Figure 4From: Functionalized single-walled carbon nanotubes/polypyrrole composites for amperometric glucose biosensorsCyclic voltammograms at the PPY/GOx/SWCNTs-PhSO 3 −/PB/Pt and PPY/GOx/PB/Pt electrodes. Cyclic voltammograms at the PPY/GOx/SWCNTs-PhSO3−/PB/Pt and PPY/GOx/PB/Pt electrodes (previously subjected to 50 overoxidation cycles) in a 0.1-M phosphate buffer solution (pH 7.4), for a scan rate of 0.05 V s−1.Back to article page