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New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires

[Image: see text] Gallium nitride (GaN) nanowires anchored on the surface of cost-effective pencil graphite electrodes (PGEs) have been developed as a new disposable nitric oxide (NO) sensor through a hydrothermal method followed by annealing treatment. The as-obtained nanomaterials were examined by...

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Autores principales: Chandran, Bagavath, Janakiraman, Kumar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6811847/
https://www.ncbi.nlm.nih.gov/pubmed/31656890
http://dx.doi.org/10.1021/acsomega.9b01609
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author Chandran, Bagavath
Janakiraman, Kumar
author_facet Chandran, Bagavath
Janakiraman, Kumar
author_sort Chandran, Bagavath
collection PubMed
description [Image: see text] Gallium nitride (GaN) nanowires anchored on the surface of cost-effective pencil graphite electrodes (PGEs) have been developed as a new disposable nitric oxide (NO) sensor through a hydrothermal method followed by annealing treatment. The as-obtained nanomaterials were examined by field emission scanning electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and EIS. Concurrently, the electrocatalytic performance has been analyzed using cyclic voltammetry and amperometric measurements. The experimental results exhibit good electrochemical sensing performance toward the generated NO in NO(2)(–) with a wide linear detection range of 1.0 μM to 1.0 mM with a correlation coefficient of 0.999 and a detection limit of 0.180 μM. In addition, the GaN nanowire-modified PGE surface showed high selectivity for the detection of NO as compared to other relevant biomolecules. This confirms that the PGE/GaN nanowire is a new promising electrochemical sensor for the sensitive detection of NO.
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spelling pubmed-68118472019-10-25 New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires Chandran, Bagavath Janakiraman, Kumar ACS Omega [Image: see text] Gallium nitride (GaN) nanowires anchored on the surface of cost-effective pencil graphite electrodes (PGEs) have been developed as a new disposable nitric oxide (NO) sensor through a hydrothermal method followed by annealing treatment. The as-obtained nanomaterials were examined by field emission scanning electron microscopy, high-resolution transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and EIS. Concurrently, the electrocatalytic performance has been analyzed using cyclic voltammetry and amperometric measurements. The experimental results exhibit good electrochemical sensing performance toward the generated NO in NO(2)(–) with a wide linear detection range of 1.0 μM to 1.0 mM with a correlation coefficient of 0.999 and a detection limit of 0.180 μM. In addition, the GaN nanowire-modified PGE surface showed high selectivity for the detection of NO as compared to other relevant biomolecules. This confirms that the PGE/GaN nanowire is a new promising electrochemical sensor for the sensitive detection of NO. American Chemical Society 2019-10-11 /pmc/articles/PMC6811847/ /pubmed/31656890 http://dx.doi.org/10.1021/acsomega.9b01609 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Chandran, Bagavath
Janakiraman, Kumar
New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires
title New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires
title_full New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires
title_fullStr New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires
title_full_unstemmed New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires
title_short New Disposable Nitric Oxide Sensor Fabrication Using GaN Nanowires
title_sort new disposable nitric oxide sensor fabrication using gan nanowires
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6811847/
https://www.ncbi.nlm.nih.gov/pubmed/31656890
http://dx.doi.org/10.1021/acsomega.9b01609
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