A NEW METHOD FOR MANUFACTURING CARBON-FIBER MICROELECTRODES

A new, fast and low-cost method using a carbon-fibre microelectrode is proposed. The microelectrode is constructed by glueing one or more ca rbon fibres (5 mm in diameter) with a silver resin on a silver wire or stainless steel tube. The characteristics of that microelectrode have been measured and compared with those of commercially available glass carbon-fibre microlectrodes. According to our measures, the impedance , capacity and current noise were lowered which permits these electrod es to be used in voltammetry and in detection of very low currents gen erated during formation of antigen-antibody complex.