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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
21/12/2017 |
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Data da última atualização: |
04/01/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SCARPARO, A. P.; MARSARO JÚNIOR, A. L.; PEREIRA, P. R. V. da S. |
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Afiliação: |
Ana Paula Scarparo, Agronomia - IFRS, Sertão; ALBERTO LUIZ MARSARO JÚNIOR, CNPT; PAULO ROBERTO VALLE DA SILVA PEREIRA, CNPT. |
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Título: |
Flutuação populacional de Plutella xylostella (L.) na cultura da canola, em Passo Fundo, RS, na safra de inverno de 2016. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: MOSTRA DE INICIAÇÃO CIENTÍFICA, 12.; MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 9., 2017, Passo Fundo. Resumos... Passo Fundo: Embrapa Trigo, 2017. |
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Páginas: |
p. 37. |
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Idioma: |
Português |
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Palavras-Chave: |
Manejo integrado de pragas. |
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Thesagro: |
Colza; Plutella Xylostella; Traça das crucíferas. |
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Thesaurus Nal: |
Canola; Integrated pest management. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169490/1/2017MICp37.pdf
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Marc: |
LEADER 00797nam a2200205 a 4500
001 2083167
005 2018-01-04
008 2017 bl uuuu u00u1 u #d
100 1 $aSCARPARO, A. P.
245 $aFlutuação populacional de Plutella xylostella (L.) na cultura da canola, em Passo Fundo, RS, na safra de inverno de 2016.$h[electronic resource]
260 $aIn: MOSTRA DE INICIAÇÃO CIENTÍFICA, 12.; MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 9., 2017, Passo Fundo. Resumos... Passo Fundo: Embrapa Trigo$c2017
300 $ap. 37.
650 $aCanola
650 $aIntegrated pest management
650 $aColza
650 $aPlutella Xylostella
650 $aTraça das crucíferas
653 $aManejo integrado de pragas
700 1 $aMARSARO JÚNIOR, A. L.
700 1 $aPEREIRA, P. R. V. da S.
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Registro original: |
Embrapa Trigo (CNPT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
08/09/2017 |
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Data da última atualização: |
20/05/2022 |
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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: |
DUARTE JUNIOR, A. P.; TAVARES, E. J. M.; ALVES, T. V. G.; MOURA, M. R. de; COSTA, C. E. F. da; SILVA JÚNIOR, J. O. C.; COSTA, R. M. R. |
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Afiliação: |
Anivaldo Pereira Duarte Junior, UFPA; ERALDO JOSE MADUREIRA TAVARES, CPATU; Taís Vanessa Gabbay Alves, UFPA; Márcia Regina de Moura, UNESP; Carlos Emmerson Ferreira da Costa, UFPA; José Otávio Carréra Silva Júnior, UFPA; Roseane Maria Ribeiro Costa, UFPA. |
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Título: |
Chitosan nanoparticles as a modified diclofenac drug release system. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Nanoparticle Research, v. 19, n. 8, article 274, 2017. |
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DOI: |
10.1007/s11051-017-3968-6 |
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Idioma: |
Inglês |
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Conteúdo: |
This study evaluated a modified nanostructured release system employing diclofenac as a drug model. Biodegradable chitosan nanoparticles were prepared with chitosan concentrations between 0.5 and 0.8% ( w/ v) by template polymerization method using methacrylic acid in aqueous solution. Chitosan-poly(methacrylic acid) (CS-PMAA) nanoparticles showed uniform size around 50?100 nm, homogeneous morphology, and spherical shape. Raw material and chitosan nanoparticles were characterized by thermal analysis, Fourier transform infrared spectroscopy (FT-IR), and transmission electron microscopy (TEM), confirming the interaction between chitosan and methacrylic acid during nanoparticles preparation. Diclofenac sorption on the chitosan nanoparticles surface was achieved by incubation in water/ethanol (1:1) drug solution in concentrations of 0.5 and 0.8 mg/mL. The diclofenac amount sorbed per gram of CS-PMAA nanoparticles, when in a 0.5 mg/mL sodium diclofenac solution, was as follows: 12.93, 15, 20.87, and 29.63 mg/g for CS-PMAA nanoparticles 0.5, 0.6, 0.7, and 0.8% ( w/ v), respectively. When a 0.8 mg/mL sodium diclofenac solution was used, higher sorption efficiencies were obtained: For CS-PMAA nanoparticles with chitosan concentrations of 0.5, 0.6, 0.7, and 0.8% ( w/ v), the sorption efficiencies were 33.39, 49.58, 55.23, and 67.2 mg/g, respectively. Diclofenac sorption kinetics followed a second-order kinetics. Drug release from nanoparticles occurred in a period of up to 48 h and obeyed Korsmeyer-Peppas model, which was characterized mainly by Fickian diffusion transport. MenosThis study evaluated a modified nanostructured release system employing diclofenac as a drug model. Biodegradable chitosan nanoparticles were prepared with chitosan concentrations between 0.5 and 0.8% ( w/ v) by template polymerization method using methacrylic acid in aqueous solution. Chitosan-poly(methacrylic acid) (CS-PMAA) nanoparticles showed uniform size around 50?100 nm, homogeneous morphology, and spherical shape. Raw material and chitosan nanoparticles were characterized by thermal analysis, Fourier transform infrared spectroscopy (FT-IR), and transmission electron microscopy (TEM), confirming the interaction between chitosan and methacrylic acid during nanoparticles preparation. Diclofenac sorption on the chitosan nanoparticles surface was achieved by incubation in water/ethanol (1:1) drug solution in concentrations of 0.5 and 0.8 mg/mL. The diclofenac amount sorbed per gram of CS-PMAA nanoparticles, when in a 0.5 mg/mL sodium diclofenac solution, was as follows: 12.93, 15, 20.87, and 29.63 mg/g for CS-PMAA nanoparticles 0.5, 0.6, 0.7, and 0.8% ( w/ v), respectively. When a 0.8 mg/mL sodium diclofenac solution was used, higher sorption efficiencies were obtained: For CS-PMAA nanoparticles with chitosan concentrations of 0.5, 0.6, 0.7, and 0.8% ( w/ v), the sorption efficiencies were 33.39, 49.58, 55.23, and 67.2 mg/g, respectively. Diclofenac sorption kinetics followed a second-order kinetics. Drug release from nanoparticles occurred in a period of up to 48 h and o... Mostrar Tudo |
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Palavras-Chave: |
Biopolímero; Nanopartícula; Nanotecnologia; Quitosana. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02347naa a2200253 a 4500
001 2075279
005 2022-05-20
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1007/s11051-017-3968-6$2DOI
100 1 $aDUARTE JUNIOR, A. P.
245 $aChitosan nanoparticles as a modified diclofenac drug release system.$h[electronic resource]
260 $c2017
520 $aThis study evaluated a modified nanostructured release system employing diclofenac as a drug model. Biodegradable chitosan nanoparticles were prepared with chitosan concentrations between 0.5 and 0.8% ( w/ v) by template polymerization method using methacrylic acid in aqueous solution. Chitosan-poly(methacrylic acid) (CS-PMAA) nanoparticles showed uniform size around 50?100 nm, homogeneous morphology, and spherical shape. Raw material and chitosan nanoparticles were characterized by thermal analysis, Fourier transform infrared spectroscopy (FT-IR), and transmission electron microscopy (TEM), confirming the interaction between chitosan and methacrylic acid during nanoparticles preparation. Diclofenac sorption on the chitosan nanoparticles surface was achieved by incubation in water/ethanol (1:1) drug solution in concentrations of 0.5 and 0.8 mg/mL. The diclofenac amount sorbed per gram of CS-PMAA nanoparticles, when in a 0.5 mg/mL sodium diclofenac solution, was as follows: 12.93, 15, 20.87, and 29.63 mg/g for CS-PMAA nanoparticles 0.5, 0.6, 0.7, and 0.8% ( w/ v), respectively. When a 0.8 mg/mL sodium diclofenac solution was used, higher sorption efficiencies were obtained: For CS-PMAA nanoparticles with chitosan concentrations of 0.5, 0.6, 0.7, and 0.8% ( w/ v), the sorption efficiencies were 33.39, 49.58, 55.23, and 67.2 mg/g, respectively. Diclofenac sorption kinetics followed a second-order kinetics. Drug release from nanoparticles occurred in a period of up to 48 h and obeyed Korsmeyer-Peppas model, which was characterized mainly by Fickian diffusion transport.
653 $aBiopolímero
653 $aNanopartícula
653 $aNanotecnologia
653 $aQuitosana
700 1 $aTAVARES, E. J. M.
700 1 $aALVES, T. V. G.
700 1 $aMOURA, M. R. de
700 1 $aCOSTA, C. E. F. da
700 1 $aSILVA JÚNIOR, J. O. C.
700 1 $aCOSTA, R. M. R.
773 $tJournal of Nanoparticle Research$gv. 19, n. 8, article 274, 2017.
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