Double-microcrack coupling stretchable neural electrode for electrophysiological communication
Developing neural electrodes with high stretchability and stable conductivity is a promising method to explore applications of them in biological medicine and electronic skin. However, considering the poor mechanical stretchability of typical conductive materials, maintaining the connection of elect...
| Main Authors: | , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/170637 |
| _version_ | 1824453442388623360 |
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| author | Yang, Dan Tian, Gongwei Liang, Cuiyuan Yang, Zixu Zhao, Qinyi Chen, Jianhui Ma, Cong Jiang, Ying An, Na Liu, Yan Qi, Dianpeng |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Yang, Dan Tian, Gongwei Liang, Cuiyuan Yang, Zixu Zhao, Qinyi Chen, Jianhui Ma, Cong Jiang, Ying An, Na Liu, Yan Qi, Dianpeng |
| author_sort | Yang, Dan |
| collection | NTU |
| description | Developing neural electrodes with high stretchability and stable conductivity is a promising method to explore applications of them in biological medicine and electronic skin. However, considering the poor mechanical stretchability of typical conductive materials, maintaining the connection of electrode conductive paths under high stretching is still a challenge. Herein, for the first time, a double-microcrack coupling strategy for highly stretchable neural electrodes is proposed. Compared with single-layer stretchable microcrack electrodes, the design utilizes the complement between two gold microcrack films to contribute more conductive paths. It shows that the resistance change (R/R0) of the electrode under 100% strain is about 5.6 times, which is much lower than other electrodes and exhibits a high stretchability of ≈200%. Simultaneously, this design is an encapsulation-free design which avoids the electrode performance degradation caused by encapsulation. Furthermore, it is found that the adhesion strength between metal electrode and substrate is critical to the stretchability and stability of electrodes, so polydimethylsiloxane0.9-isophorone diisocyanate elastomer (PDMS0.9-IPDI), whose adhesion to gold electrode is 4.5 times higher than that of the commercial polydimethylsiloxane (PDMS), is synthesized. Finally, the electrophysiological communication between different organisms by electrodes is successfully demonstrated. |
| first_indexed | 2024-10-01T08:00:23Z |
| format | Journal Article |
| id | ntu-10356/170637 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T08:00:23Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1706372023-09-25T02:30:15Z Double-microcrack coupling stretchable neural electrode for electrophysiological communication Yang, Dan Tian, Gongwei Liang, Cuiyuan Yang, Zixu Zhao, Qinyi Chen, Jianhui Ma, Cong Jiang, Ying An, Na Liu, Yan Qi, Dianpeng School of Materials Science and Engineering Engineering::Materials Electrophysiological Signals Flexible Electrodes Developing neural electrodes with high stretchability and stable conductivity is a promising method to explore applications of them in biological medicine and electronic skin. However, considering the poor mechanical stretchability of typical conductive materials, maintaining the connection of electrode conductive paths under high stretching is still a challenge. Herein, for the first time, a double-microcrack coupling strategy for highly stretchable neural electrodes is proposed. Compared with single-layer stretchable microcrack electrodes, the design utilizes the complement between two gold microcrack films to contribute more conductive paths. It shows that the resistance change (R/R0) of the electrode under 100% strain is about 5.6 times, which is much lower than other electrodes and exhibits a high stretchability of ≈200%. Simultaneously, this design is an encapsulation-free design which avoids the electrode performance degradation caused by encapsulation. Furthermore, it is found that the adhesion strength between metal electrode and substrate is critical to the stretchability and stability of electrodes, so polydimethylsiloxane0.9-isophorone diisocyanate elastomer (PDMS0.9-IPDI), whose adhesion to gold electrode is 4.5 times higher than that of the commercial polydimethylsiloxane (PDMS), is synthesized. Finally, the electrophysiological communication between different organisms by electrodes is successfully demonstrated. The authors acknowledged funding support from the National Natural Science Foundation of China (Grant No. 52173237) and the Fundamental Research Funds for the Central Universities (Grant No. HIT.OCEF.2022018). Interdisciplinary Research Foundation of HIT (No. IR2021207); Project of National Center for International Research on Intelligent Nano-Materials and Detection Technology in Environmental Protection, Soochow University (No. SDGH2105); The Open Project Program (No. PEBM202107) of Key Laboratory for Photonic and Electric Bandgap Materials, Ministry of Education. 2023-09-25T02:30:15Z 2023-09-25T02:30:15Z 2023 Journal Article Yang, D., Tian, G., Liang, C., Yang, Z., Zhao, Q., Chen, J., Ma, C., Jiang, Y., An, N., Liu, Y. & Qi, D. (2023). Double-microcrack coupling stretchable neural electrode for electrophysiological communication. Advanced Functional Materials, 33(37), 2300412-. https://dx.doi.org/10.1002/adfm.202300412 1616-301X https://hdl.handle.net/10356/170637 10.1002/adfm.202300412 2-s2.0-85159927066 37 33 2300412 en Advanced Functional Materials © 2023 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Engineering::Materials Electrophysiological Signals Flexible Electrodes Yang, Dan Tian, Gongwei Liang, Cuiyuan Yang, Zixu Zhao, Qinyi Chen, Jianhui Ma, Cong Jiang, Ying An, Na Liu, Yan Qi, Dianpeng Double-microcrack coupling stretchable neural electrode for electrophysiological communication |
| title | Double-microcrack coupling stretchable neural electrode for electrophysiological communication |
| title_full | Double-microcrack coupling stretchable neural electrode for electrophysiological communication |
| title_fullStr | Double-microcrack coupling stretchable neural electrode for electrophysiological communication |
| title_full_unstemmed | Double-microcrack coupling stretchable neural electrode for electrophysiological communication |
| title_short | Double-microcrack coupling stretchable neural electrode for electrophysiological communication |
| title_sort | double microcrack coupling stretchable neural electrode for electrophysiological communication |
| topic | Engineering::Materials Electrophysiological Signals Flexible Electrodes |
| url | https://hdl.handle.net/10356/170637 |
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