Highly sensitive and selective electrochemical dopamine sensing properties of multilayer graphene nanobelts.
Nanotechnology
; 27(7): 075504, 2016 Feb 19.
Article
em En
| MEDLINE
| ID: mdl-26789379
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 µA µM(-1) cm(-2) with a linear range of 2 µM 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.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dopamina
/
Nanoestruturas
/
Técnicas Eletroquímicas
/
Grafite
Tipo de estudo:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article