Cited by 232Neuroscience and Neural EngineeringAnalog and Mixed-Signal Circuit DesignNeural dynamics and brain function

Multiplexed, High Density Electrophysiology with Nanofabricated Neural Probes

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Du, Jiangang, Blanche, Timothy J., Harrison, Reid R., Lester, Henry A., Masmanidis, Sotiris C.·2011·PLoS ONE

Abstract

Extracellular electrode arrays can reveal the neuronal network correlates of behavior with single-cell, single-spike, and sub-millisecond resolution. However, implantable electrodes are inherently invasive, and efforts to scale up the number and density of recording sites must compromise on device size in order to connect the electrodes. Here, we report on silicon-based neural probes employing nanofabricated, high-density electrical leads. Furthermore, we address the challenge of reading out multichannel data with an application-specific integrated circuit (ASIC) performing signal amplification, band-pass filtering, and multiplexing functions. We demonstrate high spatial resolution extracellular measurements with a fully integrated, low noise 64-channel system weighing just 330 mg. The on-chip multiplexers make possible recordings with substantially fewer external wires than the number of input channels. By combining nanofabricated probes with ASICs we have implemented a system for performing large-scale, high-density electrophysiology in small, freely behaving animals that is both minimally invasive and highly scalable.

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Authors
Du, J., Blanche, T. J., Harrison, R. R., Lester, H. A., & Masmanidis, S. C.
Affiliations
  • California Institute of Technology (US)
  • University of California, Berkeley (US)
  • Intan Technologies (United States) (US)
Corresponding author
Masmanidis, Sotiris C.
Venue
PLoS ONE
Published
2011-10-12
Volume
6
Issue
10
Pages
e26204
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2081826483
Cited by
231
References
51
Citations by year
2026: 6 · 2025: 15 · 2024: 6 · 2023: 14 · 2022: 10 · 2021: 21 · 2020: 19 · 2019: 14 · 2018: 19 · 2017: 19 · 2016: 28 · 2015: 19 · 2014: 16 · 2013: 20 · 2012: 5
FWCI
5.43
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • Figshare (submittedVersion, cc-by)
Funders
  • California Institute of Technology
  • National Institutes of Health (5r21ns066260-02, DA017279)
  • Kavli Nanoscience Institute, California Institute of Technology
  • National Institute on Drug Abuse (R01DA017279, DA017279)
  • National Institute of Neurological Disorders and Stroke (R21 NS066260, 5R21NS066260)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Physical Sciences › Engineering › Biomedical Engineering › Analog and Mixed-Signal Circuit Design
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
neural probes, extracellular recording, application-specific integrated circuits, silicon neural probe, implanted electrodes, freely moving animals
MeSH terms
Animals, Behavior, Animal, Electrodes, Male, Mice, Inbred C57BL, Neurons, Signal Processing, Computer-Assisted, Silicon, Temperature, Molecular Probes, Nanotechnology, Nanostructures, Mice, Electrophysiological Phenomena

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