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Biodegradable, Tissue Adhesive Polyester Blends for Safe, Complete Wound Healing.

John L Daristotle1, Metecan Erdi2, Lung W Lau3

  • 1Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, 8278 Paint Branch Dr., College Park, Maryland 20742, United States.

ACS Biomaterials Science & Engineering
|July 29, 2021
PubMed
Summary

Biodegradable poly(lactide-co-caprolactone) (PLCL) blends show promise as wound adhesives. These novel materials promote healing, reduce dressing changes, and offer strong adhesion, unlike traditional non-healing bandages.

Keywords:
bandagebiodegradable adhesivesprayable polymertissue adhesionwound healing

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Wound Healing Research

Background:

  • Conventional pressure-sensitive adhesives in bandages are non-biodegradable, potentially hindering wound healing and causing allergic reactions.
  • There is a need for advanced wound care materials that are both biocompatible and biodegradable.

Purpose of the Study:

  • To investigate biodegradable poly(lactide-co-caprolactone) (PLCL) copolymers as potential tissue adhesives.
  • To evaluate the efficacy of PLCL blends in promoting wound healing compared to clinical controls.

Main Methods:

  • Investigated blends of low molecular weight (LMW) and high molecular weight (HMW) poly(lactide-co-caprolactone) (PLCL).
  • Assessed wound healing parameters including vascularization, scarring, and inflammation.
  • Compared adhesive strength and wound adhesion to a clinical control bandage.

Main Results:

  • PLCL blend adhesives facilitated complete wound healing with comparable vascularization, scarring, and inflammation to controls.
  • Wounds treated with PLCL blends required fewer dressing changes due to adhesive integration.
  • A blend of LMW and HMW PLCL exhibited significantly higher adhesive strength than individual polymers.
  • Wound adhesion of PLCL blends was comparable to conventional polyurethane bandages.

Conclusions:

  • Biodegradable PLCL blends represent a viable alternative to non-biodegradable adhesives for wound care.
  • These novel biomaterials offer improved wound healing properties and reduced need for frequent dressing changes.
  • PLCL blend adhesives demonstrate strong adhesion, comparable to existing clinical standards.