Interaction of EHF radiation with biomolecular systems

Subterahertz characterization of ethanol hydration layers by microfluidic system

“…2 as a function of water concentration. These measurements are found in agreement with the ones obtained by Khurgin et al 13 and validate our device's ability to probe liquids sub-THz-dynamics. Figure 2 clearly shows that absorption decreases when ethanol concentration increases.…”

“…The hydration number N h is the number of water molecules in the ethanol hydration shell. It was determined from MD simulations by integrating g͑r͒ between 0 and 3.3 Å ͑first hydration layer͒ and 0 and 5.5 Å ͑whole hydration shell͒, respectively, corresponding to the first and second 13 was N h = 4, assuming that hydration shell absorption coefficient was equal to zero. This latter hydration number is closer to the value obtained from MD simulations by integrating the first peak of g͑r͒.…”