I have read about a German group that has had success at forming
gigaseals to cells and using the current of the cell to gate a
transistor. I could find the reference if you are interested.
Brooke Paul | bpaul at darwin
Laboratory of Cellular and Molecular Neurobiology | .bio
UCI-Dept. of Psychobiology | .uci
Irvine, Ca. 92717-4330 | .edu