Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes

In this research study, we developed a voltammetric electrochemical sensor probe with a copolymer Nafion (<i>S</i><i>ulfonated Tetrafluoroethylene-based Fluoro-polymer</i>) decorated with hydrothermally prepared sandwich-type CuO/ZnO nanospikes (NSs) onto a glassy carbon elec...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mohammed M. Rahman, Md M. Alam, Sulaiman Y. M. Alfaifi, Abdullah M. Asiri, Meser M. Ali
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Nafion/CuO/ZnO NSs/GCE thiourea sensor probe differential pulse voltammetry hydrothermal method sensitivity glassy carbon electrode Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/f6c2aeab1a3242178d2229b34bef2ec1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f6c2aeab1a3242178d2229b34bef2ec1
record_format	dspace
spelling	oai:doaj.org-article:f6c2aeab1a3242178d2229b34bef2ec12021-11-25T18:49:15ZSensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes10.3390/polym132239982073-4360https://doaj.org/article/f6c2aeab1a3242178d2229b34bef2ec12021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3998https://doaj.org/toc/2073-4360In this research study, we developed a voltammetric electrochemical sensor probe with a copolymer Nafion (<i>S</i><i>ulfonated Tetrafluoroethylene-based Fluoro-polymer</i>) decorated with hydrothermally prepared sandwich-type CuO/ZnO nanospikes (NSs) onto a glassy carbon electrode (GCE) for reliable thiourea (TU) detection. The detailed characterizations in terms of structural morphology, binding energy, elemental compositions, grain size and crystallinity for synthesized NSs were performed by field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis, respectively. The differential pulse voltammetric (DPV) analysis for TU showed good linearity at current-versus-TU concentration on the calibration plot in the 0.15~1.20 mM range, which is defined as a dynamic detection range (LDR) of TU in a phosphate buffer solution. Considering the slope of LDR over the GCE-coated NSs surface area (0.0316 cm<sup>2</sup>), the TU sensor sensitivity (0.4122 µA µM<sup>−1</sup> cm<sup>−2</sup>) was obtained. Besides this, the low limit (LOD) for TU detection was calculated and found to be 23.03 ± 1.15 µM. The fabricated Nafion/CuO/ZnO NSs/GCE sensor probe was created as a reliable sensor based on reproducibility, interference effect, stability and response time. Real bio-samples were investigated and the results confirm the anticipated reliability of the TU sensor probe. Thus, this is a noble way to develop enzyme-free electrochemical sensors that could be an alternative approach for the detection of chemicals in the field of enzyme-free biosensor development technology.Mohammed M. RahmanMd M. AlamSulaiman Y. M. AlfaifiAbdullah M. AsiriMeser M. AliMDPI AGarticleNafion/CuO/ZnO NSs/GCEthiourea sensor probedifferential pulse voltammetryhydrothermal methodsensitivityglassy carbon electrodeOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3998, p 3998 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nafion/CuO/ZnO NSs/GCE thiourea sensor probe differential pulse voltammetry hydrothermal method sensitivity glassy carbon electrode Organic chemistry QD241-441
spellingShingle	Nafion/CuO/ZnO NSs/GCE thiourea sensor probe differential pulse voltammetry hydrothermal method sensitivity glassy carbon electrode Organic chemistry QD241-441 Mohammed M. Rahman Md M. Alam Sulaiman Y. M. Alfaifi Abdullah M. Asiri Meser M. Ali Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes
description	In this research study, we developed a voltammetric electrochemical sensor probe with a copolymer Nafion (<i>S</i><i>ulfonated Tetrafluoroethylene-based Fluoro-polymer</i>) decorated with hydrothermally prepared sandwich-type CuO/ZnO nanospikes (NSs) onto a glassy carbon electrode (GCE) for reliable thiourea (TU) detection. The detailed characterizations in terms of structural morphology, binding energy, elemental compositions, grain size and crystallinity for synthesized NSs were performed by field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis, respectively. The differential pulse voltammetric (DPV) analysis for TU showed good linearity at current-versus-TU concentration on the calibration plot in the 0.15~1.20 mM range, which is defined as a dynamic detection range (LDR) of TU in a phosphate buffer solution. Considering the slope of LDR over the GCE-coated NSs surface area (0.0316 cm<sup>2</sup>), the TU sensor sensitivity (0.4122 µA µM<sup>−1</sup> cm<sup>−2</sup>) was obtained. Besides this, the low limit (LOD) for TU detection was calculated and found to be 23.03 ± 1.15 µM. The fabricated Nafion/CuO/ZnO NSs/GCE sensor probe was created as a reliable sensor based on reproducibility, interference effect, stability and response time. Real bio-samples were investigated and the results confirm the anticipated reliability of the TU sensor probe. Thus, this is a noble way to develop enzyme-free electrochemical sensors that could be an alternative approach for the detection of chemicals in the field of enzyme-free biosensor development technology.
format	article
author	Mohammed M. Rahman Md M. Alam Sulaiman Y. M. Alfaifi Abdullah M. Asiri Meser M. Ali
author_facet	Mohammed M. Rahman Md M. Alam Sulaiman Y. M. Alfaifi Abdullah M. Asiri Meser M. Ali
author_sort	Mohammed M. Rahman
title	Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes
title_short	Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes
title_full	Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes
title_fullStr	Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes
title_full_unstemmed	Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes
title_sort	sensitive detection of thiourea hazardous toxin with sandwich-type nafion/cuo/zno nanospikes/glassy carbon composite electrodes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f6c2aeab1a3242178d2229b34bef2ec1
work_keys_str_mv	AT mohammedmrahman sensitivedetectionofthioureahazardoustoxinwithsandwichtypenafioncuoznonanospikesglassycarboncompositeelectrodes AT mdmalam sensitivedetectionofthioureahazardoustoxinwithsandwichtypenafioncuoznonanospikesglassycarboncompositeelectrodes AT sulaimanymalfaifi sensitivedetectionofthioureahazardoustoxinwithsandwichtypenafioncuoznonanospikesglassycarboncompositeelectrodes AT abdullahmasiri sensitivedetectionofthioureahazardoustoxinwithsandwichtypenafioncuoznonanospikesglassycarboncompositeelectrodes AT mesermali sensitivedetectionofthioureahazardoustoxinwithsandwichtypenafioncuoznonanospikesglassycarboncompositeelectrodes
_version_	1718410688360087552

Sensitive Detection of Thiourea Hazardous Toxin with Sandwich-Type Nafion/CuO/ZnO Nanospikes/Glassy Carbon Composite Electrodes

Ejemplares similares