Chitosan-Alginate Sponge: Preparation and Application in Curcumin Delivery for Dermal Wound Healing in Rat

Figure 3

SEM micrographs of chitosan-alginate sponges: (a) alginate alone, (b) chitosan alone , (c) C2A2, and (d) Curcumin-C2A2.

(a)

(b)

(c)

(d)