Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326843
Type: Artigo
Title: Highly Sensitive And Selective Electrochemical Dopamine Sensing Properties Of Multilayer Graphene Nanobelts
Author: Kannan
Padmanathan Karthick; Moshkalev
Stanislav A.; Rout
Chandra Sekhar
Abstract: In the present study, we report the electrochemical sensing property of multi-layer graphene nanobelts (GNBs) towards dopamine (DA). GNBs are synthesized from natural graphite and characterized by using techniques like field-emission scanning electron microscopy, atomic force microscopy and Raman spectroscopy. An electrochemical sensor based on GNBs is developed for the detection of DA. From the cyclic voltammetry and amperometry studies, it is found that GNBs possess excellent electrocatalytic activity towards DA molecules. The developed DA sensor showed a sensitivity value of 0.95 mu A mu M-1 cm(-2) with a linear range of 2 mu M to 0.2 mM. The interference data exhibited that GNB is highly selective to DA even in the presence of common interfering species like ascorbic acid, uric acid, glucose and lactic acid.
Subject: Graphene
Nanobelts
Dopamine
Electrochemical Sensor
Editor: IOP Publishing Ltd
Bristol
Rights: fechado
Identifier DOI: 10.1088/0957-4484/27/7/075504
Address: http://iopscience.iop.org/article/10.1088/0957-4484/27/7/075504/meta
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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