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A Study of the Effect of Terahertz Electromagnetic Radiation on Microbial Cell Viability

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Abstract—The effect of pulsed terahertz radiation at a wavelength of 66 μm, a pulse duration of 100 ns, and a pulse energy of 200 mJ on a suspension of microbial cells was studied. The effect of terahertz radiation was shown to cause cell death at a value of total energy of ~6 J. Since the temperature of the cell suspension after radiation remained almost unchanged, it implies that pulsed terahertz radiation exhibited a non-thermal effect. Methods of standard microbial plating, electron microscopy, electroacoustic analysis, and spectral analysis were used in order to verify the results. These experiments make it possible to control the viability of bacterial cells using terahertz radiation with certain parameters.

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Funding

This study was partially supported by the Russian Foundation for Basic Research (project nos. 19-07-00300 and 19-07-00304).

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Authors and Affiliations

  1. Scientific and Research Institute for Long-Distance Radio Communications, 127083, Moscow, Russia

    S. F. Boev, A. I. Vagin, S. Yu. Solomatin, D. V. Savostyanov, V. V. Siluyanov & A. S. Shmakov

  2. Saratov Branch of Kotel’nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, 410019, Saratov, Russia

    B. D. Zaitsev, A. A. Teplykh & I. A. Borodina

  3. Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 410049, Saratov, Russia

    O. A. Karavaeva & O. I. Guliy

  4. Saratov State Vavilov Agrarian University, 410012, Saratov, Russia

    O. I. Guliy

Authors
  1. S. F. Boev
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  2. A. I. Vagin
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  3. S. Yu. Solomatin
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  4. D. V. Savostyanov
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  5. V. V. Siluyanov
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  6. A. S. Shmakov
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  7. B. D. Zaitsev
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  8. A. A. Teplykh
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  9. I. A. Borodina
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  10. O. A. Karavaeva
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  11. O. I. Guliy
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Corresponding author

Correspondence to O. I. Guliy.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

Additional information

Translated by A. Panyushkina

Abbreviation: THz, terahertz.

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Boev, S.F., Vagin, A.I., Solomatin, S.Y. et al. A Study of the Effect of Terahertz Electromagnetic Radiation on Microbial Cell Viability. BIOPHYSICS 64, 416–423 (2019). https://doi.org/10.1134/S0006350919030059

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  • DOI: https://doi.org/10.1134/S0006350919030059

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