Low-Cost, Low-Impedance Polyimide Based Micro-Needle Array (PI-MNA): A Minimally Invasive Flexible Dry Electrode for Surface Bio-Potential Monitoring

In this work, we propose a minimally invasive dry flexible electrode device containing a micro-needle array entirely based on polyimide (PI-MNA) for surface bio-potential sensing and monitoring. Owing to the spiky tips, extensibility and biocompatibility, the gold-coated PI needles are able to penet...

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Bibliographic Details
Main Authors: Li, Junshi, Shen, Zhengkun, Wang, Hancong, Huang, Dong, Chen, Yufeng, Mou, Qun, Zheng, Fengyi, Liu, Junhua, Li, Zhihong
Format: Conference Proceeding
Language:English
Subjects:
Data processing
Electrodes
Impedance
Monitoring
Needles
Skin
Substrates
Online Access:Request full text
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Summary:In this work, we propose a minimally invasive dry flexible electrode device containing a micro-needle array entirely based on polyimide (PI-MNA) for surface bio-potential sensing and monitoring. Owing to the spiky tips, extensibility and biocompatibility, the gold-coated PI needles are able to penetrate high resistivity stratum corneum to realize low-impedance and nontoxic skin-electrode contact without tedious skin-preparation and severe invasiveness. The PI-MNA was mainly fabricated via twice of conformal moulding technique without any costly or complicated process. A specific data processing system was developed for PI-MNAs, and satisfactory bio-potentials was recorded.
ISSN:2160-1968
DOI:10.1109/MEMSYS.2019.8870653