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Updated: Jan 25, 2026
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Doxycycline Loaded Collagen-Chitosan Composite Scaffold for the Accelerated Healing of Diabetic Wounds
Published on: August 21, 2021
4.9K
Polyelectrolyte nanocomplexes based on chitosan derivatives for wound healing application.
Viorica Patrulea1, Lee Ann Laurent-Applegate2, Vasile Ostafe3
1School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva, Switzerland.
Summary
New chitosan-based formulations incorporating Arg-Gly-Asp (RGD) peptides show promise for wound healing. These RGD-functionalized materials promote cell proliferation and migration in vitro, suggesting potential for accelerated topical wound repair.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Wound Healing Research
Background:
- Compromised wound healing requires effective therapeutic strategies.
- Biological cues like Arg-Gly-Asp (RGD) peptide can enhance cell adhesion and migration.
- Nanocarrier systems offer potential for targeted delivery of therapeutic agents.
Purpose of the Study:
- To develop and characterize novel topical formulations for wound healing.
- To investigate the in vitro efficacy of RGD-functionalized chitosan-based materials.
- To assess the potential of these formulations to accelerate wound repair.
Main Methods:
- Preparation of polyelectrolyte nanocomplexes using carboxylated and trimethylated chitosan (CMTMC) and chondroitin sulfate.
- Characterization of nanocomplexes via dynamic light scattering and scanning electron microscopy.
- Development of hydrogels and foams incorporating RGD-functionalized chitosan and hyaluronic acid.
Main Results:
- Formulations exhibited no toxicity in vitro.
- Enhanced proliferation of human dermal fibroblasts over 7 days.
- Promoted migration of human dermal fibroblasts.
- Demonstrated suitability for topical application.
Conclusions:
- RGD-functionalized CMTMC/chondroitin sulfate nanocomplexes, hydrogels, and foams are promising for wound healing.
- These formulations support key cellular processes for tissue repair.
- The developed materials have the potential to accelerate wound healing through topical application.
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