Polymer-based candle-shaped microneedle electrodes for electroencephalography on hairy skin

Miyako Arai, Yuta Kudo, Norihisa Miki

研究成果: Article査読

11 被引用数 (Scopus)

抄録

In this paper, we report on the optimization of the shape of dry microneedle electrodes for electroencephalography (EEG) on hairy locations and compare the electrodes we developed with conventional wet electrodes. We propose the use of SU-8-based candle-shaped microneedle electrodes (CMEs), which have pillars of 1.0mm height and 0.4mm diameter with a gap of 0.43mm between pillars. Microneedles are formed on the top of the pillars. The shape was determined by how well the pillars can avoid hairs and support the microneedles to penetrate through the stratum corneum. The skin-electrode contact impedances of the fabricated CMEs were found to be higher and less stable than those of conventional wet electrodes. However, the CMEs successfully acquired signals with qualities as good as those of conventional wet electrodes. Given the usability of the CMEs, which do not require skin preparation or gel, they are promising alternatives to conventional wet electrodes.

本文言語English
論文番号06GP16
ジャーナルJapanese Journal of Applied Physics
55
6
DOI
出版ステータスPublished - 2016 6 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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