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(Database last updated on Jun 13, 2019)

ID Number 1458
Study Type Engineering & Physics
Model RF exposure and measurement of dielectric properties in DNA and protein molecules

Dielectric measurements of ice and frozen DNA solutions exposed to100 Hz-10 MHz RF are reported. Pure ice exhibits single relaxation behavior while frozen DNA displays double-dispersion behavior. The first dispersion is centered at 3 kHz due to a defect mechanism. The second is centered at 2 MHz due to counter ion flow through water immediately adjacent to the DNA molecule. In additional studies, the authors reported a 5 fold fold increase of the dielectric increment of bovine serum albumin at 20 degrees C when urea was added at 5 mol/L. This effect was reversed with betaine (about 2.5 mol/L)

Findings Not Applicable to Bioeffects
Status Completed With Publication
Principal Investigator Microwave Consultants Ltd, UK -
Funding Agency DOH, UK, MMF, MTHR (NRPB), UK
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  • Takashima, S et al. Biophys J, (1984) 46:29-34
  • Comments