Plasticizing Silk Protein for On-Skin Stretchable Electrodes

Plasticizing Silk Protein for On-Skin Stretchable Electrodes

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 21 vom: 23. Mai, Seite e1800129
1. Verfasser: Chen, Geng (VerfasserIn)
Weitere Verfasser: 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
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article biomaterials molecular dynamics simulations on-skin electronics silk proteins stretchable electronics Biocompatible Materials Silk
Beschreibung
Zusammenfassung:© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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
Beschreibung:Date Completed 07.03.2019
Date Revised 30.09.2020
published: Print-Electronic
Citation Status MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.201800129