The Biologically Active Biopolymer Silk: The Antibacterial Effects of Solubilized Bombyx mori Silk Fibroin with Common Wound Pathogens.

Autor: Egan G; Department of Biomedical Engineering, University of Strathclyde, Glasgow, G4 0NW, UK., Hannah AJ; Department of Biomedical Engineering, University of Strathclyde, Glasgow, G4 0NW, UK., Donnelly S; Department of Biomedical Engineering, University of Strathclyde, Glasgow, G4 0NW, UK., Connolly P; Department of Biomedical Engineering, University of Strathclyde, Glasgow, G4 0NW, UK., Seib FP; Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow, G4 0RE, UK.; Branch Bioresources, Fraunhofer Institute for Molecular Biology & Applied Ecology, Ohlebergsweg 12, 35392, Giessen, Germany.; Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstr. 8, 07743, Jena, Germany.
Jazyk: angličtina
Zdroj: Advanced biology [Adv Biol (Weinh)] 2024 May; Vol. 8 (5), pp. e2300115. Date of Electronic Publication: 2024 Feb 27.
DOI: 10.1002/adbi.202300115
Abstrakt: Antibacterial properties are desirable in wound dressings. Silks, among many material formats, have been investigated for use in wound care. However, the antibacterial properties of liquid silk are poorly understood. The aim of this study is to investigate the inherent antibacterial properties of a Bombyx mori silk fibroin solution. Silk fibroin solutions containing ≥ 4% w/v silk fibroin do not support the growth of two common wound pathogens, Staphylococcus aureus and Pseudomonas aeruginosa. When liquid silk is added to a wound pad and placed on inoculated culture plates mimicking wound fluid, silk is bacteriostatic. Viability tests of the bacterial cells in the presence of liquid silk show that cells remain intact within the silk but could not be cultured. Liquid silk appears to provide a hostile environment for S. aureus and P. aeruginosa and inhibits growth without disrupting the cell membrane. This effect can be beneficial for wound healing and supports future healthcare applications for silk. This observation also indicates that liquid silk stored prior to processing is unlikely to experience microbial spoilage.
(© 2024 The Authors. Advanced Biology published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
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