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Sensors 2012, 12(4), 4860-4869; doi:10.3390/s120404860
Article

Facile One-Step Microwave-Assisted Route towards Ni Nanospheres/Reduced Graphene Oxide Hybrids for Non-Enzymatic Glucose Sensing

1
, 1,* , 1
, 1
 and 2,*
1 Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China 2 School of Materials Science & Engineering, Nanyang Technological University, 639798, Singapore
* Authors to whom correspondence should be addressed.
Received: 24 February 2012 / Revised: 14 March 2012 / Accepted: 23 March 2012 / Published: 13 April 2012
(This article belongs to the Section Biosensors)
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Abstract

In this work, a facile one-step microwave-assisted method for deposition of monodisperse Ni nanospheres on reduced graphene oxide (rGO) sheets to form Ni-rGO nanohybrids is discussed. In the presence of hydrazine monohydrate, Ni nanospheres are grown onto rGO sheets using nickel precursor and GO as starting materials in ethylene glycol (EG) solution under a low level of microwave irradiation (300 W) for 20 min, during which GO is also reduced to rGO. The as-prepared nanohybrids exhibit well-dispersed Ni nanosphere (about 80 nm in diameter) loadings and effective reduction of graphene oxide. The resulting Ni-rGO nanohybrids-modified glassy carbon electrode (GCE) shows significantly improved electrochemical performance in nonenzymatic amperometric glucose detection. In addition, interference from the oxidation of common interfering species under physiological conditions, such as ascorbic acid (AA) and uric acid (UA), is effectively avoided.
Keywords: carbon materials; nanocomposites; microwave-assisted method; sensors carbon materials; nanocomposites; microwave-assisted method; sensors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, Z.; Hu, Y.; Yang, W.; Zhou, M.; Hu, X. Facile One-Step Microwave-Assisted Route towards Ni Nanospheres/Reduced Graphene Oxide Hybrids for Non-Enzymatic Glucose Sensing. Sensors 2012, 12, 4860-4869.

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