Fig. 1: Schematic diagram of Alg-BA@PDA sponge preparation and wound healing process.

A Synthesis of sodium alginate modified with 3-Aminobenzeneboronic acid. B Alg-BA chains crosslink with each other and PDA-NPs via borate ester bonds. C Photos of PDA-NPs, Alg-BA, Alg-BA@PDA, and self-gelation Alg-BA@PDA. D Mild heat-assisted Alg-BA@PDA sponges, significantly kill bacteria, inhibit inflammation, and promote angiogenesis, effectively enhancing the healing of wounds.