Carbon Nanohorns as a Scaffold for the Construction of Disposable Electrochemical Immunosensing Platforms. Application to the Determination of Fibrinogen in Human Plasma and Urine
dc.contributor.author | Ojeda Fernández, Irene | |
dc.contributor.author | Garcinuño, Belit | |
dc.contributor.author | Moreno Guzmán, María | |
dc.contributor.author | González Cortés, Araceli | |
dc.contributor.author | Yudasaka, Masako | |
dc.contributor.author | Iijima, Sumio | |
dc.contributor.author | Langa, Fernando | |
dc.contributor.author | Yáñez-Sedeño Orive, Paloma | |
dc.contributor.author | Pingarrón Carrazón, José Manuel | |
dc.date.accessioned | 2024-01-08T14:15:56Z | |
dc.date.available | 2024-01-08T14:15:56Z | |
dc.date.issued | 2014 | |
dc.description.abstract | We describe in this work a novel electrochemical immunosensor design making use of carbon nanohorns (CNHs) as a scaffold for the preparation of disposable immunosensing platforms for the determination of fibrinogen (Fib). The approach involved the immobilization of Fib onto activated CNHs deposited on screen-printed carbon electrodes (SPCEs) and the implementation of an indirect competitive assay using anti-Fib labeled with horseradish peroxidase (HRP) and hydroquinone (HQ) as the redox mediator. Both CNHs and the Fib-CNHs covalent assembly were characterized by microscopic and electrochemical techniques. The different variables affecting the analytical performance of the amperometric immunosensing strategy were optimized. The calibration plot for Fib allowed a range of linearity between 0.1 and 100 μg/mL (r 2 = 0.994) and a detection limit of 58 ng/ mL to be achieved. The Fib-CNHs/SPCEs exhibited an excellent storage stability of at least 42 days. The developed immunosensor provides, in general, an analytical performance better than that reported for other Fib immunosensors and commercial ELISA kits. This simple and relatively low cost immunosensor configuration permitted the sensitive and selective determination of Fib in human plasma and urine | |
dc.description.department | Depto. de Química Analítica | |
dc.description.faculty | Fac. de Ciencias Químicas | |
dc.description.refereed | TRUE | |
dc.description.sponsorship | Ministerio de Economía y ́Competitividad (España) | |
dc.description.status | pub | |
dc.identifier.citation | Anal. Chem. 2014, 86, 15, 7749–7756 Publication Date:July 7, 2014 https://doi.org/10.1021/ac501681n | |
dc.identifier.doi | 10.1021/ac501681n | |
dc.identifier.issn | 0003-2700 | |
dc.identifier.officialurl | https://doi.org/10.1021/ac501681n | |
dc.identifier.uri | https://hdl.handle.net/20.500.14352/91826 | |
dc.journal.title | Analytical Chemistry | |
dc.language.iso | eng | |
dc.page.final | 7756 | |
dc.page.initial | 7749 | |
dc.publisher | ACS | |
dc.relation.projectID | (project CTQ2012-35041) | |
dc.rights.accessRights | restricted access | |
dc.subject.cdu | 543 | |
dc.subject.keyword | Engineering controlled terms | |
dc.subject.keyword | Body fluids | |
dc.subject.keyword | Immunosensors | |
dc.subject.keyword | Plasma (human) | |
dc.subject.keyword | Scaffolds | |
dc.subject.keyword | Amperometric immunosensing | |
dc.subject.keyword | Electrochemical immunosensing | |
dc.subject.keyword | Electrochemical immunosensors | |
dc.subject.keyword | Electrochemical techniques | |
dc.subject.keyword | Horseradish peroxidase | |
dc.subject.keyword | Indirect competitive assays | |
dc.subject.keyword | Screen printed carbon electrode (SPCEs) | |
dc.subject.keyword | Selective determination | |
dc.subject.keyword | Nanohorns | |
dc.subject.ucm | Química analítica (Química) | |
dc.subject.unesco | 2301 Química Analítica | |
dc.title | Carbon Nanohorns as a Scaffold for the Construction of Disposable Electrochemical Immunosensing Platforms. Application to the Determination of Fibrinogen in Human Plasma and Urine | |
dc.type | journal article | |
dc.type.hasVersion | VoR | |
dc.volume.number | 86 | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | b4631aae-bbc4-470a-922b-73f321e2515a | |
relation.isAuthorOfPublication | 96968530-a80d-4987-a341-f4a96697f66c | |
relation.isAuthorOfPublication | 8a730734-cdf5-4b59-b017-12e2320c872e | |
relation.isAuthorOfPublication | 06ab2fa0-2b2d-4b58-80ed-82f9cc767175 | |
relation.isAuthorOfPublication | 8808f99c-5f56-4562-839a-517626c76dad | |
relation.isAuthorOfPublication.latestForDiscovery | b4631aae-bbc4-470a-922b-73f321e2515a |
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