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Open AccessArticle

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

College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
Gansu Computing Center, Lanzhou 730030, China
Experiment Center of Northwest University for Nationalities, Lanzhou 730030, China
College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730000, China
Author to whom correspondence should be addressed.
Sensors 2018, 18(11), 3972;
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)
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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MDPI and ACS Style

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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