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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
20/02/2009 |
Data da última atualização: |
09/07/2020 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
SANTANA, M. de F. S. de; GASPARETTO, C. A.; SOUZA, M. L. |
Afiliação: |
MARISTELA DE FATIMA S DE SANTANA, CPATU; C. A. Gasparetto, Unicamp; M. L. Souza, UFAC. |
Título: |
Determinação de fibra alimentar em resíduos de laranja e maracujá. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: ENCONTRO NACIONAL SOBRE METODOLOGIAS DE LABORATÓRIO, 13., 2008, Belém, PA. Responsabilidade social corporativa: ecoeficiência nas práticas laboratoriais: anais. Belém, PA: Embrapa Amazônia Oriental, 2008. |
Páginas: |
p. 131-133. |
ISBN: |
978-85-87690-74-6 |
Idioma: |
Português |
Notas: |
Editores técnicos: Nádia Elígia Pinto Paracampo e Laura Figueiredo Abreu. XIII MET. |
Thesagro: |
Fibra; Laranja; Maracujá; Propriedade Físico-Química; Resíduo. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/214515/1/Responsabilidade-social-p131.pdf
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Marc: |
LEADER 00849nam a2200217 a 4500 001 1409912 005 2020-07-09 008 2008 bl uuuu u00u1 u #d 020 $a978-85-87690-74-6 100 1 $aSANTANA, M. de F. S. de 245 $aDeterminação de fibra alimentar em resíduos de laranja e maracujá. 260 $aIn: ENCONTRO NACIONAL SOBRE METODOLOGIAS DE LABORATÓRIO, 13., 2008, Belém, PA. Responsabilidade social corporativa: ecoeficiência nas práticas laboratoriais: anais. Belém, PA: Embrapa Amazônia Oriental$c2008 300 $ap. 131-133. 500 $aEditores técnicos: Nádia Elígia Pinto Paracampo e Laura Figueiredo Abreu. XIII MET. 650 $aFibra 650 $aLaranja 650 $aMaracujá 650 $aPropriedade Físico-Química 650 $aResíduo 700 1 $aGASPARETTO, C. A. 700 1 $aSOUZA, M. L.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
05/04/2021 |
Data da última atualização: |
05/04/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MEDEIROS, A. M. Z.; KHAN, L. U.; SILVA, G. H. da; OSPINA, C. A.; ALVES, O. L.; CASTRO, V. L. S. S. de; MARTINEZ, D. S. T. |
Afiliação: |
ALINE MARIA ZIGIOTTO DE MEDEIROS, CNPEM; LATIF ULLAH KHAN, CNPEM; GABRIELA HELENA DA SILVA, CNPEM; CARLOS ALBERTO OSPINA, CNPEM; OSWALDO LUIZ ALVES, IQ-UNICAMP; VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA; DIEGO STÉFANI TEODORO MARTINEZ, CNPEM. |
Título: |
Graphene oxide-silver nanoparticle hybrid material: an integrated nanosafety study in zebrafish embryos. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Ecotoxicology and Environmental Safety, v. 209, article 111776, 2021. |
ISSN: |
0147-6513 |
DOI: |
https://doi.org/10.1016/j.ecoenv.2020.111776 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: This work reports an integrated nanosafety study including the synthesis and characterization of the graphene oxide-silver nanoparticle hybrid material (GO-AgNPs) and its nano-ecotoxicity evaluation in the zebrafish embryo model. The influences of natural organic matter (NOM) and a chorion embryo membrane were considered in this study, looking towards more environmentally realistic scenarios and standardized nanotoxicity testing. The nanohybrid was successfully synthesized using the NaBH4 aqueous method, and AgNPs (~ 5.8 nm) were evenly distributed over the GO surface. GO-AgNPs showed a dose-response acute toxicity: the LC50 was 1.5 mg L-1 for chorionated embryos. The removal of chorion, however, increased this toxic effect by 50%. Furthermore, the presence of NOM mitigated mortality, and LC50 for GO-AgNPs changed respectively from 2.3 to 1.2 mg L-1 for chorionated and de-chorionated embryos. Raman spectroscopy confirmed the ingestion of GO by embryos; but without displaying acute toxicity up to 100 mg L-1, indicating that the silver drove toxicity down. Additionally, it was observed that silver nanoparticle dissolution has a minimal effect on these observed toxicity results. Finally, understanding the influence of chorion membranes and NOM is a critical step towards the standardization of testing for zebrafish embryo toxicity in safety assessments and regulatory issues. |
Palavras-Chave: |
Alternative methods; Grafeno; Nanoecotoxicology; Nanohybrids; Nanomateriais; Nanotoxicity. |
Thesagro: |
Composto de Carbono; Peixe de Água Doce; Toxidez. |
Thesaurus NAL: |
chorion; Danio rerio; Ecotoxicology; Graphene oxide; Nanomaterials. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222338/1/Castro-Graphene-oxide-2021.pdf
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Marc: |
LEADER 02533naa a2200385 a 4500 001 2131052 005 2021-04-05 008 2021 bl uuuu u00u1 u #d 022 $a0147-6513 024 7 $ahttps://doi.org/10.1016/j.ecoenv.2020.111776$2DOI 100 1 $aMEDEIROS, A. M. Z. 245 $aGraphene oxide-silver nanoparticle hybrid material$ban integrated nanosafety study in zebrafish embryos.$h[electronic resource] 260 $c2021 520 $aAbstract: This work reports an integrated nanosafety study including the synthesis and characterization of the graphene oxide-silver nanoparticle hybrid material (GO-AgNPs) and its nano-ecotoxicity evaluation in the zebrafish embryo model. The influences of natural organic matter (NOM) and a chorion embryo membrane were considered in this study, looking towards more environmentally realistic scenarios and standardized nanotoxicity testing. The nanohybrid was successfully synthesized using the NaBH4 aqueous method, and AgNPs (~ 5.8 nm) were evenly distributed over the GO surface. GO-AgNPs showed a dose-response acute toxicity: the LC50 was 1.5 mg L-1 for chorionated embryos. The removal of chorion, however, increased this toxic effect by 50%. Furthermore, the presence of NOM mitigated mortality, and LC50 for GO-AgNPs changed respectively from 2.3 to 1.2 mg L-1 for chorionated and de-chorionated embryos. Raman spectroscopy confirmed the ingestion of GO by embryos; but without displaying acute toxicity up to 100 mg L-1, indicating that the silver drove toxicity down. Additionally, it was observed that silver nanoparticle dissolution has a minimal effect on these observed toxicity results. Finally, understanding the influence of chorion membranes and NOM is a critical step towards the standardization of testing for zebrafish embryo toxicity in safety assessments and regulatory issues. 650 $achorion 650 $aDanio rerio 650 $aEcotoxicology 650 $aGraphene oxide 650 $aNanomaterials 650 $aComposto de Carbono 650 $aPeixe de Água Doce 650 $aToxidez 653 $aAlternative methods 653 $aGrafeno 653 $aNanoecotoxicology 653 $aNanohybrids 653 $aNanomateriais 653 $aNanotoxicity 700 1 $aKHAN, L. U. 700 1 $aSILVA, G. H. da 700 1 $aOSPINA, C. A. 700 1 $aALVES, O. L. 700 1 $aCASTRO, V. L. S. S. de 700 1 $aMARTINEZ, D. S. T. 773 $tEcotoxicology and Environmental Safety$gv. 209, article 111776, 2021.
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