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Editors: Vlad S, Roman NM
Publisher: Springer International Publishing
City: Cham
ISBN: 978-3-319-52875-5
Conference information: International Conference on Advancements of Medicine and Health Care through Technology; 12th - 15th October 2016, Cluj-Napoca, Romania: MEDITECH 2016

Abstract: An innovative biomimetic electrochemical sensor was elaborated for the dopamine detection using a glassy carbon electrode modified with gold nanoparticles. The molecularly imprinted polymers and nonimprinted polymers were electrochemically generated on the electrode surface after the obtaining of the self-assembled monolayer of the functional monomer - p-aminothiophenol through sulfur-gold bonds with dopamine as template molecule (in the case of molecularly imprinted polymer). Cyclic voltammetry and electrochemical impedance spectroscopy were used for the characterization of the sensor considering its response in the presence of hexacyanoferrate as redox probe, while the morphostructural characterization of the elaborated platform was realized by using atomic force microscopy. Differential pulse voltammetry experiments in saline phosphate buffer (0.02M; pH 7.4) were performed after the pre-concentration of dopamine in order to test the biomimetic sensor performance
Template and target information: dopamine
Author keywords: dopamine, electrochemical sensors, Molecularly imprinted polymers, gold nanoparticles