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| Registros recuperados : 23 | |
| 11. |  | ERISMAN, N. de M.; FERNANDEZ, A. M. F.; BAEZA, J.; FRRER, J.; MANSILIA, H.; DURAN, N. Non-polluting wood and pulp delignification - biomimetle ligninase systems Biotechnology Letters, v. 12, n. 4, p. 305-308, 1990.| Biblioteca(s): Embrapa Florestas. |
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| 13. | | ASSALIN, M. R.; SOUZA, D. R. C. de; ROSA, M. A.; MOLTOCARO, R. C. R.; DONAIRE, P.; DURAN, N. Estudos preliminares aplicados ao nanoencapsulamento de inseticidas neonicotinóides: tiametoxam. In: WORKSHOP DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais... São Carlos: Embrapa Instrumentação, 2017. p. 261-264.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 15. | | ASSALIN, M. R.; MORAES, S. G. de; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; DURÁN, N. Studies on degradation of glyphosate by several oxidative chemical processes: Ozonation, photolysis and heterogeneous photocatalysis. Journal of Environmental Science and Health, Part B, v. 45, n. 1, p. 89-94, 2010.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 17. | | ASSALIN, M. R.; SOUZA, D. R. C. de; ROSA, M. A.; MOLTOCARO, R. C. R.; CASTANHA, R. F.; VILELA, E. S. D.; TASIC, L.; DURÁN, N. Thiamethoxam used as nanopesticide for the effective management of Diaphorina citri psyllid: an environmental-friendly formulation. International Journal of Pest Management, p.1-9, 2022. Online first.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 18. | | JESUS-HITZSCHKY, K. R. e; ASSIS, O. B. G. de; RODRIGUES, G. S.; NESHICH, G.; DURÁN, N.; ZACKIEWICZ, M.; BONACELLI, M. B. M.; PLONSKI, G. A.; GUTERRES, S. S. Metodologia para avaliação dos impactos éticos, sociais e ambientais das nanotecnologias. In: SIMPÓSIO SOBRE INOVAÇÃO E CRIATIVIDADE CIENTÍFICA NA EMBRAPA, 2., 2010, Brasília, DF. Resumos... Brasília, DF: Embrapa, 2010. Poster 051.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 19. | | ASSALIN, M. R.; SANTOS, L. D. L. dos; SOUZA, D. R. C. de; ROSA, M. A.; MOLTOCARO, R. C. R.; CASTANHA, R. F.; DONAIRE, P. P. R.; DURAN, N. Ecotoxicity evaluation: preparation of poly-e-caprolactone and chitosannanoparticles as carriers of thiamethoxam pesticide. Journal of Physics: Conference Series, v. 1323, n. 1, 2019. Edition of the Proceedings of VI NanoSAFE International Conference, Grenoble, Nov. 2018. Article 012017.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 20. | | DURÁN, N.; MARTINEZ, D. S. T.; JUSTO, G. Z.; LIMA, R.; CASTRO, V. L. S. S. de; UMBUZEIRO, G. A.; BARBIERI, E.; DURÁN, M.; MELO, P. S.; ALVES, O. L. Interlab study on nanotoxicology of representative graphene oxide. In: INTERNATIONAL CONFERENCE ON SAFE PRODUCTION AND USE OF NANOMATERIALS, 4, 2014, Grenoble. Book of Abstract... Grenoble: Plate-Forme Nano Sécurité, 2014.| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 23 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/01/2020 |
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Data da última atualização: |
05/03/2024 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
ASSALIN, M. R.; SANTOS, L. D. L. dos; SOUZA, D. R. C. de; ROSA, M. A.; DUARTE, R. C. R. M.; CASTANHA, R. F.; DONAIRE, P. P. R.; DURAN, N. |
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Afiliação: |
MARCIA REGINA ASSALIN, CNPMA; LUCAS D. L. DOS DANTOS, CNPMA; DEBORA RENATA CASSOLI DE S DUTRA, CNPMA; MARIA APARECIDA ROSA, CNPMA; RAFAELA C. R. M. DUARTE, CNPMA; RODRIGO FERNANDES CASTANHA, CNPMA; PATRICIA PULCINI ROSVALD DONAIRE, UNIVERSIDAD FEDERAL DO ABC/SP; NELSON DURA´N, UNICAMP/SP. |
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Título: |
Nanoformulation as a tool for improvement of thiamethoxam encapsulation and evaluation of ecotoxicological impacts. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Energy, Ecology and Environment, v. 4, n. 6. p. 310-317, 2019. |
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DOI: |
https://doi.org/10.1007/s40974-019-00138-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Huanglonbing, or citrus greening, is the most serious disease of citrus which cause large economic losses. One of the strategies to avoid the spread of the disease is the control of Diaphorina citri psyllid, its insect vector, by the application of insecticides. Development of nanoinsecticides, which are less harmful to the environment and more efficient (in terms of cost and performance) than the existing formulations, is a current challenge. In this work, nanocarriers composed of chitosan–tripolyphosphate (by ionic gelification approach) and poly-ε-caprolactone (PCL)–chitosan (by double-emulsion–solvent evaporation method) for thiametoxam insecticide were developed and characterized. Toxicological assessments using Raphidocelis subcapta, Artemia salina and Caernohabditis elegans were performed comparing PCL–chitosan nanoparticle and PCL–chitosan loaded thiamethoxam in comparison to commercial pesticide. The nanoparticles obtained from optimized conditions resulted in positive charged nanoparticles, with medium dispersity. The double-emulsion method resulted in smaller nanoparticles (313.5 ± 7 nm) and increased encapsulation efficiency (36.6 ± 0.2%) in comparison to chitosan–tripolyphosphate nanoparticles. The lower encapsulation efficiency was observed in chitosan–tripolyphosphate, impairing agricultural applications. The EC50 values (mg L⁻¹) of Raphidocelis subcapitata and C. elegans obtained for poly-ε-caprolactone with thiamethoxam were 56.15 (18.91–131.21) and 66.07 (1.20–274.14), respectively, and poly-ε-caprolactone without thiamethoxam 94.26 (22.42–166.10) and 214.63 (139.08–494.3), respectively. No toxicity was found in Artemia salina. Our results indicate that nanoparticles (with and without thiamethoxam) were more toxic to soil organisms (C. elegan) than commercial formulations. MenosAbstract: Huanglonbing, or citrus greening, is the most serious disease of citrus which cause large economic losses. One of the strategies to avoid the spread of the disease is the control of Diaphorina citri psyllid, its insect vector, by the application of insecticides. Development of nanoinsecticides, which are less harmful to the environment and more efficient (in terms of cost and performance) than the existing formulations, is a current challenge. In this work, nanocarriers composed of chitosan–tripolyphosphate (by ionic gelification approach) and poly-ε-caprolactone (PCL)–chitosan (by double-emulsion–solvent evaporation method) for thiametoxam insecticide were developed and characterized. Toxicological assessments using Raphidocelis subcapta, Artemia salina and Caernohabditis elegans were performed comparing PCL–chitosan nanoparticle and PCL–chitosan loaded thiamethoxam in comparison to commercial pesticide. The nanoparticles obtained from optimized conditions resulted in positive charged nanoparticles, with medium dispersity. The double-emulsion method resulted in smaller nanoparticles (313.5 ± 7 nm) and increased encapsulation efficiency (36.6 ± 0.2%) in comparison to chitosan–tripolyphosphate nanoparticles. The lower encapsulation efficiency was observed in chitosan–tripolyphosphate, impairing agricultural applications. The EC50 values (mg L⁻¹) of Raphidocelis subcapitata and C. elegans obtained for poly-ε-caprolactone with thiamethoxam were 56.15 (18.91–131.21) an... Mostrar Tudo |
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Palavras-Chave: |
Caernohabditis elegans; Ecotoxicity; Pesticide; Polymeric nanoparticles. |
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Thesagro: |
Greening; Impacto Ambiental; Inseticida. |
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Thesaurus NAL: |
Ecotoxicology; Encapsulation; Environmental impact; Insecticides; thiamethoxam. |
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Categoria do assunto: |
-- |
|
Marc: |
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100 1 $aASSALIN, M. R.
245 $aNanoformulation as a tool for improvement of thiamethoxam encapsulation and evaluation of ecotoxicological impacts.$h[electronic resource]
260 $c2019
520 $aAbstract: Huanglonbing, or citrus greening, is the most serious disease of citrus which cause large economic losses. One of the strategies to avoid the spread of the disease is the control of Diaphorina citri psyllid, its insect vector, by the application of insecticides. Development of nanoinsecticides, which are less harmful to the environment and more efficient (in terms of cost and performance) than the existing formulations, is a current challenge. In this work, nanocarriers composed of chitosan–tripolyphosphate (by ionic gelification approach) and poly-ε-caprolactone (PCL)–chitosan (by double-emulsion–solvent evaporation method) for thiametoxam insecticide were developed and characterized. Toxicological assessments using Raphidocelis subcapta, Artemia salina and Caernohabditis elegans were performed comparing PCL–chitosan nanoparticle and PCL–chitosan loaded thiamethoxam in comparison to commercial pesticide. The nanoparticles obtained from optimized conditions resulted in positive charged nanoparticles, with medium dispersity. The double-emulsion method resulted in smaller nanoparticles (313.5 ± 7 nm) and increased encapsulation efficiency (36.6 ± 0.2%) in comparison to chitosan–tripolyphosphate nanoparticles. The lower encapsulation efficiency was observed in chitosan–tripolyphosphate, impairing agricultural applications. The EC50 values (mg L⁻¹) of Raphidocelis subcapitata and C. elegans obtained for poly-ε-caprolactone with thiamethoxam were 56.15 (18.91–131.21) and 66.07 (1.20–274.14), respectively, and poly-ε-caprolactone without thiamethoxam 94.26 (22.42–166.10) and 214.63 (139.08–494.3), respectively. No toxicity was found in Artemia salina. Our results indicate that nanoparticles (with and without thiamethoxam) were more toxic to soil organisms (C. elegan) than commercial formulations.
650 $aEcotoxicology
650 $aEncapsulation
650 $aEnvironmental impact
650 $aInsecticides
650 $athiamethoxam
650 $aGreening
650 $aImpacto Ambiental
650 $aInseticida
653 $aCaernohabditis elegans
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653 $aPesticide
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700 1 $aSANTOS, L. D. L. dos
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700 1 $aROSA, M. A.
700 1 $aDUARTE, R. C. R. M.
700 1 $aCASTANHA, R. F.
700 1 $aDONAIRE, P. P. R.
700 1 $aDURAN, N.
773 $tEnergy, Ecology and Environment$gv. 4, n. 6. p. 310-317, 2019.
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