Fig. 1: Preparation schemes of the film and fiber hydrogel wound dressings.

a Structures of the main components in hydrogel film and fiber dressings. Syntheses of (b) PPN hydrogel film and (c) Alg-PPN hydrogel fiber dressings.
a Structures of the main components in hydrogel film and fiber dressings. Syntheses of (b) PPN hydrogel film and (c) Alg-PPN hydrogel fiber dressings.