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Updated: May 26, 2026

Double-barreled and Concentric Microelectrodes for Measurement of Extracellular Ion Signals in Brain Tissue
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Double-barreled and Concentric Microelectrodes for Measurement of Extracellular Ion Signals in Brain Tissue

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Magnetically gated microelectrodes.

Joseph R Basore1, Nickolay V Lavrik, Lane A Baker

  • 1Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.

Chemical Communications (Cambridge, England)
|December 7, 2011
PubMed
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Researchers developed novel microelectrodes within microelectromagnetic traps. These electrodes use magnetic particles to control electroactive species transport, enabling a novel ON/OFF bioelectrocatalytic glucose sensor.

Area of Science:

  • Electrochemistry
  • Nanotechnology
  • Biosensors

Background:

  • Microelectromagnetic traps offer precise control over microscale environments.
  • Developing efficient and reversible methods for controlling analyte transport to electrode surfaces is crucial for advanced sensor design.

Purpose of the Study:

  • To describe the fabrication of microelectrodes integrated into single-coil microelectromagnetic traps.
  • To demonstrate the use of magnetic particles for reversible gating of electroactive species transport.
  • To develop an ON/OFF bioelectrocatalytic glucose sensor.

Main Methods:

  • Fabrication of microelectrodes at the center of single-coil microelectromagnetic traps.
  • Utilizing magnetic particles to modulate the proximity of an electroactive species to the electrode surface.

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Last Updated: May 26, 2026

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Published on: September 5, 2015

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  • Integration into a bioelectrocatalytic glucose sensing system.

    • Main Results:

    • Successful fabrication of microelectrodes within microelectromagnetic traps.
    • Demonstrated reversible gating of electroactive species transport using magnetic particles.
    • Achieved an ON/OFF switching capability for bioelectrocatalytic glucose detection.

    Conclusions:

    • Microelectrodes in microelectromagnetic traps provide a versatile platform for controlling microscale transport.
    • Magnetic particle gating offers a novel and effective method for regulating analyte delivery in electrochemical sensors.
    • The developed system presents a promising approach for creating responsive and tunable bioelectrocatalytic glucose sensors.