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ACS Appl Mater Interfaces. 2016 Aug 10;8(31):20371-8. doi: 10.1021/acsami.6b05232. Epub 2016 Jul 26.

Self-Healing Textile: Enzyme Encapsulated Layer-by-Layer Structural Proteins.

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Westphal College of Media Arts and Design, Shima Seiki Haute Tech Lab at ExCITe, Drexel University , Philadelphia, Pennsylvania 19104, United States.
U.S. Naval Research Laboratory, Code 6910, 4555 Overlook Avenue, S.W., Washington, D.C. 20375, United States.


Self-healing materials, which enable an autonomous repair response to damage, are highly desirable for the long-term reliability of woven or nonwoven textiles. Polyelectrolyte layer-by-layer (LbL) films are of considerable interest as self-healing coatings due to the mobility of the components comprising the film. In this work mechanically stable self-healing films were fabricated through construction of a polyelectrolyte LbL film containing squid ring teeth (SRT) proteins. SRTs are structural proteins with unique self-healing properties and high elastic modulus in both dry and wet conditions (>2 GPa) due to their semicrystalline architecture. We demonstrate LbL construction of multilayers containing native and recombinant SRT proteins capable of self-healing defects. Additionally, we show these films are capable of utilizing functional biomolecules by incorporating an enzyme into the SRT multilayer. Urease was chosen as a model enzyme of interest to test its activity via fluorescence assay. Successful construction of the SRT films demonstrates the use of mechanically stable self-healing coatings, which can incorporate biomolecules for more complex protective functionalities for advanced functional fabrics.


enzyme; layer-by-layer; self-healing; squid protein; textile

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