TY - JOUR
T1 - Porous liquid metal–elastomer composites with high leakage resistance and antimicrobial property for skin-interfaced bioelectronics
AU - Xu, Yadong
AU - Su, Yajuan
AU - Xu, Xianchen
AU - Arends, Brian
AU - Zhao, Ganggang
AU - Ackerman, Daniel N.
AU - Huang, Henry
AU - Reid, St Patrick
AU - Santarpia, Joshua L.
AU - Kim, Chansong
AU - Chen, Zehua
AU - Mahmoud, Sana
AU - Ling, Yun
AU - Brown, Alexander
AU - Chen, Qian
AU - Huang, Guoliang
AU - Xie, Jingwei
AU - Yan, Zheng
N1 - Publisher Copyright:
Copyright © 2023 The Authors, some rights reserved.
PY - 2023/1
Y1 - 2023/1
N2 - Liquid metal–elastomer composite is a promising soft conductor for skin-interfaced bioelectronics, soft robots, and others due to its large stretchability, ultrasoftness, high electrical conductivity, and mechanical-electrical decoupling. However, it often suffers from deformation-induced leakage, which can smear skin, deteriorate device performance, and cause circuit shorting. Besides, antimicrobial property is desirable in soft conductors to minimize microbial infections. Here, we report phase separation–based synthesis of porous liquid metal–elastomer composites with high leakage resistance and antimicrobial property, together with large stretchability, tissue-like compliance, high and stable electrical conductivity over deformation, high breathability, and magnetic resonance imaging compatibility. The porous structures can minimize leakage through damping effects and lower percolation thresholds to reduce liquid metal usage. In addition, epsilon polylysine is loaded into elastic matrices during phase separation to provide antimicrobial property. The enabled skin-interfaced bioelectronics can monitor cardiac electrical and mechanical activities and offer electrical stimulations in a mechanically imperceptible and electrically stable manner even during motions.
AB - Liquid metal–elastomer composite is a promising soft conductor for skin-interfaced bioelectronics, soft robots, and others due to its large stretchability, ultrasoftness, high electrical conductivity, and mechanical-electrical decoupling. However, it often suffers from deformation-induced leakage, which can smear skin, deteriorate device performance, and cause circuit shorting. Besides, antimicrobial property is desirable in soft conductors to minimize microbial infections. Here, we report phase separation–based synthesis of porous liquid metal–elastomer composites with high leakage resistance and antimicrobial property, together with large stretchability, tissue-like compliance, high and stable electrical conductivity over deformation, high breathability, and magnetic resonance imaging compatibility. The porous structures can minimize leakage through damping effects and lower percolation thresholds to reduce liquid metal usage. In addition, epsilon polylysine is loaded into elastic matrices during phase separation to provide antimicrobial property. The enabled skin-interfaced bioelectronics can monitor cardiac electrical and mechanical activities and offer electrical stimulations in a mechanically imperceptible and electrically stable manner even during motions.
UR - http://www.scopus.com/inward/record.url?scp=85145870324&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85145870324&partnerID=8YFLogxK
U2 - 10.1126/sciadv.adf0575
DO - 10.1126/sciadv.adf0575
M3 - Article
C2 - 36608138
AN - SCOPUS:85145870324
SN - 2375-2548
VL - 9
JO - Science Advances
JF - Science Advances
IS - 1
M1 - eadf0575
ER -