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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
10/07/2017 |
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Data da última atualização: |
11/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MATTOS, B. D.; MAGALHAES, W. L. E. |
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Afiliação: |
Bruno D. Mattos, Doutorando da UFPR; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
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Título: |
Design and preparation of carbendazim-loaded alumina nanoparticles as a controlled-release biocide for wood protection. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
International Biodeterioration & Biodegradation, v. 123, p. 174-181, Sept. 2017. |
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DOI: |
http://dx.doi.org/10.1016/j.ibiod.2017.06.019 |
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Idioma: |
Inglês |
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Conteúdo: |
Biocide delivery systems are intelligent strategies towards improving the efficiency of biocides over time. Here, we have developed a biocide system by loading alumina nanoparticles with carbendazim through surfactant-assisted ball milling. The obtained biocides were further validated by their impregnation into pinewood, followed by in vitro fungi tests. Fourier-transformed infrared spectroscopy stated physical adsorption of carbendazim on alumina, while the thermogravimetric analysis revealed its adsorption in a pseudo-molecular level. The carbendazim loading efficiency was improved after surfactant addition, which was also fundamental to effectively impregnate the pinewood. The biocide release profiles could be described using the parabolic-diffusion and Korsmeyer-Peppas kinetic models, which fitted the experimental data with determination coefficients over 0.9. After 600 h, the biocide systems have released 42e76% of carbendazim, where systems with higher biocide content released faster. The pinewood solid samples were completely impregnated with the prepared biocides; however, it tended to concentrate on the wood surface. A biocide retention of only 0.4 kg m3 of sufficient to increase in 10 times the decay resistance of the pinewood, indicating very promising results. |
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Palavras-Chave: |
Alumina; Engineered nanoparticles; Liberacão lenta; Nanobiocida; Nanobiocides; Pinewood; Slow release; Surfactant-assisted ball milling; Tratamento de madeira. |
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Thesagro: |
Madeira; Oxido de alumínio. |
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Thesaurus Nal: |
Aluminum oxide; Decay resistance; Wood treatment. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02291naa a2200313 a 4500
001 2072418
005 2017-07-11
008 2017 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.ibiod.2017.06.019$2DOI
100 1 $aMATTOS, B. D.
245 $aDesign and preparation of carbendazim-loaded alumina nanoparticles as a controlled-release biocide for wood protection.$h[electronic resource]
260 $c2017
520 $aBiocide delivery systems are intelligent strategies towards improving the efficiency of biocides over time. Here, we have developed a biocide system by loading alumina nanoparticles with carbendazim through surfactant-assisted ball milling. The obtained biocides were further validated by their impregnation into pinewood, followed by in vitro fungi tests. Fourier-transformed infrared spectroscopy stated physical adsorption of carbendazim on alumina, while the thermogravimetric analysis revealed its adsorption in a pseudo-molecular level. The carbendazim loading efficiency was improved after surfactant addition, which was also fundamental to effectively impregnate the pinewood. The biocide release profiles could be described using the parabolic-diffusion and Korsmeyer-Peppas kinetic models, which fitted the experimental data with determination coefficients over 0.9. After 600 h, the biocide systems have released 42e76% of carbendazim, where systems with higher biocide content released faster. The pinewood solid samples were completely impregnated with the prepared biocides; however, it tended to concentrate on the wood surface. A biocide retention of only 0.4 kg m3 of sufficient to increase in 10 times the decay resistance of the pinewood, indicating very promising results.
650 $aAluminum oxide
650 $aDecay resistance
650 $aWood treatment
650 $aMadeira
650 $aOxido de alumínio
653 $aAlumina
653 $aEngineered nanoparticles
653 $aLiberacão lenta
653 $aNanobiocida
653 $aNanobiocides
653 $aPinewood
653 $aSlow release
653 $aSurfactant-assisted ball milling
653 $aTratamento de madeira
700 1 $aMAGALHAES, W. L. E.
773 $tInternational Biodeterioration & Biodegradation$gv. 123, p. 174-181, Sept. 2017.
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