Biomimetic Thermal-sensitive Multi-transform Actuatoropen access
- Authors
- Kim, Tae Hyeob; Choi, Jung Gi; Byun, Ju Young; Jang, Yong woo; Kim, Sung Min; Spinks, Geoffrey. M.; Kim, Seon Jeong
- Issue Date
- May-2019
- Publisher
- NATURE PUBLISHING GROUP
- Citation
- SCIENTIFIC REPORTS, v.9, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENTIFIC REPORTS
- Volume
- 9
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/14179
- DOI
- 10.1038/s41598-019-44394-x
- ISSN
- 2045-2322
- Abstract
- 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-PNI PAM) 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.
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- Appears in
Collections - 서울 예술·체육대학 > 서울 체육학과 > 1. Journal Articles
- 서울 의과대학 > 서울 약리학교실 > 1. Journal Articles
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