DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cera, Luca | ko |
dc.contributor.author | Gonzalez, Grant M. | ko |
dc.contributor.author | Liu, Qihan | ko |
dc.contributor.author | Choi, Suji | ko |
dc.contributor.author | Chantre, Christophe O. | ko |
dc.contributor.author | Lee, Juncheol | ko |
dc.contributor.author | Gabardi, Rudy | ko |
dc.contributor.author | Choi, Myung Chul | ko |
dc.contributor.author | Shin, Kwanwoo | ko |
dc.contributor.author | Parker, Kevin Kit | ko |
dc.date.accessioned | 2021-03-05T06:30:04Z | - |
dc.date.available | 2021-03-05T06:30:04Z | - |
dc.date.created | 2020-09-14 | - |
dc.date.issued | 2021-02 | - |
dc.identifier.citation | NATURE MATERIALS, v.20, no.2, pp.242 | - |
dc.identifier.issn | 1476-1122 | - |
dc.identifier.uri | http://hdl.handle.net/10203/281251 | - |
dc.description.abstract | Shape-memory polymeric materials lack long-range molecular order that enables more controlled and efficient actuation mechanisms. Here, we develop a hierarchical structured keratin-based system that has long-range molecular order and shape-memory properties in response to hydration. We explore the metastable reconfiguration of the keratin secondary structure, the transition from alpha-helix to beta-sheet, as an actuation mechanism to design a high-strength shape-memory material that is biocompatible and processable through fibre spinning and three-dimensional (3D) printing. We extract keratin protofibrils from animal hair and subject them to shear stress to induce their self-organization into a nematic phase, which recapitulates the native hierarchical organization of the protein. This self-assembly process can be tuned to create materials with desired anisotropic structuring and responsiveness. Our combination of bottom-up assembly and top-down manufacturing allows for the scalable fabrication of strong and hierarchically structured shape-memory fibres and 3D-printed scaffolds with potential applications in bioengineering and smart textiles. Shear-aligned keratin protofibres are used to fabricate shape-memory fibres and three-dimensional scaffolds that respond to water. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | A bioinspired and hierarchically structured shape-memory material | - |
dc.type | Article | - |
dc.identifier.wosid | 000564513200001 | - |
dc.identifier.scopusid | 2-s2.0-85089989210 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 242 | - |
dc.citation.publicationname | NATURE MATERIALS | - |
dc.identifier.doi | 10.1038/s41563-020-0789-2 | - |
dc.contributor.localauthor | Choi, Myung Chul | - |
dc.contributor.nonIdAuthor | Cera, Luca | - |
dc.contributor.nonIdAuthor | Gonzalez, Grant M. | - |
dc.contributor.nonIdAuthor | Liu, Qihan | - |
dc.contributor.nonIdAuthor | Choi, Suji | - |
dc.contributor.nonIdAuthor | Chantre, Christophe O. | - |
dc.contributor.nonIdAuthor | Gabardi, Rudy | - |
dc.contributor.nonIdAuthor | Shin, Kwanwoo | - |
dc.contributor.nonIdAuthor | Parker, Kevin Kit | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | HYDROGEL | - |
dc.subject.keywordPlus | FIBERS | - |
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