Study type: Medical/biological study (experimental study, theoretical study)

A new approach to the problem of weak magnetic fields: an effect on living objects. med./bio.

Published in: Dokl Biochem Biophys 2003; 392: 274-278
Journal partially peer-reviewed/peer-review process unclear

Aim of study (acc. to author)

To focus attention on the well-known concept of magnetic vector potential. The aim of this study was to describe the findings of the effects of external vector potential on certain physical characteristics of simple living objects: the intensity of bioluminescence of living cells, the rate of erythrocyte sedimentation, and the mobility of hydrobionts. The effects of external vector potential on the rate of a simple chemical reaction in aqueous solution were also investigated.

Endpoint

Exposure

Exposure Parameters
Exposure 1:
Exposure duration: continuous for 1 h
-
Exposure 2:
Exposure duration: continuous for 1 h
Exposure 3:
Exposure duration: continuous for 1 h
Exposure 4:
Exposure duration: continuous for 1 h to 3.5 h
-

Exposure 1

Main characteristics
Frequency
Type
Exposure duration continuous for 1 h
Additional info Vector potential field was applied
Exposure setup
Exposure source
  • two cylindrical permanent samarium-cobalt magnets
Setup Five tubes containing water suspension of bacteria was incubated at a distance of 5 cm from the source
Additional info Test tubes with identical suspension serving as contol were incubated for 1 h at a distance of more than 1 m from the exposure tubes The stray field was attenuated using a closed cylindrical steel shield (12 cm high, 1 cm cell wall) which surrounded the magnetic circuit
Parameters

No parameters are specified for this exposure.

Exposure 2

Main characteristics
Frequency
Type
Exposure duration continuous for 1 h
Additional info Static magnetic field + vector potential field were applied
Exposure setup
Exposure source
  • two cylindrical permanent samarium-cobalt magnets
Additional info Blood stabilized with sodium citrate was kept in several pipettes, one of which was exposed to a source of vector potential field at a range of 3 cm
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 1 mT unspecified measured - -

Exposure 3

Main characteristics
Frequency
Type
Exposure duration continuous for 1 h
Additional info Static magnetic field and vector potential field were applied
Exposure setup
Exposure source
  • two cylindrical permanent samarium-cobalt magnets
Setup Petri dishes containing spirostoma and water were located at a distance 5 cm from the source.
Additional info Dishes with identical suspension serving as contol were placed at a distance of more than 1 m from the exposure dishes
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 2 mT unspecified measured - -

Exposure 4

Main characteristics
Frequency
Type
Exposure duration continuous for 1 h to 3.5 h
Additional info Vector potential field was applied
Exposure setup
Exposure source
  • two cylindrical permanent samarium-cobalt magnets
Setup One cuvette was located at a distance 5 cm from the source along the device axis and another was exposed at a distance of 15 m from the source. Both cuvettes were under the same wooden housing
Additional info Dishes with identical suspension serving as contol were placed at a distance of more than 1 m from the exposure dishes
Parameters

No parameters are specified for this exposure.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

Bacterial luminescence: 1 h exposure to vector potential exerted a distinct effect of bioluminescence suppression. The findings of exposure were retained during 2 h of observation.
Erythrocyte sedimentation: Exposure to vector potential field exerted a normalizing effect on the erythrocyte sedimentation reaction parameters. The dependence of the strength of the effect was individual and nonlinear.
Motor activity of hydrobionts: After 1 h of exposure the value of motor activity index in the control group remained virtually unchanged, whereas the value of motor activity index in the experimental group decreased.
Reaction of hydroquinone oxidation in solution: There was almost no difference between the absorption spectra of the controls, whereas the differential-mode absorption spectrum of exposed samples changed significantly.
The findings can be regarded as evidence of the effect exerted by vector potential on elementary processes.

Study character:

Study funded by