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Electrothermal soft manipulator enabling safe transport and handling of thin cell/tissue sheets and bioelectronic devices

Authors
Kim Byoung SooKim, Min KuCho YounghakHamed Eman E.Gillette Martha U.Cha HyeongyunMiljkovic NenadAakalu Vinay K.Kang KaiSon Kyung-NoSchachtschneider Kyle M.Schook Lawrence B.Hu ChenfeiPopescu GabrielPark YeonsooBallance William C.Yu SeunggunIm Sung GapLee JonghwiLee Chi HwanKong Hyunjoon
Issue Date
Oct-2020
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Citation
SCIENCE ADVANCES, v.6, no.42, pp.1 - 11
Indexed
SCIE
SCOPUS
Journal Title
SCIENCE ADVANCES
Volume
6
Number
42
Start Page
1
End Page
11
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/191400
DOI
10.1126/sciadv.abc5630
ISSN
2375-2548
Abstract
"Living" cell sheets or bioelectronic chips have great potentials to improve the quality of diagnostics and therapies. However, handling these thin and delicate materials remains a grand challenge because the external force applied for gripping and releasing can easily deform or damage the materials. This study presents a soft manipulator that can manipulate and transport cell/tissue sheets and ultrathin wearable biosensing devices seamlessly by recapitulating how a cephalopod's suction cup works. The soft manipulator consists of an ultrafast thermo-responsive, microchanneled hydrogel layer with tissue-like softness and an electric heater layer. The electric current to the manipulator drives microchannels of the gel to shrink/expand and results in a pressure change through the microchannels. The manipulator can lift/detach an object within 10 s and can be used repeatedly over 50 times. This soft manipulator would be highly useful for safe and reliable assembly and implantation of therapeutic cell/tissue sheets and biosensing devices.
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