Could a cell membrane provide an electromagnetic shield ?

k p Collins kpaulc at [----------]earthlink.net
Wed Feb 11 01:52:02 EST 2004


The magnetic field would vary with
the distribution of the cellular constitution.

Everything in-there is 'atoms' and 'ions'.

The cellular membrane would modify
any applied field because it, too, is
comprised of 'atoms'.

So, depending on the field strength,
you don't get a a uniform action, but
one that [literally] reflects the cellular
constituents.

This is what "magnetic Resonance
Imaging" [MRI] is [why it gives detailed
images].

k. p. collins

"Stelios Papaioanou" <stelmed at freemail.gr> wrote in message
news:200402110419.56898.stelmed at freemail.gr...
> Hello everybody!
>
> I would like to ask you the following question:
> If we apply an external electric field of 10 v/m very close
> (~micrometers) to the surface of a neural cell membrane, what would be
> the value of the electric field that is measured inside the cell.
> Consider the cell membrane's resistance ~5 ohm/m2. Cell membrane has
> also capasitance characteristics (Don't know the exact value).
>
> Thanks in Advance
>
> Stelios Papaioanou
>
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