Paper Info
Title
Fabrication of Flexible Microneedle Array Electrodes for Wearable Bio-Signal Recording.
Abstract
Laser-direct writing (LDW) and magneto-rheological drawing lithography (MRDL) have been proposed for the fabrication of a flexible microneedle array electrode (MAE) for wearable bio-signal monitoring. Conductive patterns were directly written onto the flexible polyethylene terephthalate (PET) substrate by LDW. The microneedle array was rapidly drawn and formed from the droplets of curable magnetorheological fluid with the assistance of an external magnetic field by MRDL. A flexible MAE can maintain a stable contact interface with curved human skin due to the flexibility of the PET substrate. Compared with Ag/AgCl electrodes and flexible dry electrodes (FDE), the electrode-skin interface impedance of flexible MAE was the minimum even after a 50-cycle bending test. Flexible MAE can record electromyography (EMG), electroencephalography (EEG) and static electrocardiography (ECG) signals with good fidelity. The main features of the dynamic ECG signal recorded by flexible MAE are the most distinguishable with the least moving artifacts. Flexible MAE is an attractive candidate electrode for wearable bio-signal monitoring.
Year
DOI
Venue
2018
10.3390/s18041191
SENSORS
Keywords
Field
DocType
laser-direct writing,magneto-rheological drawing lithography,microneedle array,electrode,bio-signal
Magnetorheological fluid,Wearable computer,Electrical conductor,Electronic engineering,Polyethylene terephthalate,Electrical impedance,Lithography,Engineering,Optoelectronics,Fabrication,Electrode
Journal
Volume
Issue
ISSN
18
4.0
1424-8220
Citations 
PageRank 
References 
0
0.34
3
Authors
8
Name
Order
Citations
PageRank
Lei Ren167.57
Shujia Xu200.34
Jie Gao32174155.61
Zi Lin400.34
Zhipeng Chen5102.31
Bin Liu633.47
Liang Liang79312.93
Lelun Jiang8102.64