title: Magnetic field influence on electrical properties of human blood measured by impedance spectroscopy.
abstract: 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.
authors.affiliation: Instituto de Física, Universidad de Guanajuato, León, Gto., México. modesto@fisica.ugto.mx
authors.forename: M
authors.initials: M
authors.lastname: Sosa
authors.forename: J
authors.initials: J
authors.lastname: Bernal-Alvarado
authors.forename: M
authors.initials: M
authors.lastname: Jiménez-Moreno
authors.forename: J C
authors.initials: JC
authors.lastname: Hernández
authors.forename: G
authors.initials: G
authors.lastname: Gutiérrez-Juárez
authors.forename: M
authors.initials: M
authors.lastname: Vargas-Luna
authors.forename: R
authors.initials: R
authors.lastname: Huerta
authors.forename: J C
authors.initials: JC
authors.lastname: Villagómez-Castro
authors.forename: P
authors.initials: P
authors.lastname: Palomares
mesh_terms: 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*