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Composite Hydrogel Dressing with Drug-Release Capability and Enhanced Mechanical Performance.

Jie Yang1, Fanlei Yang2, Wenhao Xu1

  • 1National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.

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Summary

This study introduces a new composite hydrogel wound dressing with berberine and plant fibers. The advanced dressing shows strong antibacterial properties and promotes faster wound healing.

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Wound Healing

Background:

  • Chronic and infected wounds necessitate advanced treatment solutions.
  • Conventional wound dressings lack optimal drug delivery and mechanical properties.
  • Berberine and Calotropis gigantea fibers (CGFs) possess therapeutic potential for wound management.

Purpose of the Study:

  • To develop and characterize a novel composite hydrogel wound dressing.
  • To incorporate berberine-loaded silk fibroin microspheres and CGFs for enhanced functionality.
  • To evaluate the dressing's antibacterial, mechanical, hemostatic, and wound healing properties.

Main Methods:

  • Fabrication of a composite hydrogel incorporating berberine-loaded silk fibroin microspheres and CGFs.
  • Assessment of antibacterial activity against Staphylococcus aureus.
  • Evaluation of mechanical properties, including compressive strength.
  • In vitro and in vivo studies to assess biocompatibility and wound healing efficacy.

Main Results:

  • The hydrogel dressing demonstrated significant antibacterial activity (97.40 ± 0.53%) against Staphylococcus aureus.
  • CGF incorporation enhanced mechanical strength (295.74 ± 27.45 kPa) and hemostatic efficiency (0.33%).
  • The dressing exhibited sustained berberine release, superior biocompatibility, and accelerated wound healing via neovascularization and collagen deposition.

Conclusions:

  • The composite hydrogel dressing offers a multifunctional platform for advanced wound care.
  • It provides sustained drug release, enhanced mechanical integrity, and potent antibacterial action.
  • This innovative dressing represents a promising next-generation solution for chronic and infected wounds.