Graphene Oxide Modified Electrodes for Dopamine Sensing

Figure 1

Schematic representation of the fabrication of AuNCs/AGR/MWCNT nanocomposite sensor (a). SEM image showing the particle size of the fabricated AuNCs/AGR/MWCNT/GC (b). SWV of bare (dashed line) and AuNCs/AGR/MWCNT (solid line) electrodes in 0.1 M PBS (pH 7.0) containing 30 μM AA, 40 μM DA, 20 μM UA, and 30 μM FA (c) [75].