期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 10, 期 48, 页码 15968-15977出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.2c05411
关键词
keratin; complexation; fibers; processing; dry-spinning
资金
- European Research Council (ERC) under the European Union [864982]
- China Scholarship Council (CSC)
- European Research Council (ERC) [864982] Funding Source: European Research Council (ERC)
This research presents a new method for converting discarded keratin into protein-based materials. By using synthetic polyanions and complex coacervation with keratin, fibers with excellent mechanical properties, humidity responsiveness, and ion conductivity can be prepared, making them promising candidates for strain sensors.
Keratin is one of the most abundant biopolymers, produced on a scale of millions of tons per year but often simply discarded as waste. Due to its abundance, biocompatibility, and excellent mechanical properties, there is an extremely high interest in developing protocols for the recycling of keratin and its conversion into protein-based materials. In this work, we describe a novel protocol for the conversion of keratin from wool into hybrid fibers. Our protocol uses a synthetic polyanion, which undergoes complex coacervation with keratin, leading to a viscous liquid phase that can be used directly as a dope for dry-spinning. The use of polyelectrolyte complexation allows us to use all of the extracted keratin, unlike previous works that were limited to the fraction with the highest molecular weight. The fibers prepared by this protocol show excellent mechanical properties, humidity responsiveness, and ion conductivity, which makes them promising candidates for applications as a strain sensor.
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