Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection

The concentration of sodium and potassium ions in biological fluids, such as blood, urine and sweat, is indicative of several basic body function conditions. Therefore, the development of simple methods able to detect these alkaline ions is of outmost importance. In this study, we explored the elect...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Daniela Iannazzo, Claudia Espro, Angelo Ferlazzo, Consuelo Celesti, Caterina Branca, Giovanni Neri
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	graphene quantum dots K<sup>+</sup> detection Na<sup>+</sup> detection fluorescent sensors electrochemical sensors Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/53697dde40db49099fc905dd9fbc5d61
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:53697dde40db49099fc905dd9fbc5d61
record_format	dspace
spelling	oai:doaj.org-article:53697dde40db49099fc905dd9fbc5d612021-11-25T18:30:41ZElectrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection10.3390/nano111128972079-4991https://doaj.org/article/53697dde40db49099fc905dd9fbc5d612021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2897https://doaj.org/toc/2079-4991The concentration of sodium and potassium ions in biological fluids, such as blood, urine and sweat, is indicative of several basic body function conditions. Therefore, the development of simple methods able to detect these alkaline ions is of outmost importance. In this study, we explored the electrochemical and optical properties of graphene quantum dots (GQDs) combined with the selective chelating ability of the crown ethers 15-crown-5 and 18-crown-6, with the final aim to propose novel composites for the effective detection of these ions. The results obtained comparing the performances of the single GQDs and crown ethers with those of the GQDs-15-crown-5 and GQDs-18-crown-6 composites, have demonstrated the superior properties of these latter. Electrochemical investigation showed that the GQDs based composites can be exploited for the potentiometric detection of Na<sup>+</sup> and K<sup>+</sup> ions, but selectivity still remains a concern. The nanocomposites showed the characteristic fluorescence emissions of GQDs and crown ethers. The GQDs-18-crown-6 composite exhibited ratiometric fluorescence emission behavior with the variation of K<sup>+</sup> concentration, demonstrating its promising properties for the development of a selective fluorescent method for potassium determination.Daniela IannazzoClaudia EsproAngelo FerlazzoConsuelo CelestiCaterina BrancaGiovanni NeriMDPI AGarticlegraphene quantum dotsK<sup>+</sup> detectionNa<sup>+</sup> detectionfluorescent sensorselectrochemical sensorsChemistryQD1-999ENNanomaterials, Vol 11, Iss 2897, p 2897 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	graphene quantum dots K<sup>+</sup> detection Na<sup>+</sup> detection fluorescent sensors electrochemical sensors Chemistry QD1-999
spellingShingle	graphene quantum dots K<sup>+</sup> detection Na<sup>+</sup> detection fluorescent sensors electrochemical sensors Chemistry QD1-999 Daniela Iannazzo Claudia Espro Angelo Ferlazzo Consuelo Celesti Caterina Branca Giovanni Neri Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection
description	The concentration of sodium and potassium ions in biological fluids, such as blood, urine and sweat, is indicative of several basic body function conditions. Therefore, the development of simple methods able to detect these alkaline ions is of outmost importance. In this study, we explored the electrochemical and optical properties of graphene quantum dots (GQDs) combined with the selective chelating ability of the crown ethers 15-crown-5 and 18-crown-6, with the final aim to propose novel composites for the effective detection of these ions. The results obtained comparing the performances of the single GQDs and crown ethers with those of the GQDs-15-crown-5 and GQDs-18-crown-6 composites, have demonstrated the superior properties of these latter. Electrochemical investigation showed that the GQDs based composites can be exploited for the potentiometric detection of Na<sup>+</sup> and K<sup>+</sup> ions, but selectivity still remains a concern. The nanocomposites showed the characteristic fluorescence emissions of GQDs and crown ethers. The GQDs-18-crown-6 composite exhibited ratiometric fluorescence emission behavior with the variation of K<sup>+</sup> concentration, demonstrating its promising properties for the development of a selective fluorescent method for potassium determination.
format	article
author	Daniela Iannazzo Claudia Espro Angelo Ferlazzo Consuelo Celesti Caterina Branca Giovanni Neri
author_facet	Daniela Iannazzo Claudia Espro Angelo Ferlazzo Consuelo Celesti Caterina Branca Giovanni Neri
author_sort	Daniela Iannazzo
title	Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection
title_short	Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection
title_full	Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection
title_fullStr	Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection
title_full_unstemmed	Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection
title_sort	electrochemical and fluorescent properties of crown ether functionalized graphene quantum dots for potassium and sodium ions detection
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/53697dde40db49099fc905dd9fbc5d61
work_keys_str_mv	AT danielaiannazzo electrochemicalandfluorescentpropertiesofcrownetherfunctionalizedgraphenequantumdotsforpotassiumandsodiumionsdetection AT claudiaespro electrochemicalandfluorescentpropertiesofcrownetherfunctionalizedgraphenequantumdotsforpotassiumandsodiumionsdetection AT angeloferlazzo electrochemicalandfluorescentpropertiesofcrownetherfunctionalizedgraphenequantumdotsforpotassiumandsodiumionsdetection AT consuelocelesti electrochemicalandfluorescentpropertiesofcrownetherfunctionalizedgraphenequantumdotsforpotassiumandsodiumionsdetection AT caterinabranca electrochemicalandfluorescentpropertiesofcrownetherfunctionalizedgraphenequantumdotsforpotassiumandsodiumionsdetection AT giovannineri electrochemicalandfluorescentpropertiesofcrownetherfunctionalizedgraphenequantumdotsforpotassiumandsodiumionsdetection
_version_	1718411074051506176

Electrochemical and Fluorescent Properties of Crown Ether Functionalized Graphene Quantum Dots for Potassium and Sodium Ions Detection

Ejemplares similares