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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: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TEODORO, K. B. R.; FACURE, M. H. M.; SCHNEIDER, R.; ALVARENGA, A. D.; ANDRE, R. S.; CORREA, D. S. |
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Afiliação: |
DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Self-Standing Thin Films of Cellulose Nanocrystals and Graphene Quantum Dots for Detection of Trace Iron(III). |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
ACS Applied Nano Materials, v. 6, 2023. |
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Páginas: |
11561 - 11571 |
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DOI: |
https://doi.org/10.1021/acsanm.3c01584 |
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Idioma: |
Inglês |
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Conteúdo: |
Cellulose nanocrystal (CNC) thin films have gained attention for application in green optoelectronics devices. However, the dependence on plasticizers, external cross-linkers, or auxiliary polymers can impair the full exploration of the nanomaterials? properties. Herein, we report on the evaluation of a surface-oxidized CNCs ultrathin film, made from a formulation that excludes the use of auxiliary compounds, to be used as a sensing platform. The physicochemical characterizations using UV−vis, Fourier transform infrared , and Raman spectroscopies, nuclear magnetic resonance, zeta potential, transmission electron and field emission scanning electron microscopies, X-ray diffraction, thermogravimetric analysis, and contact angle measurement showed that the adopted procedure led to (i) the modification of the CNC surface and (ii) the formation of smaller CNCs. The production of casting films from highly diluted CNC-modified aqueous suspensions showed that a very thin, transparent, selfsupporting, and manipulable film could be obtained, which was not the case for diluted unmodified CNC suspension. Additionally, the CNC thin film has been demonstrated to be a suitable platform for hosting graphene quantum dots, based on which an optochemical sensor was successfully employed to detect iron(III) in a dynamic range from 1 fM to 2 pM, yielding a limit of detection of 0.8 fM. |
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Palavras-Chave: |
Acetalization; Metal detection; Optical sensors; Periodate oxidation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02168naa a2200253 a 4500
001 2155319
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1021/acsanm.3c01584$2DOI
100 1 $aTEODORO, K. B. R.
245 $aSelf-Standing Thin Films of Cellulose Nanocrystals and Graphene Quantum Dots for Detection of Trace Iron(III).$h[electronic resource]
260 $c2023
300 $a11561 - 11571
520 $aCellulose nanocrystal (CNC) thin films have gained attention for application in green optoelectronics devices. However, the dependence on plasticizers, external cross-linkers, or auxiliary polymers can impair the full exploration of the nanomaterials? properties. Herein, we report on the evaluation of a surface-oxidized CNCs ultrathin film, made from a formulation that excludes the use of auxiliary compounds, to be used as a sensing platform. The physicochemical characterizations using UV−vis, Fourier transform infrared , and Raman spectroscopies, nuclear magnetic resonance, zeta potential, transmission electron and field emission scanning electron microscopies, X-ray diffraction, thermogravimetric analysis, and contact angle measurement showed that the adopted procedure led to (i) the modification of the CNC surface and (ii) the formation of smaller CNCs. The production of casting films from highly diluted CNC-modified aqueous suspensions showed that a very thin, transparent, selfsupporting, and manipulable film could be obtained, which was not the case for diluted unmodified CNC suspension. Additionally, the CNC thin film has been demonstrated to be a suitable platform for hosting graphene quantum dots, based on which an optochemical sensor was successfully employed to detect iron(III) in a dynamic range from 1 fM to 2 pM, yielding a limit of detection of 0.8 fM.
653 $aAcetalization
653 $aMetal detection
653 $aOptical sensors
653 $aPeriodate oxidation
700 1 $aFACURE, M. H. M.
700 1 $aSCHNEIDER, R.
700 1 $aALVARENGA, A. D.
700 1 $aANDRE, R. S.
700 1 $aCORREA, D. S.
773 $tACS Applied Nano Materials$gv. 6, 2023.
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| Registros recuperados : 11 | |
| 4. |  | ALVARENGA, A. D.; MULKSON, A. L.; ANDRE, R. S.; SCHNEIDER, R.; MERCANTE, L. A.; CORREA, D. S. FIBRAS ELETROFIADAS PARA REMOÇÃO DE POLUENTES EM MEIOS LÍQUIDOS. In: MERCANTE, L. A.; CORRÊA, D. S. (org.). Eletrofiação e nanofibras: fundamentos e aplicações. Ponta Grossa, PR: Atena Editora, 2023. cap. 10. 236-268| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Instrumentação. |
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| 6. | | ALVARENGA, A. D.; MIGLIORINI, F. L.; TEODORO, K. B. R.; FACURE, M. H. M.; CORREA, D. S. Nanofibras poliméricas modificadas com óxido de grafeno aplicadas na remoção de corante em solução aquosa. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 4., 2019, São Carlos, SP. Ciência, inovação e mercado: anais. São Carlos, SP: Embrapa Instrumentação, 2019. Editores: Paulino Ribeiro Villas-Boas, Maria Alice Martins, Débora Marcondes Bastos Pereira Milori, Ladislau Martin Neto. SIAGRO 2019. 521-525| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | ALVARENGA, A. D.; FACURE, M. H. M.; MONTES-SÁNCHEZ, I.; OLIVEIRA, G. O. S.; LANZA, M. R. V.; MERCANTE, L. A.; CORREA, D. S. Multifunctional and sustainable soot-modified nanofibrous membrane for adsorption, sensing and hydrogen peroxide electrogeneration. Journal of Cleaner Production, n. 422, 138697, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 11. | | TEODORO, K. B. R.; ALVARENGA, A. D.; OLIVEIRA, L. F. R.; CHAGAS, P. A. M.; LOPES. R. G.; ANDRE, R. S.; MERCANTE, L. A.; ALVES, F.; STRINGASCI, M. D.; BUZZA, H. H.; INADA, N. M.; CORREA, D. S. Fast Fabrication of Multifunctional PCL/Curcumin Nanofibrous Membranes for Wound Dressings. ACS Applied Bio Materials, v. 6, 2023. 2325–2337| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 11 | |
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