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Published on: February 28, 2025
Biofunctionalized electrospun silk mats as a topical bioactive dressing for accelerated wound healing
A Schneider1, X Y Wang, D L Kaplan
1Division of Cancer Biology and Tissue Engineering, Department of Oral and Maxillofacial Pathology, Tufts University, School of Dental Medicine, 55 Kneeland Street, Boston, MA 02111, USA.
Acta Biomaterialia
|January 24, 2009
Summary
Silk mats delivering epidermal growth factor (EGF) accelerate wound healing. This promising biomaterial shows significant potential for treating chronic wounds effectively.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Topical delivery of bioactive molecules is crucial for advanced biomaterials.
- Silk-based materials offer a versatile platform for drug delivery applications.
- Epidermal Growth Factor (EGF) plays a key role in cellular proliferation and tissue repair.
Purpose of the Study:
- To develop and evaluate silk mats functionalized with EGF for enhanced wound healing.
- To assess the release kinetics of EGF from the silk mat matrix.
- To investigate the efficacy of EGF-releasing silk mats in a human skin-equivalent wound model.
Main Methods:
- Electrospinning of silk fibers to create nanoscale mats.
- Incorporation and characterization of EGF release from silk mats.
- Utilizing a 3D human skin-equivalent model to simulate in vivo wound healing.
- Evaluating wound closure rates and structural integrity using microscopy.
Main Results:
- EGF was successfully incorporated into silk mats with sustained release over 170 hours (25% release).
- EGF-functionalized silk mats significantly accelerated wound closure by 90% in the human skin-equivalent model.
- Silk mat structure remained intact throughout the healing process, indicating material stability.
- Biocompatibility of the silk material was confirmed.
Conclusions:
- Biofunctionalized silk mats represent a promising new biomaterial for promoting wound healing.
- The sustained release of EGF from silk mats enhances the closure of dermal wounds.
- This technology holds significant potential for clinical applications, particularly for chronic wound management.
