Innovating fire safety with recombinant hydrophobic proteins for textile fire retardancy

Katie Gilmour, Thora H. Arnardottir, Jane Scott, Paul James, Yunhong Jiang, Martyn Dade-Robertson, Meng Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
29 Downloads (Pure)

Abstract

Fire retardancy for textiles is important to prevent the rapid spread of fire and minimize damage to property and harm to human life. To infer fire-resistance on textile materials such as cotton or nylon, chemical coatings are often used. These chemicals are usually toxic, and economically and environmentally unsustainable, however, some naturally produced protein-based fire retardants could be an alternative. A biofilm protein from Bacillus subtilis (BslA) was identified and recombinantly expressed in Escherichia coli with a double cellulose binding domain. It was then applied to a range of natural and synthetic fabric materials. A flame retardancy test found that use of BslA reduced fire damage by up to 51% and would pass fire retardancy testing according to British standards. It is therefore a viable and sustainable alternative to current industrial fire-retardant coatings.
Original languageEnglish
Pages (from-to)2194-2199
Number of pages6
JournalMicrobial Biotechnology
Volume16
Issue number11
Early online date25 Sept 2023
DOIs
Publication statusPublished - 1 Nov 2023

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