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The ac field patterns about living cells.

H Rivera, J K Pollock, H A Pohl

    Cell Biophysics
    |March 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Living cells generate subtle electric fields, visualized through dielectrophoresis on small particles. These fields create observable attraction and repulsion patterns, revealing cell electrical properties.

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    Area of Science:

    • Biophysics
    • Cellular Electrophysiology

    Background:

    • Living cells produce small alternating current (ac) electric fields.
    • These fields are typically difficult to detect and visualize.

    Purpose of the Study:

    • To demonstrate the presence and visualize the patterns of electric fields generated by living cells.
    • To utilize dielectrophoresis for observing cellular electrical characteristics.

    Main Methods:

    • Employing dielectrophoretic force on tiny dielectric particles to detect cellular electric fields.
    • Observing field patterns as cells and particles settle in a hanging drop formation.

    Main Results:

    • The dielectrophoretic force on particles visually confirms the existence of cell-generated ac electric fields.

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  • Observable patterns include attraction, repulsion, and dipolar/quadripolar field characteristics.
  • The settling process in a hanging drop allows for clear visualization of these field patterns.

    • Conclusions:

    • Dielectrophoresis provides an effective method for visualizing the subtle electric fields of living cells.
    • The observed patterns offer insights into the electrical nature and properties of cells.