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A NiFe Alloy Reduced on Graphene Oxide for Electrochemical Nonenzymatic Glucose Sensing

1
College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
2
Gansu Computing Center, Lanzhou 730030, China
3
Experiment Center of Northwest University for Nationalities, Lanzhou 730030, China
4
College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, China
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(11), 3972; https://doi.org/10.3390/s18113972
Received: 17 October 2018 / Revised: 7 November 2018 / Accepted: 13 November 2018 / Published: 15 November 2018
(This article belongs to the Special Issue Biosensors Incorporating Nano-particles)
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PDF [3468 KB, uploaded 17 November 2018]
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Abstract

A NiFe alloy nanoparticle/graphene oxide hybrid (NiFe/GO) was prepared for electrochemical glucose sensing. The as-prepared NiFe/GO hybrid was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The results indicated that NiFe alloy nanoparticles can be successfully deposited on GO. The electrochemical glucose sensing performance of the as-prepared NiFe/GO hybrid was studied by cyclic voltammetry and amperometric measurement. Results showed that the NiFe/GO-modified glassy carbon electrode had sensitivity of 173 μA mM−1 cm−2 for glucose sensing with a linear range up to 5 mM, which is superior to that of commonly used Ni nanoparticles. Furthermore, high selectivity for glucose detection could be achieved by the NiFe/GO hybrid. All the results demonstrated that the NiFe/GO hybrid has promise for application in electrochemical glucose sensing. View Full-Text
Keywords: NiFe alloy; graphene oxide; glucose; nonenzymatic sensor NiFe alloy; graphene oxide; glucose; nonenzymatic sensor
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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 (CC BY 4.0).

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Deng, Z.-P.; Sun, Y.; Wang, Y.-C.; Gao, J.-D. A NiFe Alloy Reduced on Graphene Oxide for Electrochemical Nonenzymatic Glucose Sensing. Sensors 2018, 18, 3972.

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