Hierarchically Structured Flexible Electrode on Polyimide for Highly Sensitive and Reliable Biosignal Acquisition
SCIE
SCOPUS
- Title
- Hierarchically Structured Flexible Electrode on Polyimide for Highly Sensitive and Reliable Biosignal Acquisition
- Authors
- Jeung, Jinpyeo; Yun, Inyeol; Kim, Yunsik; Seong, Suwon; Chung, Yoonyoung
- Date Issued
- 2022-02
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Abstract
- Numerous wearable biomedical devices are developed for the continuous monitoring of personal health or condition. Biosignals acquisition with high sensitivity is important for designing wearable biomedical devices. A sensing electrode between the human body and wearable electronics significantly affects the sensitivity of the sensors. In this study, we fabricated hierarchically structured flexible electrodes on polyimide substrate (HSFE-PI) using micro-casting technique and gold nanoparticles electrodeposition. Polyimides provides robust and outstanding electrical characteristics, and the reliability of HSFE-PI was verified with a cyclic bending test. The integration of hierarchical structures significantly increased the surface area of the electrode by 2.06 times. We applied the HSFE-PI for electromyogram (EMG) and glucose sensing applications and achieved high sensitivity enhancement in both applications. The signal-to-noise ratio (SNR) of measured EMG signals was increased by 2.48 times, and the sensitivity of the glucose detection was increased by 1.42 times compared to the planar counterpart.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/109844
- DOI
- 10.1109/access.2022.3152533
- ISSN
- 2169-3536
- Article Type
- Article
- Citation
- IEEE Access, vol. 10, page. 19710 - 19719, 2022-02
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- There are no files associated with this item.
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