Highly Porous pH-Responsive Carboxymethyl Chitosan-Grafted-Poly (Acrylic Acid) Based Smart Hydrogels for 5-Fluorouracil Controlled Delivery and Colon Targeting

Figure 6

Dynamic swelling coefficient of Poly (CMCS-g-AA) hydrogels with different contents of EGDMA as crosslinking agent (0.25%, 0.50%, and 1% of AA) in 0.05 M USP phosphate buffer solutions of different pH at 37°C.