Paper Info
Title
Highly Stretchable Electrodes Based on Gold Films with Cyclic Stability for Electrocorticogram Recordings
Abstract
Stretchable electrodes have expanding applications in the areas of human-machine interface, biomedical devices and smart wearables. Due to the demanding requirements of various applications, it is desirable for the stretchable electrodes to have excellent performances such as stretchability and cyclic stability since electrodes are often subject to cyclic strain in working conditions. In this work, we developed a type of highly stretchable electrodes based on gold films and elastic substrates. With an improved fabrication process, stretchability larger than 110% was achieved due to the characteristic microstructure of micro and nano cracks in gold films. The electrodes showed a great cyclic stability with repeatable and stable resistance-strain response for more than 1000 times under the cyclic strain of 80%. In addition, microelectrode arrays were also fabricated by using the above technique. With the microelectrode arrays implanted on the surface of brain cortex of rats, clear electrocorticogram (ECoG) with a high spatial resolution was recorded. This preliminary work demonstrated that the novel stretchable electrodes and microelectrode arrays would have a great application potential in the area of neural-machine interface and bioelectronics.
Year
DOI
Venue
2018
10.1109/CBS.2018.8612209
2018 IEEE International Conference on Cyborg and Bionic Systems (CBS)
Keywords
Field
DocType
Stretchable electronics,gold film,cyclic strain,electrocorticogram,ECoG,neural-machine interface
Bioelectronics,Microstructure,Optoelectronics,Nano-,Materials science,Microelectrode,Electrode,Fabrication
Conference
ISBN
Citations 
PageRank 
978-1-5386-7356-0
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Yang Zhao1836116.78
Mei Yu2132.92
Guanglin Li331457.23
Peng Fang43015.63