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A polisher for patch pipets.

M D Leibowitz1, V E Dionne

  • 1Department of Physiology and Biophysics, University of Washington, Seattle 98195.

Pflugers Archiv : European Journal of Physiology
|October 1, 1987
PubMed
Summary
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A new apparatus fire polishes patch-clamp recording pipets. This device integrates the polishing filament and electrode holder with the microscope stage, simplifying the setup.

Area of Science:

  • Biophysics
  • Neuroscience
  • Materials Science

Background:

  • Patch-clamp electrophysiology is a critical technique for studying ion channels.
  • Patch-clamp pipet quality, specifically the tip opening, significantly impacts recording stability and signal fidelity.
  • Current methods for polishing patch-clamp pipets can be cumbersome and require specialized manipulators.

Purpose of the Study:

  • To describe the design and construction of a novel apparatus for fire polishing patch-clamp recording pipets.
  • To present a simplified and integrated system for enhancing pipet tip geometry.
  • To improve the efficiency and accessibility of patch-clamp pipet preparation.

Main Methods:

  • A novel apparatus was designed and constructed for fire polishing.

Related Experiment Videos

  • The apparatus integrates the polishing filament within the microscope's field of view.
  • A microscope's mechanical stage is utilized to hold the patch-clamp electrode, eliminating the need for separate manipulators.

    • Main Results:

    • The apparatus successfully fire polishes patch-clamp recording pipets.
    • The integrated design simplifies the alignment and positioning of the filament and electrode.
    • Elimination of micromanipulators streamlines the pipetting polishing process.

    Conclusions:

    • The novel apparatus provides an effective and user-friendly method for fire polishing patch-clamp pipets.
    • This design enhances the preparation of high-quality electrodes for electrophysiological recordings.
    • The simplified setup has the potential to improve the reproducibility and throughput of patch-clamp experiments.