Neural recording and stimulation using wireless networks of microimplants

Neural recording and stimulation using wireless networks of microimplants


Publication Title
Nature Electronics
Publication/Creation Date
August 12 2021
Creators/Contributors
Arto Nurmikko (creator)
Jihun Lee (creator)
Vincent Leung (creator)
Ah-Hyoung Lee (creator)
Jiannan Huang (creator)
Peter Asbeck (creator)
Patrick P. Mercier (creator)
Stephen Shellhammer (creator)
Lawrence Larson (creator)
Farah Laiwalla (creator)
Brown University (contributor)
Baylor University (contributor)
University Of California At San Diego (contributor)
Qualcomm Technologies Inc. (contributor)
Media Type
Journal Article
Persuasive Intent
Academic
Discursive Type
Inventions
Description
Abstract:

Multichannel electrophysiological sensors and stimulators—particularly those used to study the nervous system—are usually based on monolithic microelectrode arrays. However, the architecture of such arrays limits flexibility in electrode placement and scaling to a large number of nodes, especially across non-contiguous locations. Here we report wirelessly networked and powered electronic microchips that can autonomously perform neural sensing and electrical microstimulation. The microchips, which we term neurograins, have an ~1 GHz electromagnetic transcutaneous link to an external telecom hub, providing bidirectional communication and control at the individual device level. To illustrate the potential of the approach, we show that 48 neurograins can be individually addressed on a rat cortical surface and used for the acute recording of neural activity. Theoretical calculations and experimental measurements show that the link configuration could potentially be scaled to 770 neurograins using a customized time-division multiple access protocol.
HCI Platform
Implantables
Relation to Body
In
Related Body Part
Brain
Augments
Thinking
Marketing Keywords
Source
https://doi.org/10.1038/s41928-021-00631-8

Date archived
September 20 2021
Last edited
October 7 2021
How to cite this entry
Arto Nurmikko, Jihun Lee, Vincent Leung, Ah-Hyoung Lee, Jiannan Huang, Peter Asbeck, Patrick P. Mercier, Stephen Shellhammer, Lawrence Larson, Farah Laiwalla. (August 12 2021). "Neural recording and stimulation using wireless networks of microimplants". Nature Electronics. Springer Nature Publishing. Fabric of Digital Life. https://fabricofdigitallife.com/Detail/objects/5438