PMID: 9532241Apr 9, 1998Paper

Glass pipette-carbon fiber microelectrodes for evoked potential recordings

Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Médicas E Biológicas
Márcio Flávio Dutra Moraes, N Garcia-Cairasco

Abstract

Current methods for recording field potentials with tungsten electrodes make it virtually impossible to use the same recording electrode also as a lesioning electrode, for example for histological confirmation of the recorded site, because the lesioning procedure usually wears off the tungsten tip. Therefore, the electrode would have to be replaced after each lesioning procedure, which is a very high cost solution to the problem. We present here a low cost, easy to make, high quality glass pipette-carbon fiber microelectrode that shows resistive, signal/noise and electrochemical coupling advantages over tungsten electrodes. Also, currently used carbon fiber microelectrodes often show problems with electrical continuity, especially regarding electrochemical applications using a carbon-powder/resin mixture, with consequent low performance, besides the inconvenience of handling such a mixture. We propose here a new method for manufacturing glass pipette-carbon fiber microelectrodes with several advantages when recording intracerebral field potentials.

References

Oct 1, 1985·Brain Research·J A Stamford
Aug 1, 1988·Journal of Neuroscience Methods·J Millar, G V Williams
Sep 1, 1971·Medical & Biological Engineering·L A GeddesG Wise
Jun 1, 1994·Journal of Neuroscience Methods·F Math, G Marianneau
Oct 1, 1989·Journal of Cognitive Neuroscience·M SchergT W Picton

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Citations

Apr 20, 2000·Neuroscience Letters·M F MoraesN Garcia-Cairasco
Dec 18, 2001·Hearing Research·M F Moraes, N Garcia-Cairasco
Nov 4, 2010·Progress in Biophysics and Molecular Biology·Michel Bernanos Soares MesquitaMárcio Flávio Dutra Moraes

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