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ACS Appl Mater Interfaces. 2018 Jun 27;10(25):21184-21190. doi: 10.1021/acsami.8b06484. Epub 2018 Jun 14.

Flexible Conductive Composite Integrated with Personal Earphone for Wireless, Real-Time Monitoring of Electrophysiological Signs.

Author information

1
KU-KIST Graduate School of Converging Science and Technology , Korea University , 145, Anam-road , Seongbuk-gu, Seoul 02841 , Republic of Korea.
2
Korea Institute of Carbon Convergence Technology , 110-11, Ballyong-road , Deokjin-gu, Jeonju 54853 , Republic of Korea.
3
School of Electrical Engineering , Kookmin University , 77, Jeongneung-road , Seongbuk-gu, Seoul 02707 , Republic of Korea.
4
Department of Biomedical Engineering, College of Health Science , Korea University , 145, Anam-ro , Seongbuk-gu, Seoul , 02841 , Republic of Korea.

Abstract

We introduce optimized elastomeric conductive electrodes using a mixture of silver nanowires (AgNWs) with carbon nanotubes/polydimethylsiloxane (CNTs/PDMS), to build a portable earphone type of wearable system that is designed to enable recording electrophysiological activities as well as listening to music at the same time. A custom-built, plastic frame integrated with soft, deformable fabric-based memory foam of earmuffs facilitates essential electronic components, such as conductive elastomers, metal strips, signal transducers and a speaker. Such platform incorporates with accessory cables to attain wireless, real-time monitoring of electrical potentials whose information can be displayed on a cell phone during outdoor activities and music appreciation. Careful evaluations on experimental results reveal that the performance of fabricated dry electrodes are comparable to that of commercial wet electrodes, and position-dependent signal behaviors provide a route toward accomplishing maximized signal quality. This research offers a facile approach for a wearable healthcare monitor via integration of soft electronic constituents with personal belongings.

KEYWORDS:

EEG recordings; elastomeric composites; flexible; wearable electronics; wireless

PMID:
29869498
DOI:
10.1021/acsami.8b06484
[Indexed for MEDLINE]

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