Multifunctional self-healing peptide hydrogel for wound healing

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Wound Healing Research

Background:

• Complete wound healing is a significant clinical challenge.
• Inflammation and infection can impede skin wound healing.
• Advanced wound dressings are needed to improve healing outcomes.

Purpose of the Study:

• To develop a multifunctional, self-repairing, and injectable hydrogel for enhanced skin wound healing.
• To incorporate a pro-angiogenic biopeptide for sustained drug delivery and improved tissue regeneration.
• To evaluate the biocompatibility, antimicrobial properties, and efficacy of the hydrogel in promoting wound repair.

Main Methods:

• Construction of a self-repairing hydrogel using Schiff base bonds with carboxymethyl chitosan and oxidized chondroitin sulfate.
• Covalent cross-linking of the SIKVAV biopeptide to the hydrogel for slow drug release.
• Assessment of hydrogel properties, including injectability, self-healing, biocompatibility, and antimicrobial activity.
• In vivo evaluation of the hydrogel's efficacy in promoting angiogenesis and skin tissue repair in mice models.

Main Results:

• The hydrogel demonstrated excellent self-healing capabilities and injectability, ensuring wound adherence.
• The SIKVAV-loaded hydrogel exhibited good biocompatibility and antimicrobial properties.
• In vivo studies showed significant promotion of angiogenesis and effective skin tissue repair in mice.
• The SIKVAV biopeptide provided a stable and slow-release drug delivery system.

Conclusions:

• The developed injectable, self-repairing peptide hydrogel shows significant potential for facilitating skin wound healing.
• The hydrogel's multifunctionality, including self-repair, injectability, and bioactivity, addresses key challenges in wound care.
• This innovative biomaterial offers a promising platform for regenerative medicine and advanced wound management applications.