Voltammetric Sensor for Direct Insulin Detection

Abstract

This work covers an area of planar electrochemical sensors for fast and reliable detection of species in environment under field conditions or in vitro/vivo biodetection. In this work, there were fabricated several planar carbon working electrodes using standard thick film technology which were modified with multiwalled carbon nanotubes (MWCNTs) to promote the electrochemical oxidation of insulin. These standalone planar working electrodes were successfully used for direct detection of insulin using cyclic voltammetry in electrochemical cell against conventional Ag/AgCl reference electrode and platinum auxiliary electrode.