The aim of the work was to evaluate the dielectric properties of human tissues in ex vivo conditions. The study was performed on 68 tissue samples, 20 of which were fragments of muscle tissue, 17 – fatty, 11 – fibrous and 20 – a full-layer skin flap. The analysis of the dielectric properties of tissue fragments was carried out by the method of near-field resonant microwave sounding using a special software and hardware complex. The study made it possible to verify the presence of pronounced differences in the dielectric properties of tissues depending on their histotype. It was revealed that adipose tissue has the highest level of dielectric permittivity, and fibrous tissue has the lowest one. Muscle tissue and a full-layered skin flap occupy an intermediate position between them. These data are fundamentally important for the creation of standards for the dielectric characteristics of biological objects and the further development of near-field resonant microwave sensing technology as an innovative medical imaging technology.
The aim of the study was to assess the effect of reactive oxygen species on the nature of dehydration structuring of blood plasma. The study was performed on 10 whole blood samples of practically healthy volunteers, divided into 3 equal portions. The first one (control) was not manipulated, the second was treated with an ozone-oxygen mixture (ozone concentration – 500 mcg/l), and the third - with a flow from a singlet oxygen generator “Airnergy” (power – 100%). The crystallogenic activity of blood serum was studied by classical crystalloscopy using a system of semi-quantitative indicators. It was stated that the considered reactive oxygen species (ozone and singlet oxygen intermediates) increase the crystallogenic properties of blood plasma, and this effect is more pronounced with respect to the flow from the singlet oxygen generator.
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