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  1. Home
  3. Biocompatible Interpenetrating Network Hydrogels With Dually Cross-linked Polyol.
  1. Home
  3. Biocompatible Interpenetrating Network Hydrogels With Dually Cross-linked Polyol.

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Biocompatible Interpenetrating Network Hydrogels with Dually Cross-Linked Polyol.

Ulygbek B Tuleuov1, Alexander L Kwiatkowski2, Akerke T Kazhmuratova1

  • 1Faculty of Chemistry, Karaganda Buketov University, Karaganda 100028, Kazakhstan.

Polymers
|October 28, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

We developed novel interpenetrating polymer networks (IPN) hydrogels with enhanced elasticity for tissue engineering. These biocompatible materials utilize dual cross-linking for superior mechanical properties, supporting tissue regeneration.

Keywords:
hydrogelsinterpenetrating networksmicrocrystallitespoly(vinyl alcohol)rheologytannic acid

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Area of Science:

  • Biomaterials Science
  • Polymer Chemistry
  • Tissue Engineering

Background:

  • Soft biocompatible materials are crucial for tissue regeneration.
  • Polymer hydrogels offer tunable mechanical properties for this application.

Purpose of the Study:

  • To introduce interpenetrating polymer networks (IPN) hydrogels with improved elasticity.
  • To investigate a dual cross-linking mechanism for enhanced mechanical performance.

Main Methods:

  • Fabrication of IPN hydrogels using poly(ethylene glycol) methacrylate/diacrylate (PEGMA/PEGDA) and poly(vinyl alcohol) (PVA).
  • Incorporation of physical cross-links via microcrystallites and tannic acid (TA).
  • Characterization using rheological measurements, X-ray diffraction, ATR FTIR-spectroscopy, and microscopy.

Main Results:

  • Synergistic enhancement of elastic modulus observed upon PVA addition due to entanglements.
  • Independent tuning of mechanical properties by varying PEGMA/PEGDA ratio and PVA concentration.
  • Further elasticity increase via freezing-thawing and TA treatment, confirmed by structural analyses.
  • Microphase-separated morphology promoting 3D network formation and enhanced mechanical performance.

Conclusions:

  • The developed IPN hydrogels exhibit superior elasticity and tunable mechanical properties.
  • The dual cross-linking strategy effectively enhances material performance.
  • These hydrogels show significant potential for tissue engineering applications.