A nano interdigitated electrodes array on polymer for disposable impedimetric biosensors

Abstract

This paper presents an integrated nano interdigitated electrodes array (IDA) on polymer substrate with microfluidic system. It can be used as a miniaturized, sensitive, and easy-to-use impedimetric sensor for genomics, proteomics, and cellular analysis. A gold (Au) nano IDA has been successfully patterned on polymer (Cyclic olefin copolymer, COC) substrate, which can be widely used for disposable lab-on-a-chip applications. The fabricated device has been characterized in KCl salt solution using electrochemical impedimetric spectroscopy (EIS). The preliminary result of monitoring protein binding is demonstrated as well, which insures the potential of this device to be used for protein immunosensors.