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Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles

Mechanically responsive textiles have transformative potential in many areas from fashion to healthcare. Cholesteric liquid crystal elastomers have strong mechanochromic responses that offer attractive opportunities for such applications. Nonetheless, making liquid crystalline elastomer fibres suita...

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Autores principales: Geng, Yong, Kizhakidathazhath, Rijeesh, Lagerwall, Jan P. F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9712110/
https://www.ncbi.nlm.nih.gov/pubmed/36175519
http://dx.doi.org/10.1038/s41563-022-01355-6
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author Geng, Yong
Kizhakidathazhath, Rijeesh
Lagerwall, Jan P. F.
author_facet Geng, Yong
Kizhakidathazhath, Rijeesh
Lagerwall, Jan P. F.
author_sort Geng, Yong
collection PubMed
description Mechanically responsive textiles have transformative potential in many areas from fashion to healthcare. Cholesteric liquid crystal elastomers have strong mechanochromic responses that offer attractive opportunities for such applications. Nonetheless, making liquid crystalline elastomer fibres suitable for textiles is challenging since the Plateau–Rayleigh instability tends to break up precursor solutions into droplets. Here, we report a simple approach that balances the viscoelastic properties of the precursor solution to avoid this outcome and achieve long and mechanically robust cholesteric liquid crystal elastomer filaments. These filaments have fast, progressive and reversible mechanochromic responses, from red to blue (wavelength shift of 155 nm), when stretched up to 200%. Moreover, the fibres can be sewed into garments and withstand repeated stretching and regular machine washing. This approach and resulting fibres may be useful for applications in wearable technology and other areas benefiting from autonomous strain sensing or detection of critically strong deformations.
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spelling pubmed-97121102022-12-02 Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles Geng, Yong Kizhakidathazhath, Rijeesh Lagerwall, Jan P. F. Nat Mater Article Mechanically responsive textiles have transformative potential in many areas from fashion to healthcare. Cholesteric liquid crystal elastomers have strong mechanochromic responses that offer attractive opportunities for such applications. Nonetheless, making liquid crystalline elastomer fibres suitable for textiles is challenging since the Plateau–Rayleigh instability tends to break up precursor solutions into droplets. Here, we report a simple approach that balances the viscoelastic properties of the precursor solution to avoid this outcome and achieve long and mechanically robust cholesteric liquid crystal elastomer filaments. These filaments have fast, progressive and reversible mechanochromic responses, from red to blue (wavelength shift of 155 nm), when stretched up to 200%. Moreover, the fibres can be sewed into garments and withstand repeated stretching and regular machine washing. This approach and resulting fibres may be useful for applications in wearable technology and other areas benefiting from autonomous strain sensing or detection of critically strong deformations. Nature Publishing Group UK 2022-09-29 2022 /pmc/articles/PMC9712110/ /pubmed/36175519 http://dx.doi.org/10.1038/s41563-022-01355-6 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Geng, Yong
Kizhakidathazhath, Rijeesh
Lagerwall, Jan P. F.
Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
title Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
title_full Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
title_fullStr Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
title_full_unstemmed Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
title_short Robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
title_sort robust cholesteric liquid crystal elastomer fibres for mechanochromic textiles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9712110/
https://www.ncbi.nlm.nih.gov/pubmed/36175519
http://dx.doi.org/10.1038/s41563-022-01355-6
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