Journal
MATERIALS RESEARCH EXPRESS
Volume 6, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/ab20a7
Keywords
EEG; graphene; dry electrode; low impedance; flexibility
Categories
Funding
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2015jcyjA50016]
- Youth Innovation Promotion Association of CAS [2015316]
- Project of Chongqing brain science Collaborative Innovation Center
- CAS Western Light Program 2015
- Project of CQCSTC [cstc2016jcyjA0314, cstc2017zdcy-zdyfX0001]
- Project of CAS Western Young Scholar
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In order to realistically collect Electroencephalogram (EEG) signals in complicated environments, low impedance and flexibility are considered as two crucial characteristics for EEG electrode. We designed and manufactured a type of dry EEG electrode based on graphene with matrix micro-pyramid structure on the surface. This EEG electrode could not only reduce the contact impedance, but also improve the stability of the electrode. Furthermore, based on these flexible graphene EEG electrodes, we assembled a system that could monitor human EEG signals in real time. When a tested person was answering the phone or driving while tired, the system could give him appropriate warnings, so as to reduce the occurrence of accidents. This brain-computer interface system was wearable and suitable for intelligent detection of EEG signals.
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