Bunkin Nikolai F, Novakovskaya Yulia V, Gerasimov Rostislav Y, Ninham Barry W, Tarasov Sergey A, Rodionova Natalia N, Stepanov German O
Department of Fundamental Sciences, Bauman Moscow State Technical University, 105005 Moscow, Russia.
Chemistry Department, Lomonosov Moscow State University, 119991 Moscow, Russia.
Int J Mol Sci. 2025 Jul 16;26(14):6811. doi: 10.3390/ijms26146811.
It is well known that aqueous solutions can emit electromagnetic waves in the radio frequency range. However, the physical nature of this process is not yet fully understood. In this work, the possible role of gas nanobubbles formed in the bulk liquid is considered. We develop a theoretical model based on the concept of gas bubbles stabilized by ions, or "bubstons". The role of bicarbonate and hydronium ions in the formation and stabilization of bubstons is explained through the use of quantum chemical simulations. A new model of oscillating bubstons, which takes into account the double electric layer formed around their gas core, is proposed. Theoretical estimates of the frequencies and intensities of oscillations of such compound species are obtained. It was determined that oscillations of negatively charged bubstons can occur in the GHz frequency range, and should be accompanied by the emission of electromagnetic waves. To validate the theoretical assumptions, we used dynamic light scattering (DLS) and showed that, after subjecting aqueous solutions to vigorous shaking with a force of 4 or 8 N (kg·m/s) and a frequency of 4-5 Hz, the volume number density of bubstons increased by about two orders of magnitude. Radiometric measurements in the frequency range of 50 MHz to 3.5 GHz revealed an increase in the intensity of radiation emitted by water samples upon the vibrational treatment. It is argued that, according to our new theoretical model, this radiation can be caused by oscillating bubstons.
众所周知，水溶液能够在射频范围内发射电磁波。然而，这一过程的物理本质尚未得到充分理解。在这项工作中，我们考虑了在本体液体中形成的气体纳米气泡可能发挥的作用。我们基于由离子稳定的气泡（即“泡斯顿”）的概念开发了一个理论模型。通过量子化学模拟解释了碳酸氢根离子和水合氢离子在泡斯顿形成和稳定过程中的作用。提出了一种新的振荡泡斯顿模型，该模型考虑了围绕其气体核心形成的双电层。得到了此类复合物种振荡频率和强度的理论估计值。结果表明，带负电的泡斯顿的振荡可以在吉赫兹频率范围内发生，并且应该伴随着电磁波的发射。为了验证理论假设，我们使用了动态光散射（DLS），结果表明，在以4或8 N（kg·m/s）的力和4 - 5 Hz的频率对水溶液进行剧烈振荡后，泡斯顿的体积数密度增加了约两个数量级。在50 MHz至3.5 GHz频率范围内的辐射测量表明，经过振动处理后，水样发射的辐射强度有所增加。有人认为，根据我们的新理论模型，这种辐射可能是由振荡的泡斯顿引起的。
