A Dense Manganese Porphyrin-Nanobar Random Arrays: Direct and Electrocatalytic Oxidation of Ascorbic Acid in the Presence of Dopamine and Uric Acid

Abstract

Microelectrode arrays demonstrated an attractive behavior relate to macroelectrodes, as they can produce voltammetric responses of similar magnitude to their macro counterparts, but with a considerably less capacitive/background current. Hence, they have found an increasing use in electroanalytical sensing devices. Recently, some researches were focused on designing new types of sensing-arrays that employed micro/nanoelectrodes in both regular and random distributions [1,2]. These structures, due to their many advantageous properties, including low background charging currents, large current density related to convergent diffusion and importantly small diffu