OPENSENS: a low-cost and multi-purpose electrochemical platform

A potentiostat is necessary to achieve accurate control of potentials in an electrochemical cell for most electroanalytical techniques. While lab-built potentiostats with specific design objectives such as low manufacturing cost and field portability have been developed in recent years, there remain a lack of accessible potentiostats that prioritize measurement quality, user-friendliness, and adaptability for general laboratory use. In response, we present Opensens, an open-source, multi-purpose potentiostat that can function independently or as part of an instrument suite. The Opensens can perform accurately the Fe 3+ /Fe 2+ redox couple experiments as well as the ascorbic acid (AA) detection comparing with the commercial apparatus. Graphical Abstract