Equivalent Permittivity Based on Debye Model of Blood and Its SAR

Abstract

Dielectric parameters vary with frequencies are important properties of biological systems, which determine the absorption rates of electromagnetic radiation in human body. Two phase dielectric model is considered to investigate the dielectric properties of human blood in this paper. This paper systematically calculates the body's specific absorption rate of electromagnetic fields at low frequencies based on the dielectric properties obtained from the Debye model. This study could lay foundation not only for the theoretical basis for further study on electrical properties of biological tissue, but also for the exposure limits of health standard on electromagnetic radiation.

Combating Coronavirus Using Resonant Electromagnetic Irradiation

“…On the other hand, the dielectric properties of the RNA and the spikes are emulated using the dielectric properties of biological muscle material. The RNA and spikes are protein-consistent materials [22], [27]- [29], [44], which are thus like the muscle tissue, which is considered the main source of protein (i.e., it contains more than 80% protein) [45]. Therefore, to simulate the realistic dielectric properties of the virus, the relevant dielectric properties of biological materials available in [43] were used.…”

“…In the simulation, a superposition of the first and second-order Debye model is used to obtain the relaxation process of the biological materials expressed as [44]:…”

Electromagnetic Radiation Influences on Rheological Parameters of Rats’ Blood

“…In spite of the fact that the living organism has defensive systems against free radicals, these antioxidant defense systems can be deteriorated by the effect of magnetic field, which leads to an oxidative stress which gives rise to functional and morphological disturbances in red blood cells. [17] Blood, as a fundamental part of the immune system and one of the functional tissues, can deliver oxygen and nutrition to the vital parts in the body which was chosen to be investigated under exposure conditions [18]. The blood flow, which is considered as non-Newtonian fluids, through blood vessels is a very complicated phenomenon due to physical and physicochemical properties of the blood and the structure of the circulatory system.…”