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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
26/07/2023 |
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Data da última atualização: |
27/11/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FACURE, M. H. M.; MERCANTE, L. A.; CORREA, D. S. |
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Afiliação: |
MURILO H. M. FACURE, UNIVERSIDADE DE SÃO PAULO (USP); LUIZA A. MERCANTE, UNIVERSIDADE FEDERAL DA BAHIA (UFBA); DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Polyacrylonitrile/Reduced Graphene Oxide Free-Standing Nanofibrous Membranes for Detecting Endocrine Disruptors. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
ACS Applied Nano Materials, v. 5, 2022. |
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Páginas: |
6376–6384 |
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DOI: |
https://doi.org/10.1021/acsanm.2c00484 |
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Idioma: |
Inglês |
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Conteúdo: |
Endocrine-disrupting chemicals (EDCs) are emerging pollutants whose uncontrolled release in natural aquatic environments can pose risks to human and animal health. In this scenario, the development of simple, low-cost, and sensitive methods to detect trace amounts of EDCs in the environment is highly sought. In this work, a nanofiber-based sensor was fabricated by functionalizing a polyacrylonitrile (PAN) electrospun nanofibrous membrane with reduced graphene oxide (rGO) to be used as a flexible and free-standing electrode to detect EDCs through electrical impedance measurements. The rGO was obtained from graphene oxide using a hydrothermal route, while the PAN/rGO composite membrane was prepared through vacuum filtration. The rGO provided high electrical conductivity to the membrane, which presented a good performance in the detection of endocrine hormones. The electrical resistance variation enabled the detection of 17αethinylestradiol (EE2) in a linear range between 10−5 and 10−11 mol L−1 . Moreover, by using the principal component analysis (PCA) for data treatment, the sensor was able to discriminate EE2, estrone, estradiol, and progesterone at 100 pmol L−1 in real river water samples. These results open up the possibility to fabricate in a simple way functionalized nanofibrous membranes to be used as sensing material for the detection of varied analytes with high sensitivity and low cost. |
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Palavras-Chave: |
Electrical impedance spectroscopy; Electrospinning; Electrospun nanofibers; Impedimetric sensor. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02154naa a2200217 a 4500
001 2155314
005 2024-11-27
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1021/acsanm.2c00484$2DOI
100 1 $aFACURE, M. H. M.
245 $aPolyacrylonitrile/Reduced Graphene Oxide Free-Standing Nanofibrous Membranes for Detecting Endocrine Disruptors.$h[electronic resource]
260 $c2023
300 $a6376–6384
520 $aEndocrine-disrupting chemicals (EDCs) are emerging pollutants whose uncontrolled release in natural aquatic environments can pose risks to human and animal health. In this scenario, the development of simple, low-cost, and sensitive methods to detect trace amounts of EDCs in the environment is highly sought. In this work, a nanofiber-based sensor was fabricated by functionalizing a polyacrylonitrile (PAN) electrospun nanofibrous membrane with reduced graphene oxide (rGO) to be used as a flexible and free-standing electrode to detect EDCs through electrical impedance measurements. The rGO was obtained from graphene oxide using a hydrothermal route, while the PAN/rGO composite membrane was prepared through vacuum filtration. The rGO provided high electrical conductivity to the membrane, which presented a good performance in the detection of endocrine hormones. The electrical resistance variation enabled the detection of 17αethinylestradiol (EE2) in a linear range between 10−5 and 10−11 mol L−1 . Moreover, by using the principal component analysis (PCA) for data treatment, the sensor was able to discriminate EE2, estrone, estradiol, and progesterone at 100 pmol L−1 in real river water samples. These results open up the possibility to fabricate in a simple way functionalized nanofibrous membranes to be used as sensing material for the detection of varied analytes with high sensitivity and low cost.
653 $aElectrical impedance spectroscopy
653 $aElectrospinning
653 $aElectrospun nanofibers
653 $aImpedimetric sensor
700 1 $aMERCANTE, L. A.
700 1 $aCORREA, D. S.
773 $tACS Applied Nano Materials$gv. 5, 2022.
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| 3. |  | PINA, T. C.; POTT, V. J.; POTT, A. Composição florística de um campo úmido de Cerrado em Terenos, Mato Grosso do Sul, Brasil. In: JORNADA CIENTÍFICA DA EMBRAPA GADO DE CORTE, 2., 2006, Campo Grande, MS. Anais [da]... 2. ed. Campo Grande, MS: Embrapa Gado de Corte, 2006. 1 p. 1 CD-ROM. CNPGC.| Tipo: Resumo em Anais de Congresso |
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| 15. | | ANDREOTTI, R.; GARCIA, M. V.; HIGA, L. O. de S.; PIÑA, F. T. B. Biology, Ecology and Importance of Rhipicephalus Ticks in Brazil. In: KUMAR, S.; BAVUGAR, R. C.; SHARMA, A. K.; MIRANDA, E. M.; CHAUBEY, A. K. (ed.) The Entomological Guide to Rhipicephalus. Nova York: Nova Science Publishers, 2021. p. 1-14. (Insects and Other Terrestrial Arthropods: Biology, Chemistry and Behavior)| Tipo: Capítulo em Livro Técnico-Científico |
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| 20. | | FREIRE, J. M.; DANTAS, B. F.; PIÑA-RODRIGUES, F. C. M. Semente social: a soma do passado, presente e futuro. Informativo Abrates, v. 30, n. 1, p. 144, Set. 2024. Edição dos Resumos do 22º Congresso Brasileiro de Sementes, Foz do Iguaçu, Set. 2024.| Tipo: Resumo em Anais de Congresso |
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