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Impedance and electromyographic properties of metal dry bioelectrode with non-uniform surface microstructure

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Abstract

To develop a bioelectrode with excellent electrical performance, laser micromachining was proposed to fabricate a metal dry bioelectrode with a non-uniform surface microstructure. By controlling the scanning path, scanning times, and output power, metal dry bioelectrodes with different types of surface microstructure distribution (uniform and non-uniform) were obtained. Compared with traditional Ag/AgCl wet electrode, the influence of the surface microstructure distribution on the impedance and electromyographic properties of metal dry bioelectrodes was investigated. Results show that the surface microstructure distribution has little influence on the impedance properties of the bioelectrode within the testing time and frequency domains. However, the electromyographic properties of metal dry bioelectrodes with uniform and non-uniform surface microstructures were better than that of conventional Ag/AgCl wet electrodes. The strongest electromyographic signal was obtained using a metal dry bioelectrode with non-uniform surface microstructure.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Project no. 51475397), Science and technology Plan Project of Xiamen City (Project no. 3502Z20173024) and the Natural Science Foundation of Fujian Province of China (No. 2017J06015). In addition, the supports from the Open Fund of Beijing Advanced Innovation Center for Intelligent Robots and Systems (No. 2016IRS21) are also acknowledged.

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Authors and Affiliations

  1. Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen, 361005, China

    Wei Zhou, Yaoyao Li, Shaoyu Liu & Chenying Zhang

  2. School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100080, China

    Haotian She & Jinying Zhu

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  1. Wei Zhou
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  2. Yaoyao Li
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  3. Shaoyu Liu
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Correspondence to Wei Zhou.

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Zhou, W., Li, Y., Liu, S. et al. Impedance and electromyographic properties of metal dry bioelectrode with non-uniform surface microstructure. Appl. Phys. A 124, 754 (2018). https://doi.org/10.1007/s00339-018-2187-z

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