Fig. 3
From: Rhein laden pH-responsive polymeric nanoparticles for treatment of osteoarthritis
In-vitro release of Rh from Rh-PLGA-NPs@NH4 and Rh-PLGA-NPs@NH4 in dissolution media phosphate buffer, at different a pH 7.4 b pH 5.4) and c SFE. Data are means ± S.D., n = 03