Figure 3.

Swelling ability of hydrogel composites. After 16 hours, the swelling ratio of all hydrogels ranged from 3.89 to 6.98, confirming their suitability for use as a wound dressing. A swelling ratio of 6.98 was observed in hydrogels made only from (X). When gelatin and glutaraldehyde were used in the mixture, the swelling ratio was drastically lowered to 3.89. (i.e., X : Ge : G). Abbreviations. Xanthan gum (X), boric acid (B), gelatin (Ge), polyethylene glycol (Peg), chitosan (Ch), and glutaraldehyde (G).