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bioRxiv · 10.1101/385153

MEMS-Actuated Carbon Fiber Microelectrode for Neural Recording

Zoll, R. S.·Schindler, C. B.·Massey, T. L.·Drew, D. S.·Maharbiz, M. M.·Pister, K. S. J.
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Abstract

Microwire and microelectrode arrays used for cortical neural recording typically consist of tens to hundreds of recording sites, but often only a fraction of these sites are in close enough proximity to firing neurons to record single-unit activity. Recent work has demonstrated precise, depth-controllable mechanisms for the insertion of single neural recording electrodes, but these methods are mostly only capable of inserting electrodes which elicit adverse biological response. We present an electrostatic-based actuator capable of inserting individual carbon fiber microelectrodes which elicit minimal to no adverse biological response. The device is shown to insert a carbon fiber recording electrode into an agar brain phantom and can record an artificial neural signal in saline. This technique provides a platform generalizable to many microwire-style recording electrodes.

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Zoll, R. S., Schindler, C. B., Massey, T. L., Drew, D. S., Maharbiz, M. M., Pister, K. S. J.. 2018-08-05. MEMS-Actuated Carbon Fiber Microelectrode for Neural Recording. https://doi.org/10.1101/385153

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