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Jeong, Hoon Eui
Multiscale Biomimetics and Manufacturing Lab.
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Flexible and shape-reconfigurable hydrogel interlocking adhesive for high adhesion in wet environments

Author(s)
Park, Hyun HaSeong, MinhoSun, KahyunKo, HangilJeong, Hoon Eui
Issued Date
2017-12-06
URI
https://scholarworks.unist.ac.kr/handle/201301/36658
Citation
The 10th International Conference on Advanced Materials and Devices (iCAMD 2017)
Abstract
We present wet-responsive, shape-reconfigurable and flexible adhesives that exert strong adhesion under wet environments based on a reversible interlocking between reconfigurable hydrogel microhook arrays. Based on the hydration-triggered shape reconfiguration of the hydrogel microstructures, the adhesions between interlocked microhook arrays were greatly elaborated under wet conditions. Furthermore, the wet adhesion was monotonically increased with water-exposure time. The maximum adhesion force as high as ~79.9 N cm-2 in the shear direction was obtained with the hydrogel microhook array after 20 h swelling. A biomedical bandage utilizing the hydrogel microhooks was proposed as an example of the possible applications.
Publisher
The Korean Physical Society

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