Electrochemical Sensing Fabricated with TaO Nanoparticle-Electrochemically Reduced Graphene Oxide Nanocomposite for the Detection of Oxytetracycline.

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dc.creatorMagesa, Felista
dc.creatorWu, Yiyong
dc.creatorDong, Shuai
dc.creatorTian, Yaling
dc.creatorLi, Guangli
dc.creatorVianney, John Mary
dc.creatorBuza, Joram
dc.creatorLiu, Jun
dc.creatorHe, Quanguo
dc.date2020-02-12T05:51:38Z
dc.date2020-02-12T05:51:38Z
dc.date2020-01-08
dc.date.accessioned2022-10-25T09:21:04Z
dc.date.available2022-10-25T09:21:04Z
dc.descriptionThis Research Article published by MDPI, 2020
dc.descriptionA novel tantalum pentoxide nanoparticle-electrochemically reduced graphene oxide nanocomposite-modified glassy carbon electrode (TaO-ErGO/GCE) was developed for the detection of oxytetracycline in milk. The composition, structure and morphology of GO, TaO, and TaO-ErGO were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Oxytetracycline electrochemical behavior on the bare GCE, GO/GCE, ErGO/GCE, and TaO-ErGO/GCE was studied by cyclic voltammetry. The voltammetric conditions (including scan rate, pH, deposition potential, and deposition time) were systematically optimized. With the spacious electrochemical active area, the TaO-ErGO/GCE showed a great magnification of the oxidation signal of oxytetracycline, while that of the other electrodes (GCE, GO/GCE, ErGO/GCE) could not reach the same level. Under the optimum conditions, the currents were proportional to the oxytetracycline concentration in the range from 0.2 to 10 μM, and a low detection limit of 0.095 μM (S/N = 3) was detectable. Moreover, the proposed TaO-ErGO/GCE performed practically with satisfactory results. The preparation of TaO-ErGO/GCE in the current work provides a minor outlook of detecting trace oxytetracycline in milk.
dc.formatapplication/pdf
dc.identifier31936417
dc.identifierhttps://doi.org/10.3390/biom10010110
dc.identifierhttp://dspace.nm-aist.ac.tz/handle/123456789/547
dc.identifier.urihttp://hdl.handle.net/123456789/95410
dc.languageen
dc.publisherMDPI
dc.subjectTa2O5-ErGO composition
dc.subjectElectrochemical reduced graphene oxide
dc.subjectModified electrode
dc.subjectOxytetracycline
dc.subjectVoltammetric determination
dc.titleElectrochemical Sensing Fabricated with TaO Nanoparticle-Electrochemically Reduced Graphene Oxide Nanocomposite for the Detection of Oxytetracycline.
dc.typeArticle

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