Self-assembled gold decorated polydopamine nanospheres as electrochemical sensor for simultaneous determination of ascorbic acid, dopamine, uric acid and tryptophan

Herein, a new sensor based on screen-printed carbon electrodes covalently modified with self-assembled gold-decorated-polydopamine nanospheres (Au-PDNs) is reported. The sensor was applied to the simultaneous determination of the biologically significant molecules ascorbic acid (AA), dopamine (DA),...

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Veröffentlicht in:	Materials Science & Engineering C 2020-04, Vol.109, p.110602, Article 110602
Hauptverfasser:	Arroquia, Andrés, Acosta, Irene, Armada, M. Pilar García
Format:	Artikel
Sprache:	eng
Schlagworte:	Ascorbic acid Ascorbic Acid - analysis Chemical sensors Cysteamine Dopamine Dopamine - analysis Electrochemical impedance spectroscopy Electrochemical Techniques Electrochemistry Electrodes Fabrication Glutaraldehyde Gold Gold - chemistry Indoles - chemistry Materials science Nanoparticles Nanospheres Nanospheres - chemistry pH effects Polydopamine nanospheres Polymers - chemistry Self-assembled monolayer Self-assembly Sensors Spectroscopy Tryptophan Tryptophan - analysis Uric acid Uric Acid - analysis Voltammetry Working conditions
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