A Motion Interference-Insensitive Flexible Dry Electrode
A Motion Interference-Insensitive Flexible Dry Electrode
复制标题
一种运动干扰不敏感的柔性干电极
DOI：
10.1109/tbme.2015.2485269
复制
发表时间：
2016
影响因子：
4.6
通讯作者：
Chen Hongda
中科院分区：
文献类型：
--
作者：
Zhang He;Pei Weihua;Chen Yuanfang;Guo Xuhong;Wu Xian;Yang Xiaowei;Chen Hongda
Objective: A novel dry electrode is developed to improve the comfortability and the capability of alleviating motion interference by combining microneedles array (MNA) with flexible substrate. Methods: Silicon MNA with sharp tips and limited height is fabricated and transferred ona flexible Polydimethylsiloxane (PDMS) substrate through bonding. Poly (3, 4-ethylenedioxy thiophene) doped with poly (styrenesulfonate) (PEDOT/PSS) is coated on the surface of flexible MNA to form a conductive layer. Results: Flexible dry electrode with 1.2 cm diameter is successfully fabricated. The mean impedance magnitudes (measured on skin) at 10 Hz are 61.2 ± 31.3 kΩ·cm2 for flexible dry electrode, while the values are 114.9 ± 36.1 kΩ·cm2 for wet electrode and 335.7 ± 110.5 kΩ·cm2 for flexible planar dry electrode, respectively. In the process of biopotential recording, the flexible dry electrode has the similar performance as that of wet electrode. It exhibits more stable recording stability than rigid dry electrode in the movement state. Conclusion: By integrating flexible PDMS substrate, sharp and hard MNA structure, as well as PEDOT/PSS coated surface together, a novel dry electrode is developed to meet the comfortable and antimotion interference requirement of wearable equipment. Significance: The novel flexible dry electrode provides a simple and comfortable method to record biopotential signals in daily life.
