Dynamics of Conformational States of NADH Molecules in the Inner Surface Layers of Distilled Water and the Action of Gigahertz Electromagnetic Waves

Spectra of capillary waves of distilled water and NADH solution in distilled water and their dynamics under the influence of electromagnetic radiation in the gigahertz range were studied. An analysis of the relationship between the temporal and spatial frequency of capillary waves on the surface of a low-viscosity liquid was carried out, which made it possible to use the non-destructive method of optical heterodyning to determine the rheological characteristics of the near-surface layers of the samples. Irradiation of distilled water with electromagnetic radiation (specific power 10−4 W/cm2, frequency 60 GHz, exposure time 1 - 20 min.) leads to an increase in the viscosity and surface tension of the NADH solution in the distillate leads to a decrease in its viscosity and surface tension, which indicates changes in conformations of NADH molecules.