11) Hydrogels based on chitin and chitosan
1. The physicochemical properties of the hydrogel depend not only on the molecular structure, the
gel structure, and the degree of cross-linking, but also on the content and state of the water in
the hydrogel
2. Hydrogels have been widely used in controlled-release system
① Chitosan/polyether interpenetrating polymer network (IPN) hydrogel
② Semi-IPN hydrogel polymer networks of β-chitin and poly (ethylene glycol) macromer
③ Hydrogels of poly (ethylene glycol) macromer/β-chitosan
④ Hydrogels of chitosan/gelatin hybrid polymer network
⑤ Chitosan-amine oxide gel
12) Others
1. Anticancer (antiulcer) activity
2. Antiradioactivity
3. Cholesterol lowering activity
4. Dietary fiber
5. Prevention effect on tooth
6. Coating effect on fruits and some seed