Projects / Programmes
The measurements and mechanisms of biological effects of electromagnetic fields
| Code |
Science |
Field |
Subfield |
| 2.15.01 |
Engineering sciences and technologies |
Metrology |
Sensors and data acquisition |
| Code |
Science |
Field |
| P180 |
Natural sciences and mathematics |
Metrology, physical instrumentation |
| B130 |
Biomedical sciences |
Physiological biophysics |
electromagnetic fields, bioelectromagnetics, electrography, magnetic water treatment, FT-IR spectroscopy, calcite, aragonite, zeta potential measurements
Researchers (14)
Organisations (4)
Abstract
The researches devoted to direct biological effects of electromagnetic fields demonstrated the capacity of organisms to react even to very weak fields, however only within certain physiological state. We were able to observe the bioeffects of the stimulative fields (sine wave, 0,025 and 0,1 mT, 50 Hz) on spruce seed germination mostly under stress conditions (drought, low pH, defined concentrations of Al, Ca etc.). In the optimal conditions there were no effects, neither were there growth effects of microwaves on yeast colonies. The researches demonstrated the possibility of bacterial and fungal cells to use an exogenous oscillating electric field of certain frequency for the transport of lactose.
The study of endogenous electromagnetic radiation from organisms was developed by the computer controlled instrumental methods (the method of electrography).
For experimental field generation and for calibration of biological sensors a system is required enabling us for precise control of field parameters including spatial dimension and structure of the field.
Under normal conditions calcium carbonate crystallises as rhomboedral calcite which accumulates on surfaces exposed to hard water. Under the influence of a magnetic field, the unstable crystal form of calcium carbonate, aragonite was observed. Aragonite does not agglomerate and accumulate. The presence of impurities in the hard water was found to be very important for the formation of aragonite. Samples were analysed by means of EM, magnetic measurements and NGIA FT-IR spectroscopy, which appeared to be a useful method for characterisation and identification of the crystallisation products. With a new approach and the application of FT-IR spectroscopy, as used in thin film characterisation, the crucial importance of impurity elements, which influence the formation of aragonite under the applied magnetic field, was confirmed. The solutions were analysed by zeta potential measurements.
