Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics
Soft electronics that seamlessly interface with skin are of great interest in health monitoring and human–machine interfaces. However, achieving mechanical softness, skin adhesiveness, and high conductivity concurrently has always been a major challenge due to the difficulty in bonding dissimilar ma...
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sg-ntu-dr.10356-1429882023-07-14T15:50:25Z Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics Pan, Shaowu Zhang, Feilong Cai, Pingqiang Wang, Ming He, Ke Luo, Yifei Li, Zheng Chen, Geng Ji, Shaobo Liu, Zhihua Loh, Xian Jun Chen, Xiaodong School of Materials Science and Engineering Innovative Center for Flexible Devices Institute of Materials Research and Engineering, A*STAR Engineering::Materials Electrophysiological Signals Hybrid Electrod Soft electronics that seamlessly interface with skin are of great interest in health monitoring and human–machine interfaces. However, achieving mechanical softness, skin adhesiveness, and high conductivity concurrently has always been a major challenge due to the difficulty in bonding dissimilar materials while retaining their respective properties. Herein, the mechanically interlocked hydrogel–elastomer hybrid is reported as a viable solution to this problem. Hydrogels with low moduli and high adhesiveness are employed as the substrate, while porous elastomer webs are used as matrices to load conductive films and lock the hydrogels through a mechanically interlocked structure. The bonding strength between the hydrogel and elastomer in the interlocking hybrid structure is 14.3 times of that obtained via the physical stacking method. As a proof of concept, interlocking hybrids are used as on-skin electrodes for electrophysiological signal recording including electromyography and electrocardiography. The robust hybrid electrodes are able to detect signals after multiple cycles. The proposed strategy not only is an effective approach to achieve interlocking structures, but also provides a new perspective for soft and stretchable electronics. MOE (Min. of Education, S’pore) Accepted version 2020-07-17T06:52:38Z 2020-07-17T06:52:38Z 2020 Journal Article Pan, S., Zhang, F., Cai, P., Wang, M., He, K., Luo, Y., . . . Chen, X. (2020). Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics. Advanced Functional Materials, 30(29), 1909540-. doi:10.1002/adfm.201909540 1616-301X https://hdl.handle.net/10356/142988 10.1002/adfm.201909540 2-s2.0-85078908251 29 30 1909540 (1 of 9) 1909540 (9 of 9) en Advanced Functional Materials This is the accepted version of the following article: Pan, S., Zhang, F., Cai, P., Wang, M., He, K., Luo, Y., . . . Chen, X. (2020). Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics. Advanced Functional Materials, 30(29), 1909540-, which has been published in final form at http://doi.org.remotexs.ntu.edu.sg/10.1002/adfm.201909540. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html]. application/pdf |
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Engineering::Materials Electrophysiological Signals Hybrid Electrod Pan, Shaowu Zhang, Feilong Cai, Pingqiang Wang, Ming He, Ke Luo, Yifei Li, Zheng Chen, Geng Ji, Shaobo Liu, Zhihua Loh, Xian Jun Chen, Xiaodong Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
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Soft electronics that seamlessly interface with skin are of great interest in health monitoring and human–machine interfaces. However, achieving mechanical softness, skin adhesiveness, and high conductivity concurrently has always been a major challenge due to the difficulty in bonding dissimilar materials while retaining their respective properties. Herein, the mechanically interlocked hydrogel–elastomer hybrid is reported as a viable solution to this problem. Hydrogels with low moduli and high adhesiveness are employed as the substrate, while porous elastomer webs are used as matrices to load conductive films and lock the hydrogels through a mechanically interlocked structure. The bonding strength between the hydrogel and elastomer in the interlocking hybrid structure is 14.3 times of that obtained via the physical stacking method. As a proof of concept, interlocking hybrids are used as on-skin electrodes for electrophysiological signal recording including electromyography and electrocardiography. The robust hybrid electrodes are able to detect signals after multiple cycles. The proposed strategy not only is an effective approach to achieve interlocking structures, but also provides a new perspective for soft and stretchable electronics. |
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School of Materials Science and Engineering |
author_facet |
School of Materials Science and Engineering Pan, Shaowu Zhang, Feilong Cai, Pingqiang Wang, Ming He, Ke Luo, Yifei Li, Zheng Chen, Geng Ji, Shaobo Liu, Zhihua Loh, Xian Jun Chen, Xiaodong |
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Article |
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Pan, Shaowu Zhang, Feilong Cai, Pingqiang Wang, Ming He, Ke Luo, Yifei Li, Zheng Chen, Geng Ji, Shaobo Liu, Zhihua Loh, Xian Jun Chen, Xiaodong |
author_sort |
Pan, Shaowu |
title |
Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
title_short |
Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
title_full |
Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
title_fullStr |
Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
title_full_unstemmed |
Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
title_sort |
mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics |
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2020 |
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https://hdl.handle.net/10356/142988 |
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1772827011515940864 |