Group 1 - The article discusses the development of a "bionic band-aid" using snail mucus, which offers new hope for treating diabetic foot ulcers [2][3] - Snail mucus contains proteins and polysaccharides, with glycosaminoglycans being the main effective component that promotes wound healing [2][3] - The structure of glycosaminoglycans varies among different snail species, with the "French snail" having a newly discovered type that resembles human extracellular matrix components [3] Group 2 - The bionic band-aid is designed to create a suitable healing environment for tissue growth by constructing a three-dimensional gel network using snail-derived glycosaminoglycans and gelatin [3] - The band-aid incorporates dynamic borate ester technology to release tea polyphenols from tea tree plants when glucose levels rise at the wound site, addressing issues of oxidation and low bioavailability [3][4] - In experiments on diabetic mouse models, the band-aid showed a 72.6% epidermal regeneration rate after 7 days, more than double that of the saline group, with collagen fiber arrangement closer to normal skin [3][4]