) and (b) and lateral cross sections (c) and (d) of macroporous structure of synthesized carrageenan-gelatin cryogels. (a) and (c) are CGG cryogels having glutaraldehyde as a crosslinker. (b) and (d) are CGE cryogels with EDC-NHS as a crosslinker.