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Nonlinear wave mechanisms in interactions between excitable tissue and electromagnetic fields.

A F Lawrence, W R Adey

    Neurological Research
    |January 1, 1982
    PubMed
    Summary

    External electromagnetic fields influence tissue functions through nonlinear mechanisms. These effects involve soliton waves, which are long-lived energy carriers in biological molecules, impacting cellular processes.

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    Area of Science:

    • Biophysics
    • Cellular Biology
    • Electromagnetism

    Background:

    • Intrinsic electromagnetic fields are crucial for tissue functions like morphogenesis and neural signaling.
    • External electromagnetic fields can significantly influence these biological processes.
    • Observed effects suggest nonlinear mechanisms at low-level field exposures.

    Purpose of the Study:

    • To explore the role of nonlinear mechanisms in tissue response to external electromagnetic fields.
    • To model the interaction between excitable tissues and electromagnetic fields.
    • To investigate the potential involvement of soliton waves in biological processes.

    Main Methods:

    • Analyzing tissue exposure to extremely low frequency (ELF) and ELF-modulated microwave fields.

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  • Modeling nonlinear molecular vibrations (solitons) in long-chain molecules.
  • Developing a model for electromagnetic field-tissue interaction based on nonlinear membrane waves.
  • Simulating calcium fluxes using a nonlinear reaction-diffusion system.

    • Main Results:

    • Extremely low frequency (ELF) and microwave fields induce nonlinear effects in tissues.
    • Soliton waves, arising from phonon-exciton interactions, are proposed as energy carriers.
    • These nonlinear waves can couple intracellular and extracellular reaction-diffusion processes.
    • Calcium fluxes in the central nervous system can be modeled by nonlinear reaction-diffusion systems.

    Conclusions:

    • Nonlinear mechanisms, particularly soliton waves, are fundamental to understanding tissue interactions with electromagnetic fields.
    • Solitons in cell membranes may facilitate charge transfer and energy transport.
    • These findings offer a new perspective on bioelectromagnetic interactions and cellular signaling.