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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
06/01/2020 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANETTE, R. S. S.; ALMEIDA, L. B. F. DE; SOUZA, N. L. G. D.; ALMEIDA, C. G. DE; OLIVEIRA, L. F. C. DE; MATOS, ELYABE M. DE; GERN, J. C.; BRANDAO, H. de M.; MUNK, M. |
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Afiliação: |
Rafaella S. S. Zanette; Leonara B. F. de Almeida; Nelson L. G. D. Souza; Camila G. de Almeida; Luiz F. C. de Oliveira; Elyabe M. de Matos; JULIANA CARINE GERN, CNPGL; HUMBERTO DE MELLO BRANDAO, CNPGL; Michele Munk. |
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Título: |
Cotton cellulose nanofiber/chitosan nanocomposite: characterization and evaluation of cytocompatibility. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Journal of Biomaterials Science, Polymer Edition, v. 30, n. 16, p. 1489-1504, 2019. |
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DOI: |
https://doi.org/10.1080/09205063.2019.1646627 |
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Idioma: |
Inglês |
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Conteúdo: |
Cellulose is a renewable polymer quite abundant on the Earth and very attractive for applications in the construction of eco-friendly biomedical products. The aim of this study was to investigate the chemical-physical characteristics of cotton cellulose nanofiber (CCN)/chitosan nanocomposite and its cytocompatibility with human embryonic kidney cells. First, the chemical composition, swelling ratio and surface topography of the nanocomposite were evaluated. Cytocompatibility was then assessed through spreading, proliferation and viability of cells. The experimental results showed that the CCN was an effective nanomaterial agent for increasing the roughness surface of chitosan film. Cell proliferation and changes in cell morphology indicated that the nanocomposite led to improved cell spreading and growth. Cell viability did not decrease after 24 h. However, the cell survival on the nanocomposite was affected at 72 h. The results indicate that CCN/chitosan nanocomposite could be a promising biocompatible biomaterial for biomedical applications. |
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Palavras-Chave: |
Biomaterials; Biopolymer; In vitro cell culture; Nanotopography; Polymeric nanomaterials. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02008naa a2200289 a 4500
001 2118188
005 2024-02-06
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/09205063.2019.1646627$2DOI
100 1 $aZANETTE, R. S. S.
245 $aCotton cellulose nanofiber/chitosan nanocomposite$bcharacterization and evaluation of cytocompatibility.$h[electronic resource]
260 $c2019
520 $aCellulose is a renewable polymer quite abundant on the Earth and very attractive for applications in the construction of eco-friendly biomedical products. The aim of this study was to investigate the chemical-physical characteristics of cotton cellulose nanofiber (CCN)/chitosan nanocomposite and its cytocompatibility with human embryonic kidney cells. First, the chemical composition, swelling ratio and surface topography of the nanocomposite were evaluated. Cytocompatibility was then assessed through spreading, proliferation and viability of cells. The experimental results showed that the CCN was an effective nanomaterial agent for increasing the roughness surface of chitosan film. Cell proliferation and changes in cell morphology indicated that the nanocomposite led to improved cell spreading and growth. Cell viability did not decrease after 24 h. However, the cell survival on the nanocomposite was affected at 72 h. The results indicate that CCN/chitosan nanocomposite could be a promising biocompatible biomaterial for biomedical applications.
653 $aBiomaterials
653 $aBiopolymer
653 $aIn vitro cell culture
653 $aNanotopography
653 $aPolymeric nanomaterials
700 1 $aALMEIDA, L. B. F. DE
700 1 $aSOUZA, N. L. G. D.
700 1 $aALMEIDA, C. G. DE
700 1 $aOLIVEIRA, L. F. C. DE
700 1 $aMATOS, ELYABE M. DE
700 1 $aGERN, J. C.
700 1 $aBRANDAO, H. de M.
700 1 $aMUNK, M.
773 $tJournal of Biomaterials Science, Polymer Edition$gv. 30, n. 16, p. 1489-1504, 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Solos. |
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Data corrente: |
11/12/2017 |
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Data da última atualização: |
11/11/2021 |
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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: |
VERGARA, C.; ARAUJO, K. E. C.; URQUIAGA, S.; SCHULTZ, N.; BALIEIRO, F. de C.; MEDEIROS, P. S.; SANTOS, L. A.; XAVIER, G. R.; ZILLI, J. E. |
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Afiliação: |
CARLOS VERGARA, UFRRJ; KARLA E. C. ARAUJO, UFRRJ; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; NIVALDO SCHULTZ, UFRRJ; FABIANO DE CARVALHO BALIEIRO, CNPS; PETER S. MEDEIROS, UFRRJ; LEANDRO A. SANTOS, UFRRJ; GUSTAVO RIBEIRO XAVIER, CNPAB; JERRI EDSON ZILLI, CNPAB. |
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Título: |
Dark septate endophytic fungi help tomato to acquire nutrients from ground plant material. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Frontiers in Microbiology, v. 8, article 2437, Dec. 2017. |
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DOI: |
https://doi.org/10.3389/fmicb.2017.02437 |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Dark septate endophytic (DSE) fungi are facultative biotrophs that associate with hundreds of plant species, contributing to their growth. These fungi may therefore aid in the search for sustainable agricultural practices. However, several ecological functions of DSE fungi need further clarification. The present study investigated the effects of DSE fungi inoculation on nutrient recovery efficiency, nutrient accumulation, and growth of tomato plants fertilized with organic and inorganic N sources. Two experiments were carried out under greenhouse conditions in a randomized blocks design, with five replicates of tomato seedlings grown in pots filled with non-sterile sandy soil. Tomato seedlings (cv. Santa Clara I-5300) inoculated with DSE fungi (isolates A101, A104, and A105) and without DSE fungi (control) were transplanted to pots filled with 12 kg of soil which had previously received finely ground plant material [Canavalia ensiformis (L.)] that was shoot enriched with 0.7 atom % 15N (organic N source experiment) or ammonium sulfate-15N enriched with 1 atom % 15N (mineral N source experiment). Growth indicators, nutrient content, amount of nitrogen (N) in the plant derived from ammonium sulfate-15N or C. ensiformis-15N, and recovery efficiency of 15N, P, and K by plants were quantified 50 days after transplanting. The treatment inoculated with DSE fungi and supplied with an organic N source showed significantly higher recovery efficiency of 15N, P, and K. In addition, the 15N, N, P, K, Ca, Mg, Fe, Mn, and Zn content, plant height, leaf number, leaf area (only for the A104 inoculation), and shoot dry matter increased. In contrast, the only positive effects observed in the presence of an inorganic N source were fertilizer-K recovery efficiency, content of K, and leaf area when inoculated with the fungus A104. Inoculation with A101, A104, and A105 promoted the growth of tomato using organic N source (finely ground C. ensiformis-15N plant material). MenosDark septate endophytic (DSE) fungi are facultative biotrophs that associate with hundreds of plant species, contributing to their growth. These fungi may therefore aid in the search for sustainable agricultural practices. However, several ecological functions of DSE fungi need further clarification. The present study investigated the effects of DSE fungi inoculation on nutrient recovery efficiency, nutrient accumulation, and growth of tomato plants fertilized with organic and inorganic N sources. Two experiments were carried out under greenhouse conditions in a randomized blocks design, with five replicates of tomato seedlings grown in pots filled with non-sterile sandy soil. Tomato seedlings (cv. Santa Clara I-5300) inoculated with DSE fungi (isolates A101, A104, and A105) and without DSE fungi (control) were transplanted to pots filled with 12 kg of soil which had previously received finely ground plant material [Canavalia ensiformis (L.)] that was shoot enriched with 0.7 atom % 15N (organic N source experiment) or ammonium sulfate-15N enriched with 1 atom % 15N (mineral N source experiment). Growth indicators, nutrient content, amount of nitrogen (N) in the plant derived from ammonium sulfate-15N or C. ensiformis-15N, and recovery efficiency of 15N, P, and K by plants were quantified 50 days after transplanting. The treatment inoculated with DSE fungi and supplied with an organic N source showed significantly higher recovery efficiency of 15N, P, and K. In addition, the ... Mostrar Tudo |
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Thesagro: |
Canavalia Ensiformis; Fósforo; Fungo; Potássio; Tomate. |
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Thesaurus NAL: |
Solanum lycopersicum. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168542/1/2017-080.pdf
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Marc: |
LEADER 02851naa a2200301 a 4500
001 2082002
005 2021-11-11
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3389/fmicb.2017.02437$2DOI
100 1 $aVERGARA, C.
245 $aDark septate endophytic fungi help tomato to acquire nutrients from ground plant material.$h[electronic resource]
260 $c2017
520 $aDark septate endophytic (DSE) fungi are facultative biotrophs that associate with hundreds of plant species, contributing to their growth. These fungi may therefore aid in the search for sustainable agricultural practices. However, several ecological functions of DSE fungi need further clarification. The present study investigated the effects of DSE fungi inoculation on nutrient recovery efficiency, nutrient accumulation, and growth of tomato plants fertilized with organic and inorganic N sources. Two experiments were carried out under greenhouse conditions in a randomized blocks design, with five replicates of tomato seedlings grown in pots filled with non-sterile sandy soil. Tomato seedlings (cv. Santa Clara I-5300) inoculated with DSE fungi (isolates A101, A104, and A105) and without DSE fungi (control) were transplanted to pots filled with 12 kg of soil which had previously received finely ground plant material [Canavalia ensiformis (L.)] that was shoot enriched with 0.7 atom % 15N (organic N source experiment) or ammonium sulfate-15N enriched with 1 atom % 15N (mineral N source experiment). Growth indicators, nutrient content, amount of nitrogen (N) in the plant derived from ammonium sulfate-15N or C. ensiformis-15N, and recovery efficiency of 15N, P, and K by plants were quantified 50 days after transplanting. The treatment inoculated with DSE fungi and supplied with an organic N source showed significantly higher recovery efficiency of 15N, P, and K. In addition, the 15N, N, P, K, Ca, Mg, Fe, Mn, and Zn content, plant height, leaf number, leaf area (only for the A104 inoculation), and shoot dry matter increased. In contrast, the only positive effects observed in the presence of an inorganic N source were fertilizer-K recovery efficiency, content of K, and leaf area when inoculated with the fungus A104. Inoculation with A101, A104, and A105 promoted the growth of tomato using organic N source (finely ground C. ensiformis-15N plant material).
650 $aSolanum lycopersicum
650 $aCanavalia Ensiformis
650 $aFósforo
650 $aFungo
650 $aPotássio
650 $aTomate
700 1 $aARAUJO, K. E. C.
700 1 $aURQUIAGA, S.
700 1 $aSCHULTZ, N.
700 1 $aBALIEIRO, F. de C.
700 1 $aMEDEIROS, P. S.
700 1 $aSANTOS, L. A.
700 1 $aXAVIER, G. R.
700 1 $aZILLI, J. E.
773 $tFrontiers in Microbiology$gv. 8, article 2437, Dec. 2017.
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