Gaussian distribution of relaxation through human blood

The complicated structure of human blood has been characterized based on relaxation time, τ, and the Cole–Cole parameter, α, obtained from dielectric measurements. As previously reported by different authors, the experimental data show net deviation from the classical Debye model with certain distribution of relaxation times (Dτ). Plots of α versus width of the relaxation rate distribution of micro-particles inside the blood show that Dτ drastically affects the dielectric properties of the fluid. The mathematical function of Dτ is found to be Gaussian and we find that the α values of normal blood have net lower magnitude than that of diabetic blood. These results suggest that glucose in blood increases the broadness of the parameter α, which have significant importance in diabetic-biosensor manufacture.

Research Highlights►More than a century, the electrical properties of human blood have been of interest in wide spectra of medical applications. ►In a recent article published in Physics B, scientists at King Abdulaziz University in Saudi Arabia have published a study of the electrical properties of human blood (normal and diabetic). ►The author uses some parameters including Gaussian distribution of relaxation rates, Glucose in blood increases the broadness of the "Cole-parameter", and dielectric measurements.