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Open AccessArticle

Electrochemically Prepared Unzipped Single Walled Carbon Nanotubes-MnO2 Nanostructure Composites for Hydrogen Peroxide and Glucose Sensing

1
Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA
2
Department of Civil and Environmental Engineering and Interdisciplinary Center of Nanotoxicity, Jackson State University, Jackson, MS 39217, USA
*
Author to whom correspondence should be addressed.
Current address: Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT 06520, USA.
Chemosensors 2019, 7(1), 1; https://doi.org/10.3390/chemosensors7010001
Received: 14 November 2018 / Revised: 21 December 2018 / Accepted: 24 December 2018 / Published: 3 January 2019
Amperometric hydrogen peroxide (H2O2) and glucose biosensors based on unzipped carbon nanotubes with modified glassy carbon electrode (GCE) have been successfully fabricated via a facile electrochemical oxidative method. In this work, we investigated the feasibility of this new form of carbon nanomaterial as a substrate electrode material for fabricating sensitive platform for H2O2 and glucose sensors. For this purpose, the manganese oxide (MnO2)/unzipped single-walled carbon nanotubes (SWCNTs) film was synthesized by the cyclic voltammetry method. The developed sensing film, MnO2/unzipped SWCNTs/GCE, displayed a satisfactory analytical performance for H2O2, including a wide linear range of 2.0 × 10−6 to 5.0 × 10−3 M with a detection limit of 0.31 × 10−6 M (10.7 ppb). This film was further applied for glucose sensing with a linearity range of 0.01 to 1.2 mM with a correlation coefficient of 0.9822 in the physiological pH (7.4). This facile, fast, environmentally-friendly, and economical preparation strategy of carbon nanomaterial-based electrode materials opens up the possibility of developing high quality biocompatible hydrogen peroxide and glucose sensors. View Full-Text
Keywords: hydrogen peroxide sensor; glucose sensor; cyclic voltammetry; unzipped SWCNTs; electrochemical method hydrogen peroxide sensor; glucose sensor; cyclic voltammetry; unzipped SWCNTs; electrochemical method
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MDPI and ACS Style

Zakaria, A.B.M.; Leszczynska, D. Electrochemically Prepared Unzipped Single Walled Carbon Nanotubes-MnO2 Nanostructure Composites for Hydrogen Peroxide and Glucose Sensing. Chemosensors 2019, 7, 1.

AMA Style

Zakaria ABM, Leszczynska D. Electrochemically Prepared Unzipped Single Walled Carbon Nanotubes-MnO2 Nanostructure Composites for Hydrogen Peroxide and Glucose Sensing. Chemosensors. 2019; 7(1):1.

Chicago/Turabian Style

Zakaria, A. B.M.; Leszczynska, Danuta. 2019. "Electrochemically Prepared Unzipped Single Walled Carbon Nanotubes-MnO2 Nanostructure Composites for Hydrogen Peroxide and Glucose Sensing" Chemosensors 7, no. 1: 1.

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