Evaluation of the electrochemical response of using screen-printed carbon electrodes (SPCE) modified with oxidized multi-walled carbon nanotubes dispersed in water - Nafion®.

The evaluation of the electrochemical determination of was carried out using a screen-printed carbon electrode (SPCE) modified with Nafion-dispersed oxidized multi-walled carbon nanotubes (OMWCNT). The morphology was studied using scanning electron microscopy (SEM), showing a complete modification of the surface with the nanotubes and yeast interaction with them instead of the graphite surface. The redox couple Fe(CN) /Fe(CN) was used to determine the electroactive area, the heterogeneous transfer constant, and the Nafion® effect.

Electrochemical determination of using glassy carbon electrodes modified with oxidized multi-walled carbon nanotubes dispersed in water -Nafion®.

The electrochemical behavior of sp was studied using a glassy carbon electrode (GCE) modified with Nafion-dispersed oxidized multi-walled carbon nanotubes (OMWCNT). The morphology was studied using scanning electron microscopy (SEM), showing that the yeast sticks to the carbon nanotube surface instead of the glassy carbon surface. The redox couple Fe(CN) /Fe(CN) was used to determine the electroactive area and the heterogeneous transfer constant, which increased 80.