Topological MXene Network Enabled Mixed Ion–Electron Conductive Hydrogel Bioelectronics

Mixed ion–electron conductive (MIEC) bioelectronics has emerged as a state-of-the-art type of bioelectronics for bioelectrical signal monitoring. However, existing MIEC bioelectronics is limited by delamination and transmission defects in bioelectrical signals. Herein, a topological MXene network en...

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Bibliographic Details
Published in:ACS nano 2024-02, Vol.18 (5), p.4008-4018
Main Authors: Luo, Jiabei, Zhang, Hong, Sun, Chuanyue, Jing, Yangmin, Li, Kerui, Li, Yaogang, Zhang, Qinghong, Wang, Hongzhi, Luo, Yang, Hou, Chengyi
Format: Article
Language:English
Subjects:
Electric Conductivity
Electricity
Electrons
Hydrogels
Ions
Nitrites
Transition Elements
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Summary:Mixed ion–electron conductive (MIEC) bioelectronics has emerged as a state-of-the-art type of bioelectronics for bioelectrical signal monitoring. However, existing MIEC bioelectronics is limited by delamination and transmission defects in bioelectrical signals. Herein, a topological MXene network enhanced MIEC hydrogel bioelectronics that simultaneously exhibits both electrical and mechanical property enhancement while maintaining adhesion and biocompatibility, providing an ideal MIEC bioelectronics for electrophysiological signal monitoring, is introduced. Compared with nontopology hydrogel bioelectronics, the MXene topology increases the dynamic stability of bioelectronics by a factor of 8.4 and the electrical signal by a factor of 10.1 and reduces the energy dissipation by a factor of 20.2. Besides, the topology-enhanced hydrogel bioelectronics exhibits low impedance (
ISSN:1936-0851
1936-086X
DOI:10.1021/acsnano.3c06209