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Photopolymerized silk fibroin gel for advanced burn wound care

Indrakumar, S and Joshi, A and Dash, TK and Mishra, V and Tandon, B and Chatterjee, K (2023) Photopolymerized silk fibroin gel for advanced burn wound care. In: International Journal of Biological Macromolecules, 233 .

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Official URL: https://doi.org/10.1016/j.ijbiomac.2023.123569


The future of burn wound treatment lies in developing bioactive dressings for faster and more effective healing and regeneration. Silk fibroin (SF) hydrogels have proven regenerative abilities and are being explored as a burn wound dressing. However, unfavorable gelation conditions limit the processability and clinical application. Herein a white light-responsive photopolymerization technique was adapted for gelation via photooxidation of tyrosine. To render the gel suitable for application to irregular and non-planar burn surfaces, SF gel-incorporated dressing (SFD) was fabricated. The mild gelation conditions using white light afforded the loading of drugs for local delivery. The moisture balance ability of the dressing was confirmed by the favorable measures of swelling capacity (106 ± 1 %) and moisture retention (≈10 h). The in vitro cytocompatibility of the gel was confirmed using HaCaT cells. Finally, in vivo performance of the SFD was tested on a second-degree burn in a rodent model. The gross analysis and histological assessment revealed scarless healing in SFD-treated groups. Overall, the SFD developed in this work is shown to be a promising candidate for advanced burn wound care.

Item Type: Journal Article
Publication: International Journal of Biological Macromolecules
Publisher: Elsevier B.V.
Additional Information: The copyright for this article belongs to Elsevier B.V.
Keywords: Drug release; Hydrogel; Photo-crosslinking; Silk fibroin; Wound dressing
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 25 Feb 2023 07:34
Last Modified: 25 Feb 2023 07:34
URI: https://eprints.iisc.ac.in/id/eprint/80668

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