Magnetic field influence on electrical properties of human blood measured by impedance spectroscopy.
The impedance spectroscopy technique (IST) was used for studying the effect of a 0.5 T magnetic field on the electrical properties of whole human blood. A Solartron SI 1260 spectrometer was used to measure the impedance spectra of magnetic field exposed blood samples compared to non-exposed samples. An equivalent electrical circuit model, consisting in a resistance Rs in series with a parallel circuit formed by a constant phase element (CPE) and another resistance Rp, is proposed to fit the data in both cases. The experiment used 3 ml human blood samples from 160 healthy donors. A Wilcoxon matched pairs statistical test was applied to the data. The data analysis seems to show a statistically significant increase of the values of resistance Rp (Z = 5.06, P < 0.001) and capacitance CT (Z = 3.32, P < 0.001) of the blood exposed to magnetic field, by approximately 10.4% and 1.9%, respectively.
Sosa
M
M
Instituto de Física, Universidad de Guanajuato, León, Gto., México. modesto@fisica.ugto.mx
Bernal-Alvarado
J
J
Jiménez-Moreno
M
M
Hernández
J C
JC
Gutiérrez-Juárez
G
G
Vargas-Luna
M
M
Huerta
R
R
Villagómez-Castro
J C
JC
Palomares
P
P
D000293:Adolescent; D000328:Adult; D001790:Blood Physiological Phenomena / Q000528:radiation effects*; D025802:Electric Capacitance; D017097:Electric Impedance; D004574:Electromagnetic Fields; D005260:Female; D006801:Humans; D008280:Magnetics; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D013057:Spectrum Analysis / Q000379:methods*