Copper Oxide Nanorods Electrodes For Organophosphate Pesticide Sensor

Abstract

Enzymatic pesticide sensor has long been used owing to its high selectivity and sensitivity; however, a number of limitations has prevented it from commercialization and portability. In this work, non-enzymatic sensor based on nanomaterial was proposed as an alternative to overcome the limits of enzyme based sensor. Copper oxide nanorods was synthesized by direct anodization and annealing techniques which require less preparation and low cost. The CuO NR arrays electrode was applied in electrochemical analysis of organophosphates pesticide. Our sensor exhibits high sensitivity of 1.227 A/molL ^-1 and desirable detection limit of 2 ng/mL, indicating the feasibility of our sensor platform which possesses higher stability, ease of usage, and more cost effective in comparison with the conventional enzymatic pesticide sensor.