Abstract
This work demonstrated a dry electrode for electrocardiogram (ECG) monitoring based on graphene-coated cotton fabric by screen printing process. The cotton fabric was fully covered by the graphene flakes, which makes the sheet resistance of cotton fabric reaches as low as 42.2 Ω/sq. The ECG signals obtained from the graphene-coated textile electrode show comparable performance with the Ag/AgCl electrode under both sitting, standing, and rotating conditions. The Pearson correlation coefficient between the conventional commercial electrode and the graphene-coated textile electrode is 99.47%. The graphene-coated textile electrode exhibited an excellent flexibility with an increase resistance of 4.5% after 1000 bending cycles. The graphene-coated textile electrode after bending showed good performance for ECG signal acquisition.
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