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Chemosensors 2018, 6(4), 54; https://doi.org/10.3390/chemosensors6040054

Nanostructured Nickel on Porous Carbon-Silica Matrix as an Efficient Electrocatalytic Material for a Non-Enzymatic Glucose Sensor

1
Department of Engineering, University of Messina, 98166 Messina, Italy
2
Laboratory of Physics of Materials and Nanomaterials Applied at Environment, Faculty of Sciences of Gabes, Gabes 6072, Tunisia
3
Physics Department, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
4
Department of Physics, Al Imam Mohammad Ibn Saud Islamic University, Riyadh 11623, Saudi Arabia
*
Author to whom correspondence should be addressed.
Received: 24 September 2018 / Revised: 28 October 2018 / Accepted: 9 November 2018 / Published: 16 November 2018
(This article belongs to the Special Issue Nanotechnology Efforts for Chemical Sensors)
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Abstract

Nanostructured nickel on porous carbon-silica matrix (N-CS) has been synthesized using a sol gel process and subsequent pyrolysis treatment at a temperature of 650 °C. The morphology and microstructure of the N-CS sample has been investigated using XRD (X-ray Diffraction), SEM-EDS (Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy), and BET (Brunauer-Emmett-Teller) analysis. The synthesized nanocomposite has been used for developing NCS-modified screen-printed electrodes (NCS-SPCEs) and was applied in the electrochemical monitoring of glucose. After electrochemical activation, via cycling the modified electrode in a potential window from 0 to 0.8 V in 0.1 M KOH solution, the fabricated NCS-SPCEs electrodes were evaluated for the voltammetric and amperometric determination of glucose. The developed sensors showed good sensing performance towards glucose, displaying a sensitivity of 585 µA/mM cm−1 in the linear range from 0.05 to 1.5 mM, a detection limit lower than 30 µM with excellent selectivity. View Full-Text
Keywords: non-enzymatic glucose sensor; electrochemical sensor; porous carbon nanocomposite; carbon-silica-nickel non-enzymatic glucose sensor; electrochemical sensor; porous carbon nanocomposite; carbon-silica-nickel
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Zahmouli, N.; Marini, S.; Guediri, M.; Ben Mansour, N.; Hjiri, M.; El Mir, L.; Espro, C.; Neri, G.; Leonardi, S.G. Nanostructured Nickel on Porous Carbon-Silica Matrix as an Efficient Electrocatalytic Material for a Non-Enzymatic Glucose Sensor. Chemosensors 2018, 6, 54.

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