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Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine
dc.creator | Ognjanović, Miloš | |
dc.creator | Stanković, Dalibor M. | |
dc.creator | Jović, Milica | |
dc.creator | Krstić, Milena | |
dc.creator | Lesch, Andreas | |
dc.creator | Girault, Hubert H. | |
dc.creator | Antić, Branislav | |
dc.date.accessioned | 2020-08-18T09:17:38Z | |
dc.date.available | 2020-08-18T09:17:38Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 2574-0970 | |
dc.identifier.uri | https://vet-erinar.vet.bg.ac.rs/handle/123456789/1856 | |
dc.description.abstract | Here, we report the design of a disposable single-drop voltammetric sensor for the quantitative determination of antipsychotic drug trifluoperazine (TFP). The sensor was built using inkjet-printed carbon nanotube (CNT) electrodes, which were modified with dimercaptosuccinic acid (DMSA)-coated magnetite nanoparticles uniformly dispersed over reduced graphene oxide nanosheets (DMSA/Fe3O4/RGO). The used modifying materials were characterized by electron microscopy techniques (transmission electron microscopy (TEM) and field emission-scanning electron microscopy (FE-SEM)), X-ray powder diffraction, ζ-potential measurements, dynamic light scattering (DLS), and electrochemical methods (cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS)). The developed sensor, best operated at pH 7 in the Britton-Robinson buffer solution (BRBS), shows linear electrocatalytic activity with TFP in the concentration range of 1-50 μM, a low detection limit of 0.54 μM, and excellent selectivity, repeatability, and reproducibility with an relative standard deviation (RSD) of 2.4%. A voltammetric approach using square wave voltammetry (SWV) is a sensitive technique under optimized conditions for the analytical determination of submicromolar amounts of TFP. Bare CNT and RGO- and DMSA/Fe3O4-modified CNT electrodes showed lower electrocatalytic activity than the DMSA/Fe3O4/RGO/CNT electrode. The development of this kind of TFP sensor based on nanoparticle-decorated graphene nanosheets can offer a tool for point-of-care applications as sensors in biomedicine. | en |
dc.rights | restrictedAccess | |
dc.source | ACS Applied Nano Materials | |
dc.subject | CNT electrodes | |
dc.subject | disposable sensor | |
dc.subject | graphene nanocomposite | |
dc.subject | magnetite | |
dc.subject | square wave voltammetry | |
dc.title | Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Aнтић, Бранислав; Огњановић, Милош; Станковић, Далибор М.; Јовић, Милица; Крстић, Милена П.; Лесцх, Aндреас; Гираулт, Хуберт Х.; | |
dc.citation.volume | 3 | |
dc.citation.issue | 5 | |
dc.citation.spage | 4654 | |
dc.citation.epage | 4662 | |
dc.citation.rank | M22 | |
dc.identifier.wos | 000537534900068 | |
dc.identifier.doi | 10.1021/acsanm.0c00661 | |
dc.identifier.scopus | 2-s2.0-85088110507 | |
dc.type.version | publishedVersion |