Abstract
Difficulty in diabetic wound healing presents a significant challenge in clinical practice. This study developed a hydrogel utilizing oxidized sodium alginate (OSA) and carboxymethyl chitosan (CMCS) as the matrix. Astilbin (ASB), known for its antioxidant properties, was incorporated into Astilbin liposome (AL) using a thin film dispersion method. Diclofenac sodium (DS) and AL, both possessing anti-inflammatory properties, were then encapsulated in the hydrogel to create a pH-responsive dual-release system for topical application to expedite diabetic wound healing. Results from the research demonstrate that the composite hydrogel exhibits favorable biodegradability, stable rheology, and swelling capacity, facilitating the controlled release of AL and DS. In vivo and in vitro data demonstrated that the hydrogel was biocompatible and anti-inflammatory, antibacterial and homeostatic, and significantly promoted the process of inflammation suppression, angiogenesis and fibrotic repair of wounds. In conclusion, this novel hydrogel provides a simple and effective method for the repair of chronic diabetic wounds.
Published Version
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