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Sensors 2015, 15(12), 31083-31091; doi:10.3390/s151229846

Disposable Non-Enzymatic Glucose Sensors Using Screen-Printed Nickel/Carbon Composites on Indium Tin Oxide Electrodes

1
Department of Nanobiomedical Sciences and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Anseo-Dong, Cheonan, Chungnam 330-714, Korea
2
Department of Chemistry, College of Natural Science, Dankook University, Anseo-Dong, Cheonan, Chungnam 330-714, Korea
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Nicole Jaffrezic-Renault and Mike McShane
Received: 1 October 2015 / Revised: 24 November 2015 / Accepted: 8 December 2015 / Published: 10 December 2015
(This article belongs to the Section Biosensors)
View Full-Text   |   Download PDF [2298 KB, uploaded 10 December 2015]   |  

Abstract

Disposable screen-printed nickel/carbon composites on indium tin oxide (ITO) electrodes (DSPNCE) were developed for the detection of glucose without enzymes. The DSPNCE were prepared by screen-printing the ITO substrate with a 50 wt% nickel/carbon composite, followed by curing at 400 °C for 30 min. The redox couple of Ni(OH)2/NiOOH was deposited on the surface of the electrodes via cyclic voltammetry (CV), scanning from 0–1.5 V for 30 cycles in 0.1 M NaOH solution. The DSPNCE were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS), and electrochemical methods. The resulting electrical currents, measured by CV and chronoamperometry at 0.65 V vs. Ag/AgCl, showed a good linear response with glucose concentrations from 1.0–10 mM. Also, the prepared electrodes showed no interference from common physiologic interferents such as uric acid (UA) or ascorbic acid (AA). Therefore, this approach allowed the development of a simple, disposable glucose biosensor. View Full-Text
Keywords: nickel/carbon composite; biosensor; non-enzymatic glucose sensor; disposable glucose sensor nickel/carbon composite; biosensor; non-enzymatic glucose sensor; disposable glucose sensor
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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MDPI and ACS Style

Jeon, W.-Y.; Choi, Y.-B.; Kim, H.-H. Disposable Non-Enzymatic Glucose Sensors Using Screen-Printed Nickel/Carbon Composites on Indium Tin Oxide Electrodes. Sensors 2015, 15, 31083-31091.

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