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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: |
14/06/2021 |
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Data da última atualização: |
21/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALIABADI, M.; CHEE, B. S.; MATOS, M.; CORTESE, Y. J.; NUGENT, M. J. D.; LIMA, T. A. M. de; MAGALHAES, W. L. E.; LIMA, G. G. de; FIROUZABADI, M. D. |
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Afiliação: |
MEYSAM ALIABADI, Gorgan University of Agricultural Sciences and Natural Resources; BOR SHIN CHEE, Materials Research Institute, Athlone Institute of Technology; MAILSON MATOS, Doutorando da UFPR; YVONNE J. CORTESE, Materials Research Institute, Athlone Institute of Technology; MICHAEL J. D. NUGENT, Materials Research Institute, Athlone Institute of Technology; TIELIDY A. M. DE LIMA, Materials Research Institute, Athlone Institute of Technology; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; GABRIEL GOETTEN DE LIMA, Materials Research Institute, Athlone Institute of Technology; MOHAMMADREZA DEHGHANI FIROUZABADI, Gorgan University of Agricultural Sciences and Natural Resources. |
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Título: |
Microfibrillated cellulose films containing chitosan and tannic acid for wound healing applications. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Materials Science. Materials in Medicine, v. 32, n. 6, article 67, June 2021. 12 p. |
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DOI: |
https://doi.org/10.1007/s10856-021-06536-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The effectiveness of tannic acid as antimicrobial and wound healing for burns have been shown for a century; however, uncontrolled target dosage may result in undesirable side-effects. Remarkably, tannic acid polyphenols compounds crosslinked with polymeric materials produce a strong composite containing the beneficial properties of this tannin. However, investigation of the crosslink structure and its antibacterial and regenerative properties are still unknown when using nanocellulose by mechanical defibrillation; additionally, due to the potential crosslink structure with chitosan, its structure can be complex. Therefore, this work uses bleach kraft nanocellulose in order to investigate the effect on the physical and regenerative properties when incorporated with chitosan and tannic acid. This film results in increased rigidity with a lamellar structure when incorporated with tannic acid due to its strong hydrogen bonding. The release of tannic acid varied depending on the structure it was synthesised with, whereas with chitosan it presented good release model compared to pure cellulose. In addition, exhibiting similar thermal stability as pure cellulose films with antibacterial properties tested against S. aureus and E. coli with good metabolic cellular viability while also inhibiting NF-?B activity, a characteristic of tannic acid. |
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Palavras-Chave: |
Antibacterial property; Antioxidant; Celulose microfibrilada; Membrane functionalization; Nanocellulose; Nanocelulose; Propriedade antibacterial; Slow-release. |
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Thesagro: |
Antioxidante. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02424naa a2200337 a 4500
001 2132300
005 2021-06-21
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10856-021-06536-4$2DOI
100 1 $aALIABADI, M.
245 $aMicrofibrillated cellulose films containing chitosan and tannic acid for wound healing applications.$h[electronic resource]
260 $c2021
520 $aThe effectiveness of tannic acid as antimicrobial and wound healing for burns have been shown for a century; however, uncontrolled target dosage may result in undesirable side-effects. Remarkably, tannic acid polyphenols compounds crosslinked with polymeric materials produce a strong composite containing the beneficial properties of this tannin. However, investigation of the crosslink structure and its antibacterial and regenerative properties are still unknown when using nanocellulose by mechanical defibrillation; additionally, due to the potential crosslink structure with chitosan, its structure can be complex. Therefore, this work uses bleach kraft nanocellulose in order to investigate the effect on the physical and regenerative properties when incorporated with chitosan and tannic acid. This film results in increased rigidity with a lamellar structure when incorporated with tannic acid due to its strong hydrogen bonding. The release of tannic acid varied depending on the structure it was synthesised with, whereas with chitosan it presented good release model compared to pure cellulose. In addition, exhibiting similar thermal stability as pure cellulose films with antibacterial properties tested against S. aureus and E. coli with good metabolic cellular viability while also inhibiting NF-?B activity, a characteristic of tannic acid.
650 $aAntioxidante
653 $aAntibacterial property
653 $aAntioxidant
653 $aCelulose microfibrilada
653 $aMembrane functionalization
653 $aNanocellulose
653 $aNanocelulose
653 $aPropriedade antibacterial
653 $aSlow-release
700 1 $aCHEE, B. S.
700 1 $aMATOS, M.
700 1 $aCORTESE, Y. J.
700 1 $aNUGENT, M. J. D.
700 1 $aLIMA, T. A. M. de
700 1 $aMAGALHAES, W. L. E.
700 1 $aLIMA, G. G. de
700 1 $aFIROUZABADI, M. D.
773 $tJournal of Materials Science. Materials in Medicine$gv. 32, n. 6, article 67, June 2021. 12 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
18/08/2009 |
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Data da última atualização: |
21/08/2009 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
MARCHI, E. C. S.; MARCHI, G.; SILVA, C. A. |
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Afiliação: |
Edilene Carvalho Santos Marchi Instituto Federal de Educação Ciência e Tecnologia; Giuliano Marchi, CPAC; Carlos Alberto Silva, UFLA. |
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Título: |
Organic fertilizer and humic substance effects on lettuce characteristics and nutrition. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2009. 1 CD ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this work was to organic fertilization, liming, and levels of soil conditioner composed by humic and fulvic acids on the characteristics and nutrition of "iceberg" lettuce. The experimental design was completely randomized in a 5x3x2 factorial scheme, in which 5 levels of soil conditioner ( 0, 20, 40, 100, 200 L ha-1), 3 fertilizers (chicken manure, organic compost and mineral), and liming (with or without). Lettuce shoot fresh and dry weight, shoot commercial fresh and dry weight, height, circumference, and number of leaves were evaluated. Lettuce grown with chicken manure rendered the greater circumference and higher shoot fresh commercial weight, which are the most important lettuce characteristics affection consumer purchase decisions. The soil conditioner did not influence on plant growth, except height and dry shoot weight on a very small scale. |
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Palavras-Chave: |
Lactuva sativa; Material húmico. |
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Thesagro: |
Alface; Composto Orgânico. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01567naa a2200193 a 4500
001 1570759
005 2009-08-21
008 2009 bl --- 0-- u #d
100 1 $aMARCHI, E. C. S.
245 $aOrganic fertilizer and humic substance effects on lettuce characteristics and nutrition.
260 $c2009
520 $aThe aim of this work was to organic fertilization, liming, and levels of soil conditioner composed by humic and fulvic acids on the characteristics and nutrition of "iceberg" lettuce. The experimental design was completely randomized in a 5x3x2 factorial scheme, in which 5 levels of soil conditioner ( 0, 20, 40, 100, 200 L ha-1), 3 fertilizers (chicken manure, organic compost and mineral), and liming (with or without). Lettuce shoot fresh and dry weight, shoot commercial fresh and dry weight, height, circumference, and number of leaves were evaluated. Lettuce grown with chicken manure rendered the greater circumference and higher shoot fresh commercial weight, which are the most important lettuce characteristics affection consumer purchase decisions. The soil conditioner did not influence on plant growth, except height and dry shoot weight on a very small scale.
650 $aAlface
650 $aComposto Orgânico
653 $aLactuva sativa
653 $aMaterial húmico
700 1 $aMARCHI, G.
700 1 $aSILVA, C. A.
773 $tIn: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2009. 1 CD ROM.
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