iontophoresis

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Note added at 4 mins (2009-03-09 15:48:01 GMT)
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Iontophoresis is a non-invasive method of propelling high concentrations of a charged substance, normally medication or bioactive agents, transdermally by repulsive electromotive force using a small electrical charge applied to an iontophoretic chamber containing a similarly charged active agent and its vehicle.

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Note added at 5 mins (2009-03-09 15:49:11 GMT)
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Ionophoresis is a means to apply drugs or chemicals to cells using a
micropipette. It basically uses electrical current to drive the charged
substance(s) in the pipette to the bath solution.

The advantage of using ionophoresis is that it is very easy, especially
that you can controlled it using almost any commercial program such as
pClamp. However, the exact concentration of the drug you "spit out" can
be difficult to calibrate.



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Note added at 6 mins (2009-03-09 15:49:56 GMT)
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at this stage, you must determine which term is best according to the rest of the text

--Jonophoresis--

I have also seen it being called 'Jonophoresis'(ang)-

http://www.pacificbodyslim.com/equipment.html

Jonophoresis objective - Allows the esthetic products penetration. To obtain the best treatments with the emission of the less currency quantity, with the same efficacy, we realized a jonophoresis system of pulsed kind.