A dopamine electrochemical sensor based on Pd-Pt alloy nanoparticles decorated polyoxometalate and multiwalled carbon nanotubes

A sensor based on polyoxometalate (POM) decorated by Pd@Pt alloy nanoparticles and carbon nanotubes was successfully prepared for sensing dopamine (DA). The sensor not only significantly enhanced the peak current response to DA, but also decreased the overpotential of DA oxidation, eliminated interference of ascorbic acid and uric acid. It can be promising candidate for detecting dopamine in human serum and dopamine hydrochloride injection.104