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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
03/07/1996 |
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Data da última atualização: |
11/02/2008 |
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Autoria: |
MERCANTE, F. M.; CUNHA, C. de O.; STRALIOTTO, R.; MARTINS, L. M. V.; FRANCO, A. A.; RUMJANEK, N. G. |
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Título: |
Efeito do nitrogênio mineral na troca de sinais moleculares durante o processo de infecção ds raizes de feijoeiro por Rhizobium. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.1, p. 495-497. |
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Idioma: |
Português |
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Palavras-Chave: |
Leguminosas; Nitrogênio mineral; Raízes. |
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Thesagro: |
Feijão; Phaseolus Vulgaris; Rhizobium. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00800naa a2200241 a 4500
001 1364401
005 2008-02-11
008 1995 bl uuuu u00u1 u #d
100 1 $aMERCANTE, F. M.
245 $aEfeito do nitrogênio mineral na troca de sinais moleculares durante o processo de infecção ds raizes de feijoeiro por Rhizobium.
260 $c1995
650 $aFeijão
650 $aPhaseolus Vulgaris
650 $aRhizobium
653 $aLeguminosas
653 $aNitrogênio mineral
653 $aRaízes
700 1 $aCUNHA, C. de O.
700 1 $aSTRALIOTTO, R.
700 1 $aMARTINS, L. M. V.
700 1 $aFRANCO, A. A.
700 1 $aRUMJANEK, N. G.
773 $tIN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995.$gv.1, p. 495-497.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/11/2023 |
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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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Circulação/Nível: |
A - 1 |
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Autoria: |
NATARELLI, C. V. L.; BARROS, H. E. A. de; FREITAS, H. R.; BUFALO, T. C. e; DIAS, E. S.; OLIVEIRA, J. E. de; MARCONCINI, J. M. |
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Afiliação: |
Federal University of São Carlos; Department of Food Science, Federal University of Lavras, Lavras, MG, Brazil; Department of Physics, Federal University of Lavras, Lavras, MG, Brazil; Department of Physics, Federal University of Lavras, Lavras, MG, Brazil; Department of Biology, Federal University of Lavras, Lavras, MG, Brazil; Department of Engineering, Federal University of Lavras, Lavras, MG, Brazil; JOSE MANOEL MARCONCINI, CNPDIA. |
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Título: |
PVA/zein nanofibers obtained by solution blow spinning. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Materials Science, v. 58, n. 33, 2023. |
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Páginas: |
13518 - 13529 |
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DOI: |
htps://doi.org/10.1007/s10853-023-08861-1 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT Immiscible and not fully miscible polymers are difcult to process into nanofbers. Nanofbers production techniques, such as solution blow spinning (SBS), come as alternatives to produce materials from PVA and zein. In this study, PVA/zein nanofbers were produced with the solution blow spinning (SBS) technique, while using an aqueous solution of 60% acetic acid as solvent. Nanofbers with diferent material contents were obtained with the fber?s average diameters smaller than 300 nm. FTIR spectroscopy showed that the fbers contain both materials and that only physical interactions were present between the polymers. Wetability analysis showed that increasing the zein content in the nanofbers mats to over 37.5% changed the nanofbers mats from being hydrophilic to being hydrophobic. Water vapor permeability did not signifcantly change when varying the zein content, keeping it at a higher value due to the porous structure of the nanofbers mats. Erosion of the nanofbers mats was diminished with higher zein content, while the fungal susceptibility was enhanced. The results of this study made it possible to support the proposed degradation pathway for the produced nanofbers mats and expanding the range of applications for these materials. |
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Palavras-Chave: |
FTIR spectroscopy; Solution blow spinning. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01975naa a2200241 a 4500
001 2158670
005 2024-01-15
008 2023 bl uuuu u00u1 u #d
024 7 $ahtps://doi.org/10.1007/s10853-023-08861-1$2DOI
100 1 $aNATARELLI, C. V. L.
245 $aPVA/zein nanofibers obtained by solution blow spinning.$h[electronic resource]
260 $c2023
300 $a13518 - 13529
520 $aABSTRACT Immiscible and not fully miscible polymers are difcult to process into nanofbers. Nanofbers production techniques, such as solution blow spinning (SBS), come as alternatives to produce materials from PVA and zein. In this study, PVA/zein nanofbers were produced with the solution blow spinning (SBS) technique, while using an aqueous solution of 60% acetic acid as solvent. Nanofbers with diferent material contents were obtained with the fber?s average diameters smaller than 300 nm. FTIR spectroscopy showed that the fbers contain both materials and that only physical interactions were present between the polymers. Wetability analysis showed that increasing the zein content in the nanofbers mats to over 37.5% changed the nanofbers mats from being hydrophilic to being hydrophobic. Water vapor permeability did not signifcantly change when varying the zein content, keeping it at a higher value due to the porous structure of the nanofbers mats. Erosion of the nanofbers mats was diminished with higher zein content, while the fungal susceptibility was enhanced. The results of this study made it possible to support the proposed degradation pathway for the produced nanofbers mats and expanding the range of applications for these materials.
653 $aFTIR spectroscopy
653 $aSolution blow spinning
700 1 $aBARROS, H. E. A. de
700 1 $aFREITAS, H. R.
700 1 $aBUFALO, T. C. e
700 1 $aDIAS, E. S.
700 1 $aOLIVEIRA, J. E. de
700 1 $aMARCONCINI, J. M.
773 $tJournal of Materials Science$gv. 58, n. 33, 2023.
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Embrapa Instrumentação (CNPDIA) |
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