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Related Experiment Video

Updated: Mar 17, 2026

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
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Sprayable Polymer Blends With Short-Chain Surface Segregation for Preventing Postoperative Abdominal Adhesions.

Robert J Morris1, Tejaswi Nori1, Alex I Halpern2

  • 1Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland, USA.

Advanced Healthcare Materials
|March 16, 2026
PubMed
Summary

This study developed a new polymer blend for surgical adhesion prevention. The Poly(D,L-lactide-co-caprolactone) and polyethylene glycol (PLCL/PEG) fibers significantly reduced post-surgical adhesions in a mouse model.

Keywords:
adhesion barriersprayable polymersurface segregationtissue adhesive

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Surgical Innovation

Background:

  • Post-surgical adhesions are a common complication, leading to significant morbidity.
  • Current prophylactic methods like Seprafilm have limitations in mechanical stability and efficacy.
  • Poly(D,L-lactide-co-caprolactone) (PLCL) shows potential as an adhesion barrier but requires modification due to tackiness and hydrophobicity.

Purpose of the Study:

  • To develop and evaluate a novel Poly(D,L-lactide-co-caprolactone)/polyethylene glycol (PLCL/PEG) blend for enhanced surgical adhesion prevention.
  • To improve the mechanical stability and hydrophilic properties of PLCL-based adhesion barriers.
  • To assess the efficacy of PLCL/PEG blends in reducing post-surgical adhesions in a preclinical model.

Main Methods:

  • Solution Blow Spinning (SBS) was used to fabricate PLCL/PEG blend fibers.
  • In vitro characterization included assessment of tissue adhesion strength and mechanical performance over time.
  • Surface properties were analyzed to evaluate hydrophilicity and protein adherence.
  • A murine cecal ligation model was employed to evaluate in vivo adhesion formation and severity.

Main Results:

  • PLCL/PEG fibers demonstrated tissue adhesion strengths exceeding 10 kPa.
  • The blended fibers maintained mechanical stability throughout clinically relevant degradation periods.
  • Blending PEG significantly increased hydrophilicity and reduced in vitro protein adherence.
  • In vivo, PLCL/PEG blends significantly reduced adhesion severity and incidence compared to controls and Seprafilm.

Conclusions:

  • The developed PLCL/PEG blend offers improved mechanical stability and hydrophilic properties for surgical adhesion barriers.
  • This novel biomaterial demonstrates significant potential in reducing post-surgical adhesions.
  • PLCL/PEG blends represent a promising advancement over existing adhesion prophylaxis methods.