Synthesis and Characterization of Chemically Cross-Linked Acrylic Acid/Gelatin Hydrogels: Effect of pH and Composition on Swelling and Drug Release

Figure 6

Dynamic swelling coefficient of AA/Gelatin hydrogels with different concentrations of EGDMA as cross-linking agent (0.65%, 0.75%, and 0.85% of acrylic acid) in 0.05 M USP phosphate buffer solutions of different pH values at 37°C.