Swelling characteristics and drug delivery properties of nifedipine-loaded pH sensitive alginate-chitosan hydrogel beads.
The aim of the present work was to investigate the swelling behavior and in vitro release of nifedipine from alginate-chitosan hydrogel beads. Structure and surface morphology of the hydrogel were characterized by FTIR and SEM, respectively. Alginate-chitosan mixed beads and […]