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https://hdl.handle.net/10356/138675
Title: | Plasticizing silk protein for on-skin stretchable electrodes | Authors: | Chen, Geng Matsuhisa, Naoji Liu, Zhiyuan Qi, Dianpeng Cai, Pingqiang Jiang, Ying Wan, Changjin Cui, Yajing Leow, Wan Ru Liu, Zhuangjian Gong, Suxuan Zhang, Ke-Qin Cheng, Yuan Chen, Xiaodong |
Keywords: | Engineering::Materials | Issue Date: | 2018 | Source: | Chen, G., Matsuhisa, N., Liu, Z., Qi, D., Cai, P., Jiang, Y., . . . Chen, X. (2018). Plasticizing silk protein for on-skin stretchable electrodes. Advanced Materials, 30(21), 1800129-. doi:10.1002/adma.201800129 | Journal: | Advanced Materials | Abstract: | Soft and stretchable electronic devices are important in wearable and implantable applications because of the high skin conformability. Due to the natural biocompatibility and biodegradability, silk protein is one of the ideal platforms for wearable electronic devices. However, the realization of skin-conformable electronic devices based on silk has been limited by the mechanical mismatch with skin, and the difficulty in integrating stretchable electronics. Here, silk protein is used as the substrate for soft and stretchable on-skin electronics. The original high Young's modulus (5-12 GPa) and low stretchability (<20%) are tuned into 0.1-2 MPa and > 400%, respectively. This plasticization is realized by the addition of CaCl2 and ambient hydration, whose mechanism is further investigated by molecular dynamics simulations. Moreover, highly stretchable (>100%) electrodes are obtained by the thin-film metallization and the formation of wrinkled structures after ambient hydration. Finally, the plasticized silk electrodes, with the high electrical performance and skin conformability, achieve on-skin electrophysiological recording comparable to that by commercial gel electrodes. The proposed skin-conformable electronics based on biomaterials will pave the way for the harmonized integration of electronics into human. | URI: | https://hdl.handle.net/10356/138675 | ISSN: | 0935-9648 | DOI: | 10.1002/adma.201800129 | Schools: | School of Materials Science & Engineering | Organisations: | Innovative Centre for Flexible Devices | Rights: | © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | MSE Journal Articles |
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LZY Plasticizing Silk Protein for On-skin Stretchable Electrodes.pdf | 8.24 MB | Adobe PDF | View/Open |
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