Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1788
Title: Graphene quantum dots and Cu(I) liquid crystal for advanced electrochemical detection of doxorubicine in aqueous solutions
Authors: Motoc, Sorina 
Schinteie, Bianca 
Pop, Aniela 
Negrea, Sorina Claudia 
Cretu, Carmen 
Szerb, Elisabeta 
Manea, Florica 
Affiliations: “Coriolan Dragulescu” Institute of Chemistry Timisoara of Romanian Academy 
“Coriolan Dragulescu” Institute of Chemistry Timisoara of Romanian Academy 
Politehnica University of Timisoara 
National Research and Development Institute for Industrial Ecology, ECOIND 
“Coriolan Dragulescu” Institute of Chemistry Timisoara of Romanian Academy 
“Coriolan Dragulescu” Institute of Chemistry Timisoara of Romanian Academy 
Politehnica University of Timisoara 
Keywords: Graphene quantum dots;Liquid crystalline Cu(I) coordination complex;Electrochemical detection;Doxorubicine;C-based paste electrodes
Issue Date: Oct-2021
Publisher: MDPI, Basel, Switzerland.
Abstract: 
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 the detection stage, the lowest limit of detection (1 ng/L) and the highest sensitivity (216,105 µA/mg·L−1) in comparison with reported literature data were obtained. Cu/GRQD/CNT showed good results using the 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.
Description: 
Nanomaterials, 2021, vol. 11, 2788. https://doi.org/10.3390/nano11112788.
URI: http://hdl.handle.net/123456789/1788
Appears in Collections:Articles

Files in This Item:
File Description SizeFormat
Graphene Quantum Dots and Cu(I) Liquid Crystal.pdfArticle3.68 MBAdobe PDFView/Open
Show full item record

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.