Development of a neural interface for high-definition, long-term recording in rodents and nonhuman primates

Chia Han Chiang, Sang Min Won, Amy L. Orsborn, Ki Jun Yu, Michael Trumpis, Brinnae Bent, Charles Wang, Yeguang Xue, Seunghwan Min, Virginia Woods, Chunxiu Yu, Bong Hoon Kim, Sung Bong Kim, Rizwan Huq, Jinghua Li, Kyung Jin Seo, Flavia Vitale, Andrew Richardson, Hui Fang, Yonggang HuangKenneth Shepard, Bijan Pesaran, John A. Rogers, Jonathan Viventi

Research output: Contribution to journalArticle

Abstract

Long-lasting, high-resolution neural interfaces that are ultrathin and flexible are essential for precise brain mapping and high-performance neuroprosthetic systems. Scaling to sample thousands of sites across large brain regions requires integrating powered electronics to multiplex many electrodes to a few external wires. However, existing multiplexed electrode arrays rely on encapsulation strategies that have limited implant lifetimes. Here, we developed a flexible, multiplexed electrode array, called “Neural Matrix,” that provides stable in vivo neural recordings in rodents and nonhuman primates. Neural Matrix lasts over a year and samples a centimeter-scale brain region using over a thousand channels. The long-lasting encapsulation (projected to last at least 6 years), scalable device design, and iterative in vivo optimization described here are essential components to overcoming current hurdles facing next-generation neural technologies.

Original languageEnglish (US)
Article numbereaay4682
JournalScience Translational Medicine
Volume12
Issue number538
DOIs
StatePublished - Apr 8 2020

ASJC Scopus subject areas

  • Medicine(all)

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    Chiang, C. H., Won, S. M., Orsborn, A. L., Yu, K. J., Trumpis, M., Bent, B., Wang, C., Xue, Y., Min, S., Woods, V., Yu, C., Kim, B. H., Kim, S. B., Huq, R., Li, J., Seo, K. J., Vitale, F., Richardson, A., Fang, H., ... Viventi, J. (2020). Development of a neural interface for high-definition, long-term recording in rodents and nonhuman primates. Science Translational Medicine, 12(538), [eaay4682]. https://doi.org/10.1126/scitranslmed.aay4682