Research Article
Synthesis and Characterization of Chemically Cross-Linked Acrylic Acid/Gelatin Hydrogels: Effect of pH and Composition on Swelling and Drug Release
Figure 4
Dynamic swelling coefficient of AA/Gelatin hydrogels with different concentration of acrylic acid (28, 32, and 36 g) using EGDMA as cross-linking agent (0.7%) of acrylic acid in 0.05 M USP phosphate buffer solutions of different pH values at 37°C.