Study type: Medical/biological study (experimental study)

Preliminary evidence for weak magnetic field effects on mechanosensitive ion channel subconducting states in Escherichia Coli med./bio.

By: Dobson J, Stewart Z, Martinac B
Published in: Electromagn Biol Med 2005; 24 (1): 89-95
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Aim of study (acc. to author)

To investigate the effects of weak magnetic fileds on ion channles of the bacterium Escherichia coli

Background/further details

The investigation were carried out on E. coli spheroplasts (these are cells without a cell wall but with a remaining cell membrane).

Endpoint

Exposure

Exposure Parameters
Exposure 1:
Exposure duration: intermittent, 60 s On/30s Off

Exposure 1

Main characteristics
Frequency
Type
Exposure duration intermittent, 60 s On/30s Off
Exposure setup
Exposure source
Additional info The coil system was fitted around a patch clamp system and phase contrast microscope. The whole apparatus was housed inside a Faraday cage.
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 1.35 mT - - - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

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

Main outcome of study (acc. to author)

A clear effect of magnetic field exposure on the the ion channel activity could be observed. However, a exact physical mechanism is still absence.

Study character:

Study funded by