Preparation of Polysaccharide-Based Microspheres by a Water-in-Oil Emulsion Solvent Diffusion Method for Drug Carriers
Figure 2
Expanded SEM images of drug-free microspheres of (a) 15 kDa chitosan, (b) 100 kDa chitosan, (c) potato starch, and (d) alginate. Bars = 10 m for (a) and (c), 20 m for (b), and 50 m for (d).
