Preparation and Characterization of Sodium Alginate/Chitosan Composite Nanoparticles Loaded with Chondroitin Sulfate

Figure 6

Swelling ratios in different pH values of CS@SA/chitosan nanocomposite hydrogels fabricated with different weight ratios of SA and CS at (a) pH = 6.8, 1 : 1; (b) pH = 6.8, 2 : 1; (c) pH = 6.8, 5 : 1; (d) pH = 1.2, 1 : 1; (e) pH = 1.2, 2 : 1; (f) pH = 1.2, 5 : 1.