Studies on the Effect of Radio-Frequency Waves on Biological Macromolecules

The effect of radio-frequency electric fields on various biologic materials was examined. Particularly, the effects on alcohol dehydrogenase and DNA were carefully investigated. To avoid the effects of heating, a pulsed electric field was used, and samples were also rigorously cooled. The activity of alcohol dehydrogenase and the structure of DNA were not altered, however, even by the prolonged irradiation at high-field intensity between 1 and about 60 Mc/s.