Fig. 10From: Advanced polymer hydrogels that promote diabetic ulcer healing: mechanisms, classifications, and medical applicationsContinuous oxygen-supplying hydrogel based on hydroxymethyl cellulose and silk fibroin, MnO2 nanosheets. a The preparation process of hydrogels. b The H2O2 clearance rate increased with increasing Mn2+ nanosheet content. c Effects of different types of hydrogels and O2 generation with H2O2 solution. d Images of the wounds in diabetic mice after treatment with commercial dressing films (3 M, Tegadermt), SF/CMC hydrogels and SF/CMC@MnO2 hydrogels for 0, 3, 7 and 14 days. Reproduced from [205] with permission from RSC Publishing Copyright 2022Back to article page