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Nanomaterial-based microelectrode arrays for in vitro bidirectional brain-computer interfaces: a review.

Yaoyao Liu1,2, Shihong Xu1,2, Yan Yang1,2

  • 1State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China.

Microsystems & Nanoengineering
|February 2, 2023
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Summary

Nanomaterial-based microelectrode arrays (MEAs) enhance bidirectional in vitro brain-computer interfaces (BCIs) by improving signal detection and neural modulation for advanced brain function studies.

Keywords:
Biosensors

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Area of Science:

  • Neuroscience
  • Materials Science
  • Bioengineering

Background:

  • In vitro brain-computer interfaces (BCIs) offer a controlled environment for studying neural networks.
  • Current microelectrode arrays (MEAs) face limitations in signal detection, neural modulation precision, and biocompatibility.

Purpose of the Study:

  • To review the fabrication of nanomaterial-based MEAs for bidirectional in vitro BCIs.
  • To explore the potential of these advanced MEAs in neuroscience research and BCI development.

Main Methods:

  • Review of interdisciplinary research on nanomaterial fabrication for MEAs.
  • Analysis of nanomaterials' electrochemical properties for enhanced neural interfacing.
  • Discussion of neural signal decoding and modulation strategies.

Main Results:

  • Nanomaterial-based MEAs demonstrate improved signal detection and neural modulation.
  • These MEAs offer excellent spatiotemporal resolution and support long-term neuronal culture.
  • Enhanced electrochemical properties of nanomaterials are key to MEA performance improvements.

Conclusions:

  • Nanomaterial-based MEAs are crucial for advancing bidirectional in vitro BCIs.
  • These interfaces facilitate a deeper understanding of neural activity and brain function.
  • Future BCI development will benefit from MEAs integrated with dissociated neural cultures.