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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Unidades Centrais. |
Data corrente: |
22/01/2024 |
Data da última atualização: |
02/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MAGARELLI, G.; SILVA, J. G. da; RIBEIRO, C. L.; FREITAS, T. V. de; RODRIGUES, M. A.; GIL, E. de S.; MARRACCINI, P.; SOUZA, J. R. de; CASTRO, C. S. P. de; BEMQUERER, M. P. |
Afiliação: |
GABRIELLA MAGARELLI, Cenargen; JONATAS GOMES DA SILVA, UNIVERSIDADE FEDERAL DO OESTE DA BAHIA; CAROLINE LUCHTENBERG RIBEIRO; THIAGO VIANA DE FREITAS; MAGALI APARECIDA RODRIGUES, UNIVERSIDADE DE SAO PAULO; ERIC DE SOUZA GIL, UNIVERSIDADE FEDERAL DE GOIAS; PIERRE MARRACCINI, CIRAD; JURANDIR RODRIGUES DE SOUZA, UNIVERSIDADE DE BRASÍLIA; CLARISSA SILVA PIRES DE CASTRO, GIS; MARCELO PORTO BEMQUERER, CNPGL. |
Título: |
A voltammetric peptide biosensor for Cu2+ metal ion quantification in coffee seeds. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Journal of Inorganic Biochemistry, v. 251, 112441, 2024. |
DOI: |
https://doi.org/10.1016/j.jinorgbio.2023.112441 |
Idioma: |
Inglês |
Conteúdo: |
A prion-derived copper(II)-binding peptide was assembled onto a gold electrode for the building of a voltammetric biosensor for measuring the Cu2+ metal ion in biological samples. The chosen sequence was HCVNITKQHTVTTTT-NH2, with an appended cysteine residue for binding to the gold surface as a self-assembled monolayer and a histidine residue as the anchorage point for copper(II) complexation. The biosensor showed a linear range of 10-7 to 10-6 M with an 8.0 x 10-8 M detection limit and a 1.0 x 10-7 M quantification limit, with good precision, trueness, and absence of matrix effect. The quantification of Cu2+ was performed in the presence of other transition metal ions, such as Zn2+, Cd2+, Fe2+, or Ni2+, which indicates the excellent selectivity of the biosensor. When the modified electrode was applied for measuring copper(II) in calcined coffee seeds, a difference in copper amount was observed between two Coffea arabica cultivars that were submitted to a treatment with a copper-based antifungal, showing the applicability of the biosensor in the agricultural field. |
Palavras-Chave: |
Biossensor peptídico; Coffee seeds; Peptide biosensor; Prion peptide; Voltametria; Voltammetry. |
Thesagro: |
Café; Peptídeo; Semente. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02087naa a2200349 a 4500 001 2161562 005 2024-02-02 008 2024 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.jinorgbio.2023.112441$2DOI 100 1 $aMAGARELLI, G. 245 $aA voltammetric peptide biosensor for Cu2+ metal ion quantification in coffee seeds.$h[electronic resource] 260 $c2024 520 $aA prion-derived copper(II)-binding peptide was assembled onto a gold electrode for the building of a voltammetric biosensor for measuring the Cu2+ metal ion in biological samples. The chosen sequence was HCVNITKQHTVTTTT-NH2, with an appended cysteine residue for binding to the gold surface as a self-assembled monolayer and a histidine residue as the anchorage point for copper(II) complexation. The biosensor showed a linear range of 10-7 to 10-6 M with an 8.0 x 10-8 M detection limit and a 1.0 x 10-7 M quantification limit, with good precision, trueness, and absence of matrix effect. The quantification of Cu2+ was performed in the presence of other transition metal ions, such as Zn2+, Cd2+, Fe2+, or Ni2+, which indicates the excellent selectivity of the biosensor. When the modified electrode was applied for measuring copper(II) in calcined coffee seeds, a difference in copper amount was observed between two Coffea arabica cultivars that were submitted to a treatment with a copper-based antifungal, showing the applicability of the biosensor in the agricultural field. 650 $aCafé 650 $aPeptídeo 650 $aSemente 653 $aBiossensor peptídico 653 $aCoffee seeds 653 $aPeptide biosensor 653 $aPrion peptide 653 $aVoltametria 653 $aVoltammetry 700 1 $aSILVA, J. G. da 700 1 $aRIBEIRO, C. L. 700 1 $aFREITAS, T. V. de 700 1 $aRODRIGUES, M. A. 700 1 $aGIL, E. de S. 700 1 $aMARRACCINI, P. 700 1 $aSOUZA, J. R. de 700 1 $aCASTRO, C. S. P. de 700 1 $aBEMQUERER, M. P. 773 $tJournal of Inorganic Biochemistry$gv. 251, 112441, 2024.
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Embrapa Unidades Centrais (AI-SEDE) |
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1. | | SOUSA, M. P. S.; CAETANO, G. B.; MACIEL, A. T. da S.; SILVA, N. T. D. da; SOUSA, M. do S. R.; FREITAS, D. G. de. Interação entre pesquisa e educação básica por meio de programa de rádio web escolar. In: JORNADA CIENTÍFICA DA EMBRAPA AMAPÁ, 5., 2019, Macapá. Resumos... Macapá: Embrapa Amapá, 2020. Editoras técnicas: Jamile da Costa Araújo e Ana Cláudia Lira-Guedes.Tipo: Resumo em Anais de Congresso |
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