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Related Experiment Videos

An improved simple tungsten microelectrode.

T R Vidyasagar, G W Perry

    Brain Research Bulletin
    |March 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    A new gel solution improves tungsten-in-glass microelectrodes, reducing microphonic effects and enhancing stability. This simple modification makes electrode fabrication easier and more reliable for long recording sessions.

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    Area of Science:

    • Neuroscience
    • Biomedical Engineering
    • Materials Science

    Background:

    • Tungsten-in-glass microelectrodes are crucial tools in neuroscience research.
    • Microphonic effects and fabrication challenges can limit electrode performance and reliability.

    Purpose of the Study:

    • To develop an improved tungsten-in-glass microelectrode with enhanced stability and reduced microphonic interference.
    • To simplify the fabrication process for these microelectrodes.

    Main Methods:

    • Introduction of a gel solution into the glass micropipette surrounding the tungsten wire.
    • Evaluation of microphonic effects and electrode stability during recording sessions.

    Main Results:

    • Significant damping of microphonic effects was achieved.

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  • A precise fit between tungsten and glass near the tip became less critical for successful fabrication.
  • The modified electrodes demonstrated high stability over extended recording periods.

    • Conclusions:

    • The gel-enhanced tungsten-in-glass microelectrode offers a robust and user-friendly alternative.
    • This improvement facilitates more reliable and accessible neural recording.