Code Multiplexed Nanocapacitor Arrays for Scalable Neural Recordings

Weaver, S.; Chen, Y.; Renz, A. F.; Choi, W.; Vyza, Y.; Schlotter, T.; Vulic, K.; Kim, D.; Atzeni, G.; Momotenko, D.; Nakatsuka, N.; Jang, T.; Vörös, J.

doi:10.1101/2024.02.22.581578

bioRxiv · 10.1101/2024.02.22.581578

Code Multiplexed Nanocapacitor Arrays for Scalable Neural Recordings

Weaver, S.·Chen, Y.·Renz, A. F.·Choi, W.·Vyza, Y.·Schlotter, T.·Vulic, K.·Kim, D.·Atzeni, G.·Momotenko, D.·Nakatsuka, N.·Jang, T.·Vörös, J.

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Abstract

Large scale neural recordings are redefining our understanding of the brain. However, simultaneously recording potentials from thousands of microelectrodes remains challenging. We overcome this limitation by measuring activity-induced changes in mutual capacitance. Code division multiplexing enabled simultaneous recordings of neural activity from 1,024 nanocapacitor electrodes at a density of 10k electrodes/mm.2 Features of neural activity i.e., action potentials, bursts, and local field potentials were measured in recordings, benchmarking our device against the state-of-the-art. SummaryCapacitive sensing of neural activity improves the scalability, fabrication, and miniaturization of microelectrode arrays.

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Weaver, S., Chen, Y., Renz, A. F., Choi, W., Vyza, Y., Schlotter, T., Vulic, K., Kim, D., Atzeni, G., Momotenko, D., Nakatsuka, N., Jang, T., Vörös, J.. 2024-02-24. Code Multiplexed Nanocapacitor Arrays for Scalable Neural Recordings. https://doi.org/10.1101/2024.02.22.581578

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