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Biomimetic Thermal-sensitive Multi-transform Actuator
Controllable and miniaturised mechanical actuation is one of the main challenges facing various emerging technologies, such as soft robotics, drug delivery systems, and microfluidics. Here we introduce a simple method for constructing actuating devices with programmable complex motions. Thermally re...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6536525/ https://www.ncbi.nlm.nih.gov/pubmed/31133734 http://dx.doi.org/10.1038/s41598-019-44394-x |
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author | Kim, Tae Hyeob Choi, Jung Gi Byun, Ju Young Jang, Yongwoo Kim, Sung Min Spinks, Geoffrey. M. Kim, Seon Jeong |
author_facet | Kim, Tae Hyeob Choi, Jung Gi Byun, Ju Young Jang, Yongwoo Kim, Sung Min Spinks, Geoffrey. M. Kim, Seon Jeong |
author_sort | Kim, Tae Hyeob |
collection | PubMed |
description | Controllable and miniaturised mechanical actuation is one of the main challenges facing various emerging technologies, such as soft robotics, drug delivery systems, and microfluidics. Here we introduce a simple method for constructing actuating devices with programmable complex motions. Thermally responsive hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) and its functionalized derivatives (f-PNIPAM) were used to control the lower critical solution temperature (LCST) or the temperature at which the gel volume changes. Techniques for ultra-violet crosslinking the monomer solutions were developed to generate gel sheets with controllable crosslink density gradients that allowed bending actuation to specified curvatures by heating through the LCST. Simple molding processes were then used to construct multi-transform devices with complex shape changes, including a bioinspired artificial flower that shows blossoming and reverse blossoming with a change in temperature. |
format | Online Article Text |
id | pubmed-6536525 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-65365252019-06-06 Biomimetic Thermal-sensitive Multi-transform Actuator Kim, Tae Hyeob Choi, Jung Gi Byun, Ju Young Jang, Yongwoo Kim, Sung Min Spinks, Geoffrey. M. Kim, Seon Jeong Sci Rep Article Controllable and miniaturised mechanical actuation is one of the main challenges facing various emerging technologies, such as soft robotics, drug delivery systems, and microfluidics. Here we introduce a simple method for constructing actuating devices with programmable complex motions. Thermally responsive hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) and its functionalized derivatives (f-PNIPAM) were used to control the lower critical solution temperature (LCST) or the temperature at which the gel volume changes. Techniques for ultra-violet crosslinking the monomer solutions were developed to generate gel sheets with controllable crosslink density gradients that allowed bending actuation to specified curvatures by heating through the LCST. Simple molding processes were then used to construct multi-transform devices with complex shape changes, including a bioinspired artificial flower that shows blossoming and reverse blossoming with a change in temperature. Nature Publishing Group UK 2019-05-27 /pmc/articles/PMC6536525/ /pubmed/31133734 http://dx.doi.org/10.1038/s41598-019-44394-x Text en © The Author(s) 2019 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/. |
spellingShingle | Article Kim, Tae Hyeob Choi, Jung Gi Byun, Ju Young Jang, Yongwoo Kim, Sung Min Spinks, Geoffrey. M. Kim, Seon Jeong Biomimetic Thermal-sensitive Multi-transform Actuator |
title | Biomimetic Thermal-sensitive Multi-transform Actuator |
title_full | Biomimetic Thermal-sensitive Multi-transform Actuator |
title_fullStr | Biomimetic Thermal-sensitive Multi-transform Actuator |
title_full_unstemmed | Biomimetic Thermal-sensitive Multi-transform Actuator |
title_short | Biomimetic Thermal-sensitive Multi-transform Actuator |
title_sort | biomimetic thermal-sensitive multi-transform actuator |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6536525/ https://www.ncbi.nlm.nih.gov/pubmed/31133734 http://dx.doi.org/10.1038/s41598-019-44394-x |
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