Ceria Nanoenzyme-Based Hydrogel with Antiglycative and Antioxidative Performance for Infected Diabetic Wound Healing

Small Methods. 2022 Nov;6(11):e2200949. doi: 10.1002/smtd.202200949. Epub 2022 Oct 6.

Abstract

Diabetic wound healing still faces a dilemma because of the hostile hyperglycemic, oxidative, and easily-infected wound microenvironment. In addition, advanced glycation end products (AGEs) further impede wound repair by altering the immunological balance. Herein, ceria nanorods with distinctive antiglycative and excellent antioxidative capacities are innovatively introduced into a self-healing and erasable hydrogel, which could reshape the wound microenvironment by expediting hemostasis, inhibiting infection, reducing AGEs, and continuously depleting reactive oxygen species. The remitted oxidative stress and glycosylation synergistically regulate inflammatory responses, and promote revascularization and extracellular matrix deposition, resulting in accelerated diabetic wound repair. This study provides a highly efficient strategy for constructing nanoenzyme-reinforced antiglycative hydrogel that regulates every wound healing stage for diabetic wound management.

Keywords: advanced glycation end products; antiglycative performance; ceria nanoenzymes; diabetic wound repair; multifunctional hydrogels.

MeSH terms

  • Antioxidants / pharmacology
  • Diabetes Mellitus*
  • Humans
  • Hydrogels / therapeutic use
  • Wound Healing / physiology
  • Wound Infection* / drug therapy

Substances

  • Hydrogels
  • Antioxidants