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Updated: Feb 11, 2026
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Electric and Magnetic Field Devices for Stimulation of Biological Tissues
Published on: May 15, 2021
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Dosimetry of extremely-low-frequency magnetic fields.
1Department of Electrical Engineering, University of Rhode Island, Kingston 02881.
Bioelectromagnetics
|January 1, 1992
Summary
Understanding how organisms respond to extremely low frequency magnetic fields requires detailed knowledge of field-organism interactions. Induced electric fields and static magnetic field presence are crucial for predicting biological effects.
Area of Science:
- Biophysics
- Electromagnetism
- Cell Biology
Background:
- Accurate extrapolation of quantitative biological measurements necessitates understanding field-organism interactions.
- Current knowledge gaps hinder precise prediction of biological effects from electromagnetic fields.
Purpose of the Study:
- To elucidate mechanisms of biological effects from low-intensity, extremely low frequency magnetic fields.
- To investigate the role of induced electric fields and static magnetic fields in cellular responses.
Main Methods:
- Theoretical analysis of induced electric fields and their impact on cellular electrical properties.
- Review of proposed mechanisms for direct interaction between alternating magnetic fields and biological systems, including static field effects.
Main Results:
- Biological effects of low-intensity, extremely low frequency magnetic fields may stem from induced electric fields.
- Microscale electrical properties are vital for predicting effects related to current density, electric field strength, and mechanical forces.
- Direct interaction mechanisms involving alternating magnetic fields also depend on the presence and orientation of static magnetic fields.
Conclusions:
- Detailed knowledge of microscale electrical properties is essential for predicting biological responses to induced electric fields.
- Static magnetic fields play a significant role in various proposed mechanisms of alternating magnetic field interactions with cells.
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