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| 1. |  | FIUZA, D. da S.; LEDO, C. A. da S.; ALVES, A. A. C.; FEREIRA, M. A. Avaliação de variedades de mandioca para tolerância à seca. In: SEMINÁRIO DE PESQUISA DO RECÔNCAVO DA BAHIA, 2.; SEMINÁRIO ESTUDANTIL DE PESQUISA DA UFRB, 2.; SEMINÁRIO DE PÓS-GRADUAÇÃO DA UFRB, 2., 2008, Cruz das Almas, BA. Sustentabilidade ambiental e qualidade de vida. Cruz das Almas: Universidade Federal do Recôncavo da Bahia, 2008.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 2. | | SILVA E LAMAS, N. da; FEREIRA, M. A.; AMARAL, Z. P. de S.; VIEIRA, J. V.; FERREIRA, M. A. J. da F.; BUSO, G. S. C. Análise de transferibilidade de marcadores microssatélites de melão para melancia. Horticultura Brasileira, Brasília, DF, v. 24, n. 1, jul. 2006. Suplemento 1. Resumo 5. Trabalho apresentado no 46. Congresso Brasileiro de Olericultura, Goiânia, 2006. Publicado também como resumo expandido na Horticultura Brasileira, Brasília, DF, v. 24, n. 2, p. 17, jul. 2006. Suplemento 2. CD-ROM.| Biblioteca(s): Embrapa Hortaliças. |
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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: |
03/08/2018 |
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Data da última atualização: |
03/08/2018 |
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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: |
CASTRO, V. L. S. S. de; CLEMENTE, Z.; JONSSON, C. M.; SILVA, M. S. G. M. e; VALLIM, J. H.; MEDEIROS, A. M. Z. de; MARTINEZ, D. S. T. |
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Afiliação: |
VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA; ZAIRA CLEMENTE, CNPEM; CLAUDIO MARTIN JONSSON, CNPMA; MARIANA SILVEIRA GUERRA MOURA E SILVA, CNPMA; JOSE HENRIQUE VALLIM, CNPMA; ALINE MARIA ZIGIOTTO DE MEDEIROS, CENA-USP; DIEGO STEFANI TEODORO MARTINEZ, CNPEM. |
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Título: |
Nanoecotoxicity assessment of graphene oxide and its relationship with humic acid. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Environmental Toxicology and Chemistry, v. 37, n. 7, p. 1998-2012, 2018. |
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DOI: |
https://doi.org/10.1002/etc.4145 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100µgL-1 (in the absence of humic acid) and 5 to 23µgL-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomaterials and the establishment of nano-regulations. Environ Toxicol Chem 2018;37:1998-2012. MenosAbstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100µgL-1 (in the absence of humic acid) and 5 to 23µgL-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomateri... Mostrar Tudo |
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Palavras-Chave: |
Ecotoxicity; Nanotecnologia; Óxido de grafeno; Predicted no-effect concentration. |
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Thesagro: |
Composto de Carbono; Composto Químico; Impacto Ambiental; Meio Ambiente Aquático. |
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Thesaurus NAL: |
Ecotoxicology; Graphene oxide; Humic acids; Nanomaterials; Nanotechnology; Risk assessment. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02720naa a2200373 a 4500
001 2093879
005 2018-08-03
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1002/etc.4145$2DOI
100 1 $aCASTRO, V. L. S. S. de
245 $aNanoecotoxicity assessment of graphene oxide and its relationship with humic acid.$h[electronic resource]
260 $c2018
520 $aAbstract: The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity. In the present study, the graphene oxide effect from aquatic ecosystems was assessed considering the interaction with humic acid on 9 organisms: Raphidocelis subcapitata (green algae), Lemna minor (aquatic plant), Lactuca sativa (lettuce), Daphnia magna (planktonic microcrustacean), Artemia salina (brine shrimp), Chironomus sancticaroli (Chironomidae), Hydra attenuata (freshwater polyp), and Caenorhabditis elegans and Panagrolaimus sp. (nematodes). The no-observed-effect concentration (NOEC) was calculated for each organism. The different criteria used to calculate NOEC values were transformed and plotted as a log-logistic function. The hypothetical 5 to 50% hazardous concentration values were, respectively, 0.023 (0.005-0.056) and 0.10 (0.031-0.31) mg L-1 for graphene oxide with and without humic acid, respectively. The safest scenario associated with the predicted no-effect concentration values for graphene oxide in the aquatic compartment were estimated as 20 to 100µgL-1 (in the absence of humic acid) and 5 to 23µgL-1 (in the presence of humic acid). Finally, the present approach contributed to the risk assessment of graphene oxide-based nanomaterials and the establishment of nano-regulations. Environ Toxicol Chem 2018;37:1998-2012.
650 $aEcotoxicology
650 $aGraphene oxide
650 $aHumic acids
650 $aNanomaterials
650 $aNanotechnology
650 $aRisk assessment
650 $aComposto de Carbono
650 $aComposto Químico
650 $aImpacto Ambiental
650 $aMeio Ambiente Aquático
653 $aEcotoxicity
653 $aNanotecnologia
653 $aÓxido de grafeno
653 $aPredicted no-effect concentration
700 1 $aCLEMENTE, Z.
700 1 $aJONSSON, C. M.
700 1 $aSILVA, M. S. G. M. e
700 1 $aVALLIM, J. H.
700 1 $aMEDEIROS, A. M. Z. de
700 1 $aMARTINEZ, D. S. T.
773 $tEnvironmental Toxicology and Chemistry$gv. 37, n. 7, p. 1998-2012, 2018.
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