PEDOT coated microelectrode arrays for chronic neural recording and stimulation

The efficacy of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) coatings was tested on microelectrodes for neural recording and stimulation. In vitro tests revealed that PEDOT coated electrodes were capable of injecting 15 times the charge of Platinum Iridium (PtIr) electrodes and Iridiu...

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Bibliographic Details
Published in2009 4th International IEEE/EMBS Conference on Neural Engineering pp. 383 - 386
Main Authors Venkatraman, S., Hendricks, J., Richardson-Burns, S., Jan, E., Martin, D., Carmena, J.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2009
Subjects
chronic performance
Electroencephalography
Frequency
Liquid crystal displays
Microelectrodes
microstimulation
Monitoring
Neural engineering
Noise cancellation
PEDOT
Phase measurement
recording
Spectral analysis
Steady-state
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ISBN1424420725
9781424420728
ISSN1948-3546
DOI10.1109/NER.2009.5109313

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Summary:The efficacy of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) coatings was tested on microelectrodes for neural recording and stimulation. In vitro tests revealed that PEDOT coated electrodes were capable of injecting 15 times the charge of Platinum Iridium (PtIr) electrodes and Iridium Oxide (IrOx) coated electrodes when using constant current stimulation at zero voltage bias. Furthermore, in vivo chronic testing in rats revealed that PEDOT coated electrodes showed higher signal to noise recordings and superior charge capacity compared to PtIr electrodes.
ISBN:1424420725
9781424420728
ISSN:1948-3546
DOI:10.1109/NER.2009.5109313