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Updated: May 12, 2026

Optrode Array for Simultaneous Optogenetic Modulation and Electrical Neural Recording
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Injectable, cellular-scale optoelectronics with applications for wireless optogenetics.

Tae-il Kim1, Jordan G McCall, Yei Hwan Jung

  • 1Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

Science (New York, N.Y.)
|April 13, 2013
PubMed
Summary

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This summary is machine-generated.

Researchers developed injectable, cellular-scale optoelectronic devices for minimally invasive neuroscience applications. These biocompatible devices enable wireless, programmed control of animal behavior, advancing optogenetics and potential biomedical applications.

Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Materials Science

Background:

  • Integration of semiconductor devices with biological systems is crucial for scientific discovery and clinical translation.
  • Optogenetics in neuroscience requires precise insertion of light sources, detectors, and sensors into the deep brain.
  • Current methods face limitations in minimally invasive capabilities and advanced functionalities.

Purpose of the Study:

  • To introduce a novel class of injectable, cellular-scale optoelectronic devices.
  • To demonstrate their utility in optogenetics and neuroscience research.
  • To explore their potential for broader biomedical applications.

Main Methods:

  • Development of ultrathin, mechanically compliant, and biocompatible optoelectronic devices.

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Last Updated: May 12, 2026

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  • Demonstration of injectable delivery into soft tissues, specifically the mammalian brain.
  • Implementation in optogenetic experiments for wireless and programmed control of freely moving animals.

    • Main Results:

    • Achieved unprecedented operational modes in optogenetics.
    • Enabled completely wireless and programmed complex behavioral control in freely moving animals.
    • Showcased minimally invasive operation within the mammalian brain.

    Conclusions:

    • The developed injectable optoelectronics offer versatile and important capabilities for neuroscience.
    • These devices facilitate basic scientific discoveries and translation into clinical technologies.
    • Their biocompatibility and minimally invasive nature suggest broad utility in various organ systems and biomedical science.