Voltametric systems with a microsized interface present a range of advantages, including low currents and reduced capacitance, increased spatial resolution due to decreased probe size, higher sensitivity and lower detection limit. However, they also require specialized equipment for fabrication, some manual skills, and a deeper understanding of the exact impact of the chosen architecture. For instance, it was shown that the ratio between the insulating sheath and the interface, as well as the size of the interface, have a considerable impact on the calculated diffusion coefficient .