Copper Nanocubes Modified Glass Carbon Electrode for the Detection of Dopamine

摘要

This paper reports the synthesis of copper nanocubes (Cu NCs) and application for the electrochemical detection of dopamine (DA). The experimental results illustrate that the sensor shows an excellent electroactivity toward the oxidation of DA. By using differential pulse voltammogram (DPV), a low detection of limit (0.2 nM) with the linear calibration curves over a wide range is acquired. Moreover, the sensor exhibits good selectivity, reproducibility and stability toward detection of DA.