Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions

Two paste electrodes based on graphene quantum dots and carbon nanotubes (GRQD/CNT) and one modified with a homoleptic liquid crystalline Cu(I) based coordination complex (Cu/GRQD/CNT) were obtained and morphostructurally and electrochemically characterized in comparison with simple CNT electrode (C...

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Autores principales:	Sorina Motoc Ilies, Bianca Schinteie, Aniela Pop, Sorina Negrea, Carmen Cretu, Elisabeta I. Szerb, Florica Manea
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	graphene quantum dots liquid crystalline Cu(I) coordination complex electrochemical detection doxorubicine C-based paste electrodes Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/bfeec2f637334f62b1b34e45d2e7db72
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spelling	oai:doaj.org-article:bfeec2f637334f62b1b34e45d2e7db722021-11-25T18:29:52ZGraphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions10.3390/nano111127882079-4991https://doaj.org/article/bfeec2f637334f62b1b34e45d2e7db722021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2788https://doaj.org/toc/2079-4991Two paste electrodes based on graphene quantum dots and carbon nanotubes (GRQD/CNT) and one modified with a homoleptic liquid crystalline Cu(I) based coordination complex (Cu/GRQD/CNT) were obtained and morphostructurally and electrochemically characterized in comparison with simple CNT electrode (CNT) for doxorubicine (DOX) detection in aqueous solutions. GRQD/CNT showed the best electroanalytical performance by differential pulse voltammetry technique (DPV). Moreover, applying a preconcentration step prior to detection stage, the lowest limit of detection (1 ng/L) and the highest sensitivity (216,105 µA/mg·L<sup>−1</sup>) in comparison with reported literature data were obtained. Cu/GRQD/CNT showed good results using multiple pulse amperometry technique (MPA) and a favorable shifting of the potential detection to mitigate potential interferences. Both GRQD-based paste electrodes have a great potential for practical utility in DOX determination in water at trace concentration levels, using GRQD/CNT with DPV and in pharmaceuticals formulations using Cu/GRQD/CNT with MPA.Sorina Motoc IliesBianca SchinteieAniela PopSorina NegreaCarmen CretuElisabeta I. SzerbFlorica ManeaMDPI AGarticlegraphene quantum dotsliquid crystalline Cu(I) coordination complexelectrochemical detectiondoxorubicineC-based paste electrodesChemistryQD1-999ENNanomaterials, Vol 11, Iss 2788, p 2788 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	graphene quantum dots liquid crystalline Cu(I) coordination complex electrochemical detection doxorubicine C-based paste electrodes Chemistry QD1-999
spellingShingle	graphene quantum dots liquid crystalline Cu(I) coordination complex electrochemical detection doxorubicine C-based paste electrodes Chemistry QD1-999 Sorina Motoc Ilies Bianca Schinteie Aniela Pop Sorina Negrea Carmen Cretu Elisabeta I. Szerb Florica Manea Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions
description	Two paste electrodes based on graphene quantum dots and carbon nanotubes (GRQD/CNT) and one modified with a homoleptic liquid crystalline Cu(I) based coordination complex (Cu/GRQD/CNT) were obtained and morphostructurally and electrochemically characterized in comparison with simple CNT electrode (CNT) for doxorubicine (DOX) detection in aqueous solutions. GRQD/CNT showed the best electroanalytical performance by differential pulse voltammetry technique (DPV). Moreover, applying a preconcentration step prior to detection stage, the lowest limit of detection (1 ng/L) and the highest sensitivity (216,105 µA/mg·L<sup>−1</sup>) in comparison with reported literature data were obtained. Cu/GRQD/CNT showed good results using multiple pulse amperometry technique (MPA) and a favorable shifting of the potential detection to mitigate potential interferences. Both GRQD-based paste electrodes have a great potential for practical utility in DOX determination in water at trace concentration levels, using GRQD/CNT with DPV and in pharmaceuticals formulations using Cu/GRQD/CNT with MPA.
format	article
author	Sorina Motoc Ilies Bianca Schinteie Aniela Pop Sorina Negrea Carmen Cretu Elisabeta I. Szerb Florica Manea
author_facet	Sorina Motoc Ilies Bianca Schinteie Aniela Pop Sorina Negrea Carmen Cretu Elisabeta I. Szerb Florica Manea
author_sort	Sorina Motoc Ilies
title	Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions
title_short	Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions
title_full	Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions
title_fullStr	Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions
title_full_unstemmed	Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions
title_sort	graphene quantum dots and cu(i) liquid crystal for advanced electrochemical detection of doxorubicine in aqueous solutions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/bfeec2f637334f62b1b34e45d2e7db72
work_keys_str_mv	AT sorinamotocilies graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions AT biancaschinteie graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions AT anielapop graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions AT sorinanegrea graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions AT carmencretu graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions AT elisabetaiszerb graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions AT floricamanea graphenequantumdotsandcuiliquidcrystalforadvancedelectrochemicaldetectionofdoxorubicineinaqueoussolutions
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Graphene Quantum Dots and Cu(I) Liquid Crystal for Advanced Electrochemical Detection of Doxorubicine in Aqueous Solutions

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