Abstract
Three-Dimensional Carbon Interdigitated electrode arrays were fabricated using a single step 365 nm UV photolithography of a negative photoresist followed by pyrolysis under nitrogen flow. The sensor was applied to selectively detect dopamine via redox cycling in the presence of ascorbic acid under physiological conditions. The sensor didn’t require any chemical modification to achieve selectivity and low limit of detection i.e., 1.5 µM and a linearity range of 5-500 µM in the presence of 0.1 mM ascorbic acid.
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