Document Type

Journal Article

Publication Title

International Journal of Biological Macromolecules

Volume

266

PubMed ID

38554918

Publisher

Elsevier

School

School of Engineering

RAS ID

69901

Funders

Shiraz University of Medical Sciences

Comments

This is an Authors Accepted Manuscript version of an article published by Elsevier in International Journal of Biological Macromolecules, 266(Part 2), article 131231.The published version is available https://doi.org/10.1016/

Eskandarinia, A., Morowvat, M. H., Niknezhad, S. V., Baghbadorani, M. A., Michálek, M., Chen, S., . . . Ghasemi, Y. (2024). A photocrosslinkable and hemostatic bilayer wound dressing based on gelatin methacrylate hydrogel and polyvinyl alcohol foam for skin regeneration. International Journal of Biological Macromolecules, 266(Part 2), article 131231. https://doi.org/10.1016/j.ijbiomac.2024.131231

Abstract

The enormous potential of multifunctional bilayer wound dressings in various medical interventions for wound healing has led to decades of exploration into this field of medicine. However, it is usually difficult to synthesize a single hydrogel with all the required capabilities simultaneously. This paper proposes a bilayer model with an outer layer intended for hydrogel wound treatment. By adding gelatin methacrylate (GelMA) and tannic acid (TA) to the hydrogel composition and using polyvinyl alcohol-carboxymethyl chitosan (PVA-CMCs) foam layer as supports, a photocrosslinkable hydrogel with an optimal formulation was created. The hydrogels were then examined using a range of analytical procedures, including mechanical testing, rheology, chemical characterization, and in vitro and in vivo tests. The resulting bilayer wound dressing has many desirable properties, namely uniform adhesion and quick crosslinking by UV light. When used against Gram-positive and Gram-negative bacterial strains, bilayer wound dressings demonstrated broad antibacterial efficacy. In bilayer wound dressings with GelMA and TA, better wound healing was observed. Those without these elements showed less effectiveness in healing wounds. Additionally, encouraging collagen production and reducing wound infection has a major therapeutic impact on wounds. The results of this study could have a significant impact on the development of better-performing wound dressings.

DOI

10.1016/j.ijbiomac.2024.131231

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Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Available for download on Thursday, May 01, 2025

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