Journal
ELECTROANALYSIS
Volume 20, Issue 5, Pages 550-557Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200704096
Keywords
self-assembled monolayer; in situ functionalization; cysteamine; boronic acid; dopamine
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Functionalization of gold cysteamine (Au-CA) self-assembled monolayer with 4-formylphenylboronic acid (BA) via Schiff's base formation, through in situ method to fabricate Au-CA-BA electrode is presented and described. The fabricated electrode was used as a novel sensor for accumulation and determination of dopamine (DA). The accumulation of DA as a diol on the topside of Au-CA-BA as a Lewis acid, was performed via esterification (Au-CA-BA-DA), and followed for determination of DA. Functionalization, characterization, and determination steps were probed by electrochemical methods like cyclic voltarnmetry and electrochemical impedance spectroscopy. The data will be presented and discussed from which a new sensor for DA is introduced.
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