Resonance effect of millimeter waves in the power range from 10(-19) to 3 x 10(-3) W/cm2 on Escherichia coli cells at different concentrations.
Belyaev IY, Shcheglov VS, Alipov YD, Polunin VA · 1996
View Original AbstractA resonance frequency of 51.755 GHz in E. coli cells remained constant across a very wide range of power densities, from 10-19 to 3 × 10-3 W/cm2.
Plain English Summary
Researchers studied how millimeter waves affected the genome conformational state of E. coli AB1157 cells across a frequency range of 51.64 to 51.85 GHz. The resonance frequency of 51.755 GHz did not shift with power density, though the magnitude of the effect differed significantly and depended on the power density of exposure. Sharp narrowing of the 51.755 GHz resonance at lower power densities was followed by an emergence of new resonance frequencies.
Why This Matters
The researchers used a method called anomalous viscosity time dependencies to measure changes in the genome conformational state of E. coli cells. The shape of the power-density dependence of the half-width was the same for different concentrations of exposed cells, at 4 × 107 and 4 × 108 cells/ml, but the magnitude of the resonance effect differed significantly between them. The half-width of the resonant response showed a sigmoid dependence on power density, ranging from 3 MHz to 100 MHz. The power-density dependence of the effect at the 51.674 GHz resonance differed markedly from the corresponding dependence at 51.755 GHz, with a power window in the range from 10-16 to 10-8 W/cm2. The authors explained their results using a model of electron-conformational interactions, which they reported was in good agreement with the experimental data.
Exposure Details
- Power Density
- 0.00000000000000009999999999999998558 - 3 mW/cm²
- Source/Device
- 51.64 - 51.85 GHz
Where This Falls on the Concern Scale
Study Details
The effect of millimeter waves (MMWs) on the genome conformational state (GCS) of E. coli AB1157 cells was studied by the method of anomalous viscosity time dependencies (AVTD) in the frequency range of 51.64-51.85 GHz.
The 51.755 GHz resonance frequency of the cell reaction to MMWs did not depend on power density (PD)...
The results obtained were explained in the framework of a model of electron-conformational interactions. The frequency-time parameters of this model appeared to be in good agreement with experimental data.
Show BibTeX
@article{iy_1996_resonance_effect_of_millimeter_853,
author = {Belyaev IY and Shcheglov VS and Alipov YD and Polunin VA},
title = {Resonance effect of millimeter waves in the power range from 10(-19) to 3 x 10(-3) W/cm2 on Escherichia coli cells at different concentrations.},
year = {1996},
doi = {10.1002/(SICI)1521-186X(1996)17:4%3C312::AID-BEM7%3E3.0.CO;2-6},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/(SICI)1521-186X(1996)17:4%3C312::AID-BEM7%3E3.0.CO;2-6},
}