A Bioinspired, Durable, and Nondisposable Transparent
Graphene Skin Electrode for Electrophysiological Signal Detection
Posted on 2020-07-21 - 20:16
Graphene,
with its properties of intrinsic flexibility, reliable
electrical performance, and high chemical stability, is highly desirable
as bioelectrodes for detecting electrophysiological signals. However,
its mechanical properties limit its application to a great extentenergy
dissipation mechanisms are not provided by the carbon network for
external strain and it easily cracks. Herein, inspired by the very
structure of the avian nest, we report a durable and nondisposable
transparent graphene skin electrode for detecting electrophysiological
signals, which was fabricated by semi-embedding highly graphitized
electrospun fiber/monolayer graphene (GFG) into soft elastomer. Because
of the semi-embedded structure and strong interaction between annealed
electrospun fiber and graphene through graphitization, as-fabricated
conductive film demonstrated high conductivity and transparency (∼150
Ω/□ at 83% transmittance), as well as a stable electrical
performance under mechanical vibrations (strain, peel-off, stir, etc.).
It can be used to reliably collect vital biometric signals, such as
electrocardiogram (ECG), surface electromyogram (sEMG), and electroencephalogram
(EEG). Furthermore, the semi-embedded GFG in the elastomer demonstrated
excellent washability (rinsing/stirring in water) and repeatability
(∼10 repeats) with high signal-to-noise ratio (up to 30 dB)
while detecting sEMG. This is the first report of durable and transparent
graphene skin electrode for biometric signals detection, revealing
potential opportunities in wearable healthcare applications.
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3 Biotech
3D Printing in Medicine
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Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
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Qiu, Jiakang; Yu, Tianhao; Zhang, Weifeng; Zhao, Zihan; Zhang, Yan; Ye, Guo; et al. (2020). A Bioinspired, Durable, and Nondisposable Transparent
Graphene Skin Electrode for Electrophysiological Signal Detection. ACS Publications. Collection. https://doi.org/10.1021/acsmaterialslett.0c00203
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AUTHORS (19)
JQ
Jiakang Qiu
TY
Tianhao Yu
WZ
Weifeng Zhang
ZZ
Zihan Zhao
YZ
Yan Zhang
GY
Guo Ye
YZ
Yan Zhao
XD
Xiaojia Du
XL
Xu Liu
LY
Lu Yang
LZ
Lijuan Zhang
SQ
Shuyan Qi
QT
Qishuo Tan
XG
Xinyu Guo
GL
Guanmeng Li
SG
Shaoshi Guo
HS
Huiyuan Sun
DW
Di Wei
NL
Nan Liu