Dexamethasone-Loaded Chitosan Beads Coated with a pH-Dependent Interpolymer Complex for Colon-Specific Drug Delivery

Figure 8

SEM image of the surface morphology of loaded CS microparticles encapsulated in PAA-PVP complexes: (a) PVP-29 and (b) PVP-360.

(a)

(b)