Scalable Spider-Silk-Like Supertough Fibers using a Pseudoprotein Polymer

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article number1904311
Journal / PublicationAdvanced Materials
Volume31
Issue number48
Online published25 Nov 2019
Publication statusPublished - 28 Nov 2019
Externally publishedYes

Abstract

Spider silks are tougher than almost all other materials in the world and thus are considered ideal materials by scientists and the industry. Although there have been tremendous attempts to prepare fibers from genetically engineered spider-silk proteins, it is still a very large challenge to artificially produce materials with a very high fracture energy, not to mention the high scaling-up requirements because of the extremely low productivity and high cost levels. Here, a facile spider-silk-mimicking strategy is first reported for preparing scalable supertough fibers using the chemical synthesis route. Supertoughness (≈387 MJ m−3), more than twice the reported value of common spider dragline silk and comparable to the value of the toughest spider silk, the aciniform silk of Argiope trifasciata, is achieved by introducing β-sheet crystals and α-helical peptides simultaneously in a pseudoprotein polymer. The process opens up a very promising avenue for obtaining excellent spider fibers.

Research Area(s)

  • pseudoprotein polymers, spider silk, supertough

Citation Format(s)

Scalable Spider-Silk-Like Supertough Fibers using a Pseudoprotein Polymer. / Gu, Lin; Jiang, Yuanzhang; Hu, Jinlian.
In: Advanced Materials, Vol. 31, No. 48, 1904311, 28.11.2019.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review