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Stretchable Dry Electrodes with Concentric Ring Geometry for Enhancing Spatial Resolution in Electrophysiology
Author(s) -
Wang Kaiping,
Parekh Udit,
Pailla Tejaswy,
Garudadri Harinath,
Gilja Vikash,
Ng Tse Nga
Publication year - 2017
Publication title -
advanced healthcare materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.288
H-Index - 90
eISSN - 2192-2659
pISSN - 2192-2640
DOI - 10.1002/adhm.201700552
Subject(s) - materials science , electrode , stencil , image resolution , electrophysiology , concentric , noise (video) , layer (electronics) , biomedical engineering , nanotechnology , optics , computer science , artificial intelligence , geometry , physics , medicine , mathematics , computational science , quantum mechanics , image (mathematics)
The multichannel concentric‐ring electrodes are stencil printed on stretchable elastomers modified to improve adhesion to skin and minimize motion artifacts for electrophysiological recordings of electroencephalography, electromyography, and electrocardiography. These dry electrodes with a poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate interface layer are optimized to show lower noise level than that of commercial gel disc electrodes. The concentric ring geometry enables Laplacian filtering to pinpoint the bioelectric potential source with spatial resolution determined by the ring distance. This work shows a new fabrication approach to integrate and create designs that enhance spatial resolution for high‐quality electrophysiology monitoring devices.