Cited by 150Electromagnetic Fields and Biological EffectsElectrical and Electromagnetic ResearchMicrobial Inactivation Methods

Second-order model of membrane electric field induced by alternating external electric fields

Kotnik, T., Miklavcic, D.·2000·IEEE Transactions on Biomedical Engineering

Abstract

With biological cells exposed to ac electric fields below 100 kHz, external field is amplified in the cell membrane by a factor of several thousands (low-frequency plateau), while above 100 kHz, this amplification gradually decreases with frequency. Below 10 MHz, this situation is well described by the established first-order theory which treats the cytoplasm and the external medium as pure conductors. At higher frequencies, capacitive properties of the cytoplasm and the external medium become increasingly important and thus must be accounted for. This leads to a broader, second-order model, which is treated in detail in this paper. Unlike the first-order model, this model shows that above 10 MHz, the membrane field amplification stops decreasing and levels off again in the range of tens (high-frequency plateau). Existence of the high-frequency plateau could have an important impact on present theories of high-frequency electric fields effects on cells and their membranes.

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Crossref · 10.1109/10.855935

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35 of 35 references verified0 citation errors · 0 not checkable

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  • As the frequency of the field increases, the high membrane field gain diminishes, allowing for higher field intensities to penetrate into the cell.

    “as the frequency of the field increases, the high membrane field gain diminishes, allowing for higher field intensities to penetrate into the cell.”
  • Observed wave patterns in electrically-stimulated AFs were very similar to the solitary waveforms recorded for electrically-stimulated non-linear transmission lines.

    “The observed wave patterns in electrically-stimulated AFs [30] were very similar to the solitary waveforms recorded for electrically-stimulated non-linear transmission lines [110].”

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Authors
Kotnik, T., & Miklavcic, D.
Affiliations
Centre National de la Recherche Scientifique (FR)
Venue
IEEE Transactions on Biomedical Engineering
Published
2000
Volume
47
Issue
8
Pages
1074-1081
ISSN
0018-9294 (ISSN-L)
OpenAlex
W2138651796
Cited by
150
References
36
Citations by year
2026: 2 · 2025: 2 · 2024: 8 · 2023: 4 · 2022: 5 · 2021: 4 · 2020: 5 · 2019: 6 · 2018: 14 · 2017: 13 · 2016: 9 · 2015: 8 · 2014: 6 · 2013: 4 · 2012: 7
FWCI
1.80
Type
journal article
Language
en
Open access
closed
Locations
  • IEEE Transactions on Biomedical Engineering (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Electromagnetic Fields and Biological Effects
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Electrical and Electromagnetic Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Microbial Inactivation Methods
Keywords
membrane electric field, AC electric field, second-order model, field enhancement, plasma membrane, electroporation, cell membrane permeability
MeSH terms
Biomedical Engineering, Cell Membrane, Electric Stimulation, Electromagnetic Fields, Membrane Potentials, Models, Biological

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