The multi-channel potentiostat: Development and evaluation of a scalable mini-potentiostat array for investigating electrochemical reaction mechanisms

• DOI: 10.1371/journal.pone.0257167
• Publication Date: 2021-09-16T17:30:44Z
• Authors: Pattawong Pansodtee; John Selberg; Manping Jia; Mohammad Jafari; Harika Dechiraju; Thomas Thomsen; Marcella Gomez; Marco Rolandi; Mircea Teodorescu
• Keywords: Potentiostat

A potentiostat is an essential piece of analytical equipment for studying electrochemical devices and reactions. As the design evolve, applications systems with multiple working electrodes have become more common. These drive a need low-cost multi-channel systems. We developed portable, scalable system modular that can support 8 to 64 channels at cost as low $8 per channel. This replace functionality commercial potentiostats which upwards $10k certain applications. Each channel in has independent adjustable voltage source built-in ammeter switch, making device flexible various configurations. The designed current (nA range), but its purpose change by varying shunt resistor value. either function standalone or remotely controlled. demonstrate this control 24-channel bioelectronic ion pump open- closed- loop pH.