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  1. Home
  3. In Situ-forming, Adhesive, And Antioxidant Chitosan Hydrogels For Accelerated Wound Healing.
  1. Home
  3. In Situ-forming, Adhesive, And Antioxidant Chitosan Hydrogels For Accelerated Wound Healing.

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In Situ-Forming, Adhesive, and Antioxidant Chitosan Hydrogels for Accelerated Wound Healing.

Ying Luo1,2, Yiping Zhao1, Li Chen1

  • 1State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tiangong University, Tianjin 300387, China.

Biomacromolecules
|January 28, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

This study developed antioxidant hydrogels from carboxymethyl chitosan and dopamine for wound healing. These novel hydrogels promote moist wound healing and reduce scarring by scavenging reactive oxygen species.

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Wound Healing

Background:

  • Antioxidant hydrogels are promising for wound dressings due to their ability to maintain a moist environment and neutralize reactive oxygen species (ROS).
  • In situ-forming hydrogels with tissue adhesiveness are highly desirable for wound care, ensuring complete defect filling and intimate wound contact.

Purpose of the Study:

  • To develop a novel antioxidant hydrogel dressing with in situ-forming capability, tissue adhesiveness, and potent antioxidant properties.
  • To evaluate the efficacy of the developed hydrogel in promoting wound healing and reducing scar formation in a preclinical model.

Main Methods:

  • Conjugation of dopamine onto carboxymethyl chitosan to create a novel polymer.
  • Utilizing a horseradish peroxidase (HRP)-catalyzed cross-linking reaction for in situ hydrogel formation under mild conditions.
  • Assessment of hydrogel properties including in situ gelation, tissue adhesion, and antioxidant activity.
  • Evaluation of wound healing performance in a rat full-thickness skin wound model.

    • Main Results:

    • A novel hydrogel was successfully synthesized by conjugating dopamine onto carboxymethyl chitosan.
    • The resulting hydrogel exhibited in situ-forming capability, good tissue adhesiveness, and excellent antioxidant properties.
    • In vivo studies demonstrated accelerated wound healing and reduced scar formation in rats treated with the antioxidant hydrogel dressing.

    Conclusions:

    • The developed dopamine-conjugated carboxymethyl chitosan hydrogel is a promising advanced wound dressing material.
    • Its combination of in situ-forming ability, tissue adhesion, and antioxidant capacity effectively promotes wound healing and minimizes scarring.