Carbon nanotube electrode for oxidation of dopamine

Carbon nanotube electrodes were constructed using bromoform as binder, and the oxidative behaviour of dopamine was examined at these electrodes. The two-electron oxidation of dopamine to dopaminequinone showed ideal reversibility in cyclic voltammetry, and was significantly superior to that observed at other carbon electrodes. The electrode treated with goat's brain tissue homogenate showed the same features as the untreated electrode. The results illustrate the potential of nanotube electrodes for in vitro and in vivo neurotransmitter investigations involving dopamine.