Flexible 3D-Printed EEG Electrodes



Velcescu, Andrei, Lindley, Alexander, Cursio, Ciro, Krachunov, Sammy, Beach, Christopher, Brown, Christopher A ORCID: 0000-0003-1414-2635, Jones, Anthony KP and Casson, Alexander J
(2019) Flexible 3D-Printed EEG Electrodes. SENSORS, 19 (7). E1650-.

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Abstract

For electroencephalography (EEG) in haired regions of the head, finger-based electrodes have been proposed in order to part the hair and make a direct contact with the scalp. Previous work has demonstrated 3D-printed fingered electrodes to allow personalisation and different configurations of electrodes to be used for different people or for different parts of the head. This paper presents flexible 3D-printed EEG electrodes for the first time. A flexible 3D printing element is now used, with three different base mechanical structures giving differently-shaped electrodes. To obtain improved sensing performance, the silver coatings used previously have been replaced with a silver/silver-chloride coating. This results in reduced electrode contact impedance and reduced contact noise. Detailed electro-mechanical testing is presented to demonstrate the performance of the operation of the new electrodes, particularly with regards to changes in conductivity under compression, together with on-person tests to demonstrate the recording of EEG signals.

Item Type: Article
Uncontrolled Keywords: EEG, electrode, 3D printing
Depositing User: Symplectic Admin
Date Deposited: 15 Apr 2019 07:59
Last Modified: 19 Jan 2023 00:54
DOI: 10.3390/s19071650
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3036670