A combination of logical judging circuit and water-resistant ultrathin film PEDOT: PSS electrode for noninvasive ECG measurement

Kewei Song, Kayo Hirose, Kioto Niitsu, Tsubasa Sui, Hiroto Kojima, Toshinori Fujie*, Shinjiro Umezu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Heart disease-related deaths have increased in recent decades, with most patients dying of sudden cardiac arrest. In such instances, the effect of regular electrocardiogram (ECG) measurements is minimal. Therefore, long-term ECG monitoring has become increasingly important. In this paper, we report a non-adhesive high accuracy ECG monitoring system that can be used in various scenarios without interfering with daily activities. The ECG ultra-thin film electrode is made by water-resistant material based on poly(3,4-ethylenedioxythiophene) poly(4-styrenesulfonate) (PEDOT: PSS) electrode doped with ethylene glycol (EG) and xylitol, to improve the noise signal caused by sweat. The optimal ratio of the three ingredients of PEDOT: PSS/xylitol/EG was determined experimentally to accommodate the ECG monitoring. By using the proposed selectively closed multi-channel single-lead logic circuit, the noise of ECG signal received from the proposed film electrode can be successfully reduced during broad-area electrode measurements, thus to improve ECG measurement accuracy.

Original languageEnglish
Article number45
JournalDiscover Nano
Volume19
Issue number1
DOIs
Publication statusPublished - 2024 Dec

Keywords

  • ECG monitoring
  • Logical judging circuit
  • Non-adhesive
  • PEDOT: PSS
  • Water resistance

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics

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