A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation

Ah Hyoung Lee; Jihun Lee; Kent D. Choquette; Yoon Kyu Song; Arto Nurmikko

doi:10.1109/NER49283.2021.9441202

A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation

Ah Hyoung Lee, Jihun Lee, Kent D. Choquette, Yoon Kyu Song, Arto Nurmikko

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

An alternative to monolithic microelectrode array driven cortical stimulators are ensembles of autonomous, spatially distributed wireless microdevices. We describe first steps in the path towards highly miniaturized, multi-nodal, untethered photovoltaic stimulators, here in the context of a future intracortical or retinal implant. Individual sub-mm stimulator elements harvest infrared light at 850 nm wavelength from a vertical-cavity surface-emitting laser array which drives and coordinates the predetermined spatio-temporal excitation patterns. Each microscale photovoltaic device generates charge-balanced biphasic stimulation pulses, compatible in principle with long-term electrode stability.

Original language	English (US)
Title of host publication	2021 10th International IEEE/EMBS Conference on Neural Engineering, NER 2021
Publisher	IEEE Computer Society
Pages	613-616
Number of pages	4
ISBN (Electronic)	9781728143378
DOIs	https://doi.org/10.1109/NER49283.2021.9441202
State	Published - May 4 2021
Event	10th International IEEE/EMBS Conference on Neural Engineering, NER 2021 - Virtual, Online, Italy Duration: May 4 2021 → May 6 2021

Publication series

Name	International IEEE/EMBS Conference on Neural Engineering, NER
Volume	2021-May
ISSN (Print)	1948-3546
ISSN (Electronic)	1948-3554

Conference

Conference	10th International IEEE/EMBS Conference on Neural Engineering, NER 2021
Country/Territory	Italy
City	Virtual, Online
Period	5/4/21 → 5/6/21

ASJC Scopus subject areas

Artificial Intelligence
Mechanical Engineering

Online availability

10.1109/NER49283.2021.9441202

Library availability

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Cite this

Lee, A. H., Lee, J., Choquette, K. D., Song, Y. K., & Nurmikko, A. (2021). A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation. In 2021 10th International IEEE/EMBS Conference on Neural Engineering, NER 2021 (pp. 613-616). Article 9441202 (International IEEE/EMBS Conference on Neural Engineering, NER; Vol. 2021-May). IEEE Computer Society. https://doi.org/10.1109/NER49283.2021.9441202

A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation. / Lee, Ah Hyoung; Lee, Jihun; Choquette, Kent D. et al.
2021 10th International IEEE/EMBS Conference on Neural Engineering, NER 2021. IEEE Computer Society, 2021. p. 613-616 9441202 (International IEEE/EMBS Conference on Neural Engineering, NER; Vol. 2021-May).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, AH, Lee, J, Choquette, KD, Song, YK & Nurmikko, A 2021, A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation. in 2021 10th International IEEE/EMBS Conference on Neural Engineering, NER 2021., 9441202, International IEEE/EMBS Conference on Neural Engineering, NER, vol. 2021-May, IEEE Computer Society, pp. 613-616, 10th International IEEE/EMBS Conference on Neural Engineering, NER 2021, Virtual, Online, Italy, 5/4/21. https://doi.org/10.1109/NER49283.2021.9441202

Lee AH, Lee J, Choquette KD, Song YK, Nurmikko A. A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation. In 2021 10th International IEEE/EMBS Conference on Neural Engineering, NER 2021. IEEE Computer Society. 2021. p. 613-616. 9441202. (International IEEE/EMBS Conference on Neural Engineering, NER). doi: 10.1109/NER49283.2021.9441202

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A distributed ensemble of wireless intracortical microdevices for charge-balanced photovoltaic current stimulation

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