A double-network polysaccharide-based composite hydrogel for skin wound healing

Yuxin He, Yang Li, Yadong Sun, Shijia Zhao, Miao Feng, Guoming Xu, Haofang Zhu, Peihong Ji, Hongli Mao, Yiyan He, Zhongwei Gu

Research output: Contribution to journalArticlepeer-review

164 Scopus citations

Abstract

Effective wound dressings are of great significance in preventing infections and promoting wound healing. However, most existing hydrogel dressings have an inadequacy in either mechanical performance, biological activities, or versatilities. Here we presented a double-network cross-linked polysaccharide-based hydrogel composed of collagen peptide-functionalized carboxymethyl chitosan (CS) and oxidized methacrylate sodium alginate (SA). The hydrogel possessed interconnected porous morphologies, suitable swelling ratios, excellent mechanical properties, and favorable biocompatibility. Meanwhile, the in vivo studies using a mouse full-thickness skin defect model showed that the double-network CS/SA hydrogel significantly accelerated wound healing by regulating the inflammatory process, promoting collagen deposition, and improving vascularization.

Original languageEnglish
Article number117870
JournalCarbohydrate Polymers
Volume261
DOIs
StatePublished - 1 Jun 2021

Keywords

  • Carboxymethyl chitosan
  • Collagen peptide
  • Double-network hydrogel
  • Oxidized methacrylate sodium alginate
  • Wound dressing

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