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Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles
Hygromorph artificial muscles are attractive as self-powered actuators driven by moisture from the ambient environment. Previously reported hygromorph muscles have been largely limited to bending or torsional motions or as tensile actuators with low work and energy densities. Herein, we developed a...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4789747/ https://www.ncbi.nlm.nih.gov/pubmed/26973137 http://dx.doi.org/10.1038/srep23016 |
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author | Kim, Shi Hyeong Kwon, Cheong Hoon Park, Karam Mun, Tae Jin Lepró, Xavier Baughman, Ray H. Spinks, Geoffrey M. Kim, Seon Jeong |
author_facet | Kim, Shi Hyeong Kwon, Cheong Hoon Park, Karam Mun, Tae Jin Lepró, Xavier Baughman, Ray H. Spinks, Geoffrey M. Kim, Seon Jeong |
author_sort | Kim, Shi Hyeong |
collection | PubMed |
description | Hygromorph artificial muscles are attractive as self-powered actuators driven by moisture from the ambient environment. Previously reported hygromorph muscles have been largely limited to bending or torsional motions or as tensile actuators with low work and energy densities. Herein, we developed a hybrid yarn artificial muscle with a unique coiled and wrinkled structure, which can be actuated by either changing relative humidity or contact with water. The muscle provides a large tensile stroke (up to 78%) and a high maximum gravimetric work capacity during contraction (2.17 kJ kg(−1)), which is over 50 times that of the same weight human muscle and 5.5 times higher than for the same weight spider silk, which is the previous record holder for a moisture driven muscle. We demonstrate an automatic ventilation system that is operated by the tensile actuation of the hybrid muscles caused by dew condensing on the hybrid yarn. This self-powered humidity-controlled ventilation system could be adapted to automatically control the desired relative humidity of an enclosed space. |
format | Online Article Text |
id | pubmed-4789747 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-47897472016-03-16 Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles Kim, Shi Hyeong Kwon, Cheong Hoon Park, Karam Mun, Tae Jin Lepró, Xavier Baughman, Ray H. Spinks, Geoffrey M. Kim, Seon Jeong Sci Rep Article Hygromorph artificial muscles are attractive as self-powered actuators driven by moisture from the ambient environment. Previously reported hygromorph muscles have been largely limited to bending or torsional motions or as tensile actuators with low work and energy densities. Herein, we developed a hybrid yarn artificial muscle with a unique coiled and wrinkled structure, which can be actuated by either changing relative humidity or contact with water. The muscle provides a large tensile stroke (up to 78%) and a high maximum gravimetric work capacity during contraction (2.17 kJ kg(−1)), which is over 50 times that of the same weight human muscle and 5.5 times higher than for the same weight spider silk, which is the previous record holder for a moisture driven muscle. We demonstrate an automatic ventilation system that is operated by the tensile actuation of the hybrid muscles caused by dew condensing on the hybrid yarn. This self-powered humidity-controlled ventilation system could be adapted to automatically control the desired relative humidity of an enclosed space. Nature Publishing Group 2016-03-14 /pmc/articles/PMC4789747/ /pubmed/26973137 http://dx.doi.org/10.1038/srep23016 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Kim, Shi Hyeong Kwon, Cheong Hoon Park, Karam Mun, Tae Jin Lepró, Xavier Baughman, Ray H. Spinks, Geoffrey M. Kim, Seon Jeong Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles |
title | Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles |
title_full | Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles |
title_fullStr | Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles |
title_full_unstemmed | Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles |
title_short | Bio-inspired, Moisture-Powered Hybrid Carbon Nanotube Yarn Muscles |
title_sort | bio-inspired, moisture-powered hybrid carbon nanotube yarn muscles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4789747/ https://www.ncbi.nlm.nih.gov/pubmed/26973137 http://dx.doi.org/10.1038/srep23016 |
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