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| 8. |  | PATERNO, L. G.; CONSTANTINO, C. L.; OLIVEIRA JUNIOR, O. N.; MATTOSO, L. H. C. Self-assembled films of polyanilines complexed with polyions. In: INTERNATIONAL CONFERENCE ON ORGANIZED MOLECULAR FILMS, 9., 2000, Potsdam. Programme and abstracts? Golm: Max Planck Institute of Colloids and Interfaces; Potsdam: University Potsdam, 2000. v. 1, p. 226, ref. T 163.| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | MATTOSO, L. H. C.; ZUCOLOTTO, V.; RAPOSO, M.; PONTES, R. S.; OLIVEIRA JUNIOR, O. N. Adsorption process of self-assembled films of doped poly(o-methoxyaniline). In: INTERNATIONAL CONFERENCE ON ORGANIZED MOLECULAR FILMS, 7., Sept. 1995, Numana, Ancona, Italia. Abstract book... [S.l.: s.n.], 1995. p.57. Ref.P-2.65.| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | RAPOSO, M.; ZUCOLOTTO, V.; PONTES, R. S.; MATTOSO, L. H. C.; OLIVEIRA JUNIOR, O. N. Kinetics of adsorption of conductive poly(o-methoxyaniline) in sel-assembled films. In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996. p.63. Ref.P1.171.| Biblioteca(s): Embrapa Instrumentação. |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
07/04/2021 |
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Data da última atualização: |
24/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MERCANTE, L. A.; IWAKI, L. E. O.; SCAGION, V. P.; OLIVEIRA JUNIOR, O. N.; MATTOSO, L. H. C.; CORREA, D. S. |
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Afiliação: |
LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA; DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Electrochemical detection of bisphenol A by tyrosinase immobilized on electrospun nanofibers decorated with gold nanoparticles. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Electrochem, v. 2, 2021. |
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Páginas: |
41 - 49 |
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DOI: |
https://doi.org/10.3390/electrochem2010004 |
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Idioma: |
Inglês |
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Conteúdo: |
Bisphenol A (BPA) is an endocrine-disrupting chemical (EDC) employed in industrial processes that causes adverse effects on the environment and human health. Sensitive and inexpensive methods to detect BPA are therefore needed. In this paper, we describe an electrochemical biosensor for detecting low levels of BPA using polymeric electrospun nanofibers of polyamide 6 (PA6) and poly(allylamine hydrochloride) (PAH) decorated with gold nanoparticles (AuNPs), namely, PA6/PAH@AuNPs, which were deposited onto a fluorine-doped tin oxide (FTO) substrate. The hybrid layer was excellent for the immobilization of tyrosinase (Tyr), which allowed an amperometric detection of BPA with a limit of detection of 0.011 µM in the concentration range from 0.05 to 20 µM. Detection was also possible in real water samples with recoveries in the range of 92–105%. The improved sensing performance is attributed to the combined effect of the large surface area and porosity of PA6/PAH nanofibers, the catalytic activity of AuNPs, and oxidoreductase ability of Tyr. These results prov |
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Palavras-Chave: |
Biosensor; Electrospinning; Gold nanoparticles; Tyrosinase. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222387/1/P-Electrochemical-Detection-of-Bisphenol-A-by-Tyrosinase.pdf
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Marc: |
LEADER 01847naa a2200253 a 4500
001 2131113
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008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/electrochem2010004$2DOI
100 1 $aMERCANTE, L. A.
245 $aElectrochemical detection of bisphenol A by tyrosinase immobilized on electrospun nanofibers decorated with gold nanoparticles.$h[electronic resource]
260 $c2021
300 $a41 - 49
520 $aBisphenol A (BPA) is an endocrine-disrupting chemical (EDC) employed in industrial processes that causes adverse effects on the environment and human health. Sensitive and inexpensive methods to detect BPA are therefore needed. In this paper, we describe an electrochemical biosensor for detecting low levels of BPA using polymeric electrospun nanofibers of polyamide 6 (PA6) and poly(allylamine hydrochloride) (PAH) decorated with gold nanoparticles (AuNPs), namely, PA6/PAH@AuNPs, which were deposited onto a fluorine-doped tin oxide (FTO) substrate. The hybrid layer was excellent for the immobilization of tyrosinase (Tyr), which allowed an amperometric detection of BPA with a limit of detection of 0.011 µM in the concentration range from 0.05 to 20 µM. Detection was also possible in real water samples with recoveries in the range of 92–105%. The improved sensing performance is attributed to the combined effect of the large surface area and porosity of PA6/PAH nanofibers, the catalytic activity of AuNPs, and oxidoreductase ability of Tyr. These results prov
653 $aBiosensor
653 $aElectrospinning
653 $aGold nanoparticles
653 $aTyrosinase
700 1 $aIWAKI, L. E. O.
700 1 $aSCAGION, V. P.
700 1 $aOLIVEIRA JUNIOR, O. N.
700 1 $aMATTOSO, L. H. C.
700 1 $aCORREA, D. S.
773 $tElectrochem$gv. 2, 2021.
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