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Ferromagnetic transduction models have been proposed as a potential mechanism for mobile phone effects. These models are based on the coupling of radiofrequency and pulsed electromagnetic emissions to biogenic magnetite present in the human brain via either ferromagnetic resonance or mechanical activation of cellular ion channels.
In this study, these models are tested using a bacterial analogue (Magnetospirillum magnetotacticum) which produces intracellular biogenic magnetite similar to that present in the human brain.
Modulation type: pulsed
ばく露時間: continuous for 16 min
|ばく露時間||continuous for 16 min|
|Repetition frequency||217 Hz|
Discontinuous transmission signals (DTX) of 2 Hz were created.
|ばく露装置の詳細||A sterile plastic tube containing 1 ml of medium was placed on a plastic mount directly above the base of the mobile phone. A tone was generated at 2 min on/ 2 min off and fed by earpiece to the microphone of the mobile phone in order to create periods of DTX signals.|
|Additional information||For sham exposures, the tone sequence was running but the phone was switched off.|
No parameters are specified for this exposure.
The data revealed that exposure to mobile phone emissions resulted in a consistent and significantly higher proportion of cell death in exposed cultures versus sham-exposed cultures. Though there seems to be a repeatable trend toward higher cell mortality in magnetite-producing bacteria exposed to mobile phone emissions, it is not yet clear that this would extrapolate to a deleterious health effect in humans.