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Journal Article

PEDOT:PSS microelectrode arrays for hippocampal cell culture electrophysiological recordings

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Koutsouras, D. A., Hama, A., Pas, J., Gkoupidenis, P., Hivert, B., Faivre-Sarrailh, C., et al. (2017). PEDOT:PSS microelectrode arrays for hippocampal cell culture electrophysiological recordings. MRS Communications, 7(2), 259-265. doi:10.1557/mrc.2017.34.

Cite as: https://hdl.handle.net/21.11116/0000-0005-43E7-B
In vitro electrophysiology using microelectrode arrays (MEAs) plays an important role in understanding fundamental biologic processes, screening potential drugs and assessing the toxicity of chemicals. Low electrode impedance and ability to sustain viable cultures are the key technology requirements. We show that MEAs consisting of poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS) and coated with poly-L-lysine satisfy these requirements. Hippocampal cell cultures, maintained for 3–6 weeks on these MEAs, give high quality recordings of neural activity. This enables the observation of drug-induced activity changes, which paves the way for using these devices in in vitro drug screening and toxicology applications.