Gelation and the Self-Healing Behavior of the Chitosan–Catechol Hydrogel

) after immersion in the physiological saline. The CC scaffold prepared by lyophilizing the CC hydrogel revealed a macroporous structure (~200 µm), a high swelling ratio (9656%), good compressibility, and durability. This work provides an insight into the design of using chitosan-catechol alone to produce hydrogels or scaffolds with tunable mechanical properties for further applications in biomedical fields.