High spatial resolution single multiwalled carbon nanotube electrode for stimulation, recording, and whole cell voltage clamping of electrically active cells

de Asis, Edward D.; Leung, Joseph; Wood, Sally; Nguyen, Cattien V.
October 2009
Applied Physics Letters;10/12/2009, Vol. 95 Issue 15, p153701
Academic Journal
We report the stimulation, recording, and voltage clamp of muscle fibers using a 30 nm diameter single multiwalled carbon nanotube electrode (sMWNT electrode) tip. Because of the lower access resistance, the sMWNT electrode conducts extracellular and intracellular stimulation more efficiently compared to glass micropipettes. The sMWNT electrode records field potentials and action potentials and performs whole cell voltage clamping of single fibers.


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