DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, Andrew | - |
dc.contributor.author | Han, Hyeonseok | - |
dc.contributor.author | Kim, Dong Sung | - |
dc.date.accessioned | 2021-12-23T05:00:09Z | - |
dc.date.available | 2021-12-23T05:00:09Z | - |
dc.date.created | 2021-08-05 | - |
dc.date.issued | 2021-08 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/108466 | - |
dc.description.abstract | The sea cucumber evolved to bear mutable collagenous tissue (MCT) that enables its elastic modulus to change by a factor of 10 within a few seconds. It does this by controlling the amount of chemical regulator released, which can subsequently form or break hydrogen bonds within the MCT. Although existing water-driven, self-operating, soft actuators have great potential for soft robotics, they remain fragile and slow; ergo, their range of application remains modest. Inspired by MCT, we introduce a programmable, powerful, and ultra-fast water-driven self-operating soft actuator exerting an actuation force of approximately 2 N with an actuation speed of approximately 3 s(-1) in 80 degrees C water based on the dramatic stiffness alteration of bulk poly(N-isopropylacrylamide) hydrogel. This actuator also exhibits outstanding robustness by preserving its original shape over multiple cycles of highly strained (300%) actuations under harsh environments. A simple modulation of cross-linker concentration with its dimensional adjustment enabled the precise tuning of not only the actuation force but also the actuation speed in a wide range. Thus, the soft robotic gripper was able to perform a myriad of intricate tasks such as capturing a fragile object, acting as a biomedical appliance, and closing a large wound with uniform appropriate forces. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.title | A programmable powerful and ultra-fast water-driven soft actuator inspired by the mutable collagenous tissue of the sea cucumber | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/d1ta02566j | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.9, no.29, pp.15937 - 15947 | - |
dc.identifier.wosid | 000667705300001 | - |
dc.citation.endPage | 15947 | - |
dc.citation.number | 29 | - |
dc.citation.startPage | 15937 | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 9 | - |
dc.contributor.affiliatedAuthor | Choi, Andrew | - |
dc.contributor.affiliatedAuthor | Han, Hyeonseok | - |
dc.contributor.affiliatedAuthor | Kim, Dong Sung | - |
dc.identifier.scopusid | 2-s2.0-85111588117 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HYDROGELS | - |
dc.subject.keywordPlus | PROTEIN | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | RECOVERY | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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