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dc.contributor.author
Dip Gandarilla, Ariamna María
dc.contributor.author
Regiart, Daniel Matias Gaston
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dc.contributor.author
Bertotti, Mauro
dc.contributor.author
Correa Glória, Juliane
dc.contributor.author
Morais Mariuba, Luís André
dc.contributor.author
Brito, Walter Ricardo
dc.date.available
2023-06-26T13:45:54Z
dc.date.issued
2020-12
dc.identifier.citation
Dip Gandarilla, Ariamna María; Regiart, Daniel Matias Gaston; Bertotti, Mauro; Correa Glória, Juliane; Morais Mariuba, Luís André; et al.; One-step enzyme-free dual electrochemical immunosensor for histidine-rich protein 2 determination; Royal Society of Chemistry; RSC Advances; 11; 1; 12-2020; 408-415
dc.identifier.issn
2046-2069
dc.identifier.uri
http://hdl.handle.net/11336/201497
dc.description.abstract
In the present work, we describe a novel one-step enzyme-free dual electrochemical immunosensor for the determination of histidine-rich protein 2 (Ag-PfHRP2), a specific malaria biomarker. A gold electrode (GE) was functionalized with thePfHRP2 antibody (Ab-PfHRP2) using dihexadecyl phosphate (DHP) polymer as an immobilization platform. The Ab-PfHRP2/DHP/GE sensor was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, Fourier-transform infrared spectroscopy, scanning electron microscopy, and atomic force microscopy. The developed immunosensor was employed for indirect Ag-PfHRP2 determination by differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The linear range was 10-400 ng mL−1and 10-500 ng mL−1for EIS and DPV, while the limit of detection was 3.3 ng mL−1and 2.8 ng mL−1, respectively. The electrochemical immunosensor was successfully applied for Ag-PfHRP2 determination in human serum samples. Its performance was compared with an ELISA test, and good correspondence was achieved. The coefficients of intra- and inter-assay variations were less than 5%. The electrochemical immunosensor is a useful and straightforward tool forin situmalaria biomarker determination.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
enzyme-free
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histidine-rich protein 2
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immunosensor
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electrochemical
dc.subject.classification
Química Analítica
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dc.subject.classification
Ciencias Químicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
One-step enzyme-free dual electrochemical immunosensor for histidine-rich protein 2 determination
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-05-06T16:16:36Z
dc.journal.volume
11
dc.journal.number
1
dc.journal.pagination
408-415
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Dip Gandarilla, Ariamna María. Universidad Federal del Amazonas.; Brasil
dc.description.fil
Fil: Regiart, Daniel Matias Gaston. Universidade de Sao Paulo; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Química de San Luis. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Química de San Luis; Argentina
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Fil: Bertotti, Mauro. Universidade de Sao Paulo; Brasil
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Fil: Correa Glória, Juliane. Fundación Oswaldo Cruz; Brasil
dc.description.fil
Fil: Morais Mariuba, Luís André. Fundación Oswaldo Cruz; Brasil
dc.description.fil
Fil: Brito, Walter Ricardo. Universidad Federal del Amazonas.; Brasil
dc.journal.title
RSC Advances
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/d0ra08729g
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2021/RA/D0RA08729G
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