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| Registros recuperados : 22 | |
| 2. |  | POLONINI, H. C.; BRANDAO, H. de M.; RAPOSO, N. R. B.; MOUTON, L.; YÉPRÉMIAN, C.; COUTÉ, A.; BRAYNER, R. Ecotoxicological studies of micro- and nanosized barium titanate on aquatic photosynthetic microorganisms. Aquatic Toxicology, v. 154, p. 58-70, 2014.| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | PEREIRA, M. M.; GERN, J. C.; SILVA, S. R. da; YÉPRÉMIAN, C.; COUTÉ, A.; MOUTON, L.; MARCONCINI, J. M.; RAPOSO, N. R. B.; BRAYNER, R. Agregação e carga de superfície de nanofibras de celulose: implicações citotóxicas. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014. p. 537-540. Editores: Maria Alice Martins, Humberto de Mello Brandão, Marlene de Barros Coelho, Daniel Souza Corrêa, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| 4. | | POLONINI, H. C.; BRAYNER, R; RAPOSO, N. R. B.; BRANDÃO, M. A. F.; MOUTON, L.; SIVRY, Y.; CARVALHO, W. A.; GERN, J. C.; BRANDAO, H. de M. Caracterização de micro e nanopartículas de titanato de bário para ensaios de toxicidade. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014 p. 555-558| Biblioteca(s): Embrapa Gado de Leite. |
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| 5. | | PEREIRA, M. M.; MOUTON, L.; YÉPRÉMIAN, C.; COUTE, A.; LADEIRA, L. O.; MATTOSO, L. H. C.; RAPOSO, N. R. B.; BRANDAO, H. de M.; BRAYNER, R. Carbon nanotubes and cellulose nanofibers: ecotoxicological effects. In: ENCONTRO DA SOCIEDADE BRASILEIRA DE PESQUISA EM MATERIAIS, SBPMAT, 12., 2013, Campos do Jordão. Resumos. Campos do Jordão: SBPMat, 2013.| Biblioteca(s): Embrapa Gado de Leite. |
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| 6. | | PEREIRA, M. M.; GERN, J. C.; YÉPRÉMIAN, C.; COUTÉ, A.; MOUTON, L.; MARCONCINI, J. M.; LADEIRA, L. O.; RAPOSO, N. R. B.; BRAYNER, R. Efeitos de nanofibras de celulose e nanotubos de carbono no metabolismo energético da microalga klebsormidium flaccidum. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014. p. 534-537. Editores: Maria Alice Martins, Humberto de Mello Brandão, Marlene de Barros Coelho, Daniel Souza Corrêa, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| 7. | | PEREIRA, M. M.; ROCHA, A. da; YÉPRÉMIAN, C.; COUTÉ, A.; MOUTON, L.; RAPOSO, N. R. B.; MATTOSO, L. H. C.; BRANDÃO, H. de M.; BRAYNER, R. Impacto de nanofibras de celulose na viabilidade celular e na capacidade fotossintética da microalga Chlorella Vulgaris. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 7.; ESCOLA DE NANOTECNOLOGIA, 3., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação, 2013. p. 516-518 Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso. CD-ROM. Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| 8. | | GOUVEIA, A. C. C.; MUNK, M.; OLIVEIRA, V.; FERREIRA, A. P.; BRANDÃO, H. M.; GERN, J. C.; BRAYNER, R.; MARTINS, M. A.; RAPOSO, N. R. B. Preparation, characterization and in vivo biocompatibility studies of cotton cellulose nanofibers. Journal of Nanoscience and Nanotechnology, v. 20, n. 10, 2020. 6532 - 6541| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | POLONINI, H. C.; BRANDAO, H. de M.; RAPOSO, N. R. B.; BRANDÃO, M. A. F.; MOUTON, L.; COUTÉ, A.; YÉPRÉMIAN, C.; SIVRY, Y.; BRAYNER, R. Size-dependent ecotoxicity of barium titanate particles: the case of Chlorella vulgaris green algae. Ecotoxicology, v. 24, p. 938-948, 2015.| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | POLONINI, H. C.; BRANDAO, H. de M.; RAPOSO, N. R. B.; BRANDÃO, M. A. F.; MOUTON, L.; COUTÉ, A.; YEPREMIAN, C.; SIVRY, Y.; BRAYNER, R. Size-dependent toxicity of barium titanate to Chlorella vulgaris. In: INTERNATIONAL CONFERENCE ON SAFE PRODUCTION AND USE OF NANOMATERIALS, 4., 2014, Grenoble. Book of abstracts... Grenoble: [s.n.], 2014.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | MUNK, M.; BRANDÃO, H. M.; NOWAK, S.; MOUTON, L.; GERN, J. C.; GUIMARÃES, A. S.; YÉPRÉMIAN, C.; COUTÉ, A.; RAPOSO, N. R. B.; MARCONCINI, J. M.; BRAYNER, R. Direct and indirect toxic effects of cotton-derived cellulose nanofibers on filamentous green algae. Ecotoxicology and environmental safety, v. 122, p. 399-405, 2015.| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | POLONINI, H. C.; BRAYNER, R; RAPOSO, N. R. B.; MOUTON, L.; YÉPRÉMIAN, C.; COUTÉ, A.; SOUZA, G. N. de; GERN, J. C.; BRANDAO, H. de M. Ecotoxicidade aquática em chlorella vulgaris de micro e nanopartículas de titanato de bário. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014 p. 548-551| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | POLONINI, H. C.; BRAYNER, R; RAPOSO, N. R. B.; YÉPRÉMIAN, C.; COUTÉ, A.; RIBEIRO, J. B.; GERN, J. C.; GUIMARAES, A. S.; BRANDAO, H. de M. Ecotoxicidade aquática de micro e nanopartículas de titanato de bário em Anabaena flos-aquae. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014. p. 545-548| Biblioteca(s): Embrapa Gado de Leite. |
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| 14. | | POLONINI, H. C.; BRAYNER, R; RAPOSO, N. R. B.; YÉPRÉMIAN, C.; COUTÉ, A.; GERN, J. C.; VICENTINI, N. M.; BRANDAO, H. de M. Ecotoxicidade aquática de micro e nanopartículas de titanato de bário em Euglena gracilis. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014 p. 551-555| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | PEREIRA, M. M; MOUTON, L.; YÉPRÉMIAN, C.; COUTÉ, A.; LO, J.; MARCONCINI, J. M.; LADEIRA, L. O.; RAPOSO, N. RB; BRANDÃO, H. M.; BRAYNER, R. Ecotoxicological effects of carbon nanotubes and cellulose nanofibers in Chlorella vulgaris. Journal of Nanobiotechnology, Londres, v. 12, n. 15, p. 1-13, 2014.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| 16. | | PEREIRA, M. M.; MOUTON, L.; YEPREMIAN, C.; COUTE, A.; LO, J.; MARCONCINI, J. M.; LADEIRA, L. O.; RAPOSO, N. R. B.; BRANDAO, H. M.; BRAYNER, R. Interaction of carbon nanotube and cellulose nanofiber with algal cells klebsormidium flaccidum. In: INTERNATIONAL CONFERENCE ON SAFE PRODUCTION AND USE OF NANOMATERIALS - NANOSAFE, 4., 2014, Grenoble. Book of Abstracts... [S. l.: s. n.], 2014. P5-11.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| 17. | | CARVALHO, W. A.; GERN, J. C.; GUIMARAES, A. S.; BRAYNER, R.; GUELBER, G. T.; SALES, E. B.; MACHADO, M. A.; SILVA, S. R.; BRANDAO, H. de M. Toxicity of barium titanate in bovine fibroblasts. In: ENCONTRO DA SOCIEDADE BRASILEIRA DE PESQUISA EM MATERIAIS, SBPMAT, 12., 2013, Campos do Jordão. Resumos. Campos do Jordão: SBPMat, 2013.| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | PEREIRA, M. M.; RAPOSO, N. R. B.; BRAYNER, R.; TEIXEIRA, E. M.; OLIVEIRA, V.; QUINTÃO, C. C. R.; CAMARGO, L. S. A.; MATTOSO, L. H. C.; BRANDAO, H. de M. Cytotoxicity and expression of genes involved in the cellular stress response and apoptosis in mammalian fibroblast exposed to cotton cellulose nannofibers. Nanotechnology, Bristol, v. 24, n. 7, p. 075103, 2013.| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | PEREIRA, M. M.; RAPOSO, N. R. B.; BRAYNER, R.; TEIXEIRA, E. M.; OLIVEIRA, V.; QUINTAO, C. C. R.; CAMARGO, L. S. de A.; MATTOSO, L. H. C.; BRANDAO, H. de M. Cytotoxicity and expression of genes involved in the cellular stress response and apoptosis in mammalian fibroblast exposed to cotton cellulose nanofibers. Nanotechnology, v. 24, n. 7, 075103, 2013.| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | PEREIRA, M. M.; RAPOSO, N. R. B.; BRAYNER, R.; OLIVEIRA, V. de; QUINTÃO, C. C. R.; CAMARGO, L. S. de A.; MATTOSO, L. H. C.; BRANDÃO, H. de M. Nanofibras de celulose modulam a expressão de genes envolvidos na resposta ao estresse celular e apoptose em fibroblastos mamíferos. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 7.; ESCOLA DE NANOTECNOLOGIA, 3., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação, 2013. p. 513-515 Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso. CD-ROM. Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| Registros recuperados : 22 | |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
02/04/2015 |
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Data da última atualização: |
05/02/2024 |
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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: |
POLONINI, H. C.; BRANDAO, H. de M.; RAPOSO, N. R. B.; MOUTON, L.; YÉPRÉMIAN, C.; COUTÉ, A.; BRAYNER, R. |
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Afiliação: |
HUDSON C. POLONINI, UFJF; HUMBERTO DE MELLO BRANDAO, CNPGL; NÁDIA R. B. RAPOSO, UFJF; LUDOVIC MOUTON, Université Paris Diderot, Paris; CLAUDE YÉPRÉMIAN, Muséum National d'Histoire Naturelle, Paris; ALAIN COUTÉ, Muséum National d'Histoire Naturelle, Paris; ROBERTA BRAYNER, Université Paris Diderot, Paris. |
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Título: |
Ecotoxicological studies of micro- and nanosized barium titanate on aquatic photosynthetic microorganisms. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Aquatic Toxicology, v. 154, p. 58-70, 2014. |
|
DOI: |
https://doi.org/10.1016/j.aquatox.2014.05.005 |
|
Idioma: |
Inglês |
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Conteúdo: |
The interaction between live organisms and micro- or nanosized materials has become a current focus in toxicology. As nanosized barium titanate has gained momentum lately in the medical field, the aims of the present work are: (i) to assess BT toxicity and its mechanisms on the aquatic environment, using two photosynthetic organisms (Anabaena flos-aquae, a colonial cyanobacteria, and Euglena gracilis, a flagellated euglenoid); (ii) to study and correlate the physicochemical properties of BT with its toxic profile; (iii) to compare the BT behavior (and Ba2+ released ions) and the toxic profile in synthetic (Bold's Basal, BB, or Mineral Medium, MM) and natural culture media (Seine River Water, SRW); and (iv) to address whether size (micro, BT MP, or nano, BT NP) is an issue in BT particles toxicity. Responses such as growth inhibition, cell viability, superoxide dismutase (SOD) activity, adenosine-5-triphosphate (ATP) content and photosynthetic efficiency were evaluated. The main conclusions are: (i) BT have statistically significant toxic effects on E. gracilis growth and viability even in small concentrations (1 μg mL−1), for both media and since the first 24 h; on the contrary of on A. flos-aquae, to whom the effects were noticeable only for the higher concentrations (after 96 h: ≥75 μg mL−1 for BT NP and =100 μg mL−1 for BT MP, in BB; and ≥75 μg mL−1 for both materials in SRW), in spite of the viability being affected in all concentrations; (ii) the BT behaviors in synthetic and natural culture media were slightly different, being the toxic effects more pronounced when grown in SRW – in this case, a worse physiological state of the organisms in SRW can occur and account for the lower resistance, probably linked to a paucity of nutrients or even a synergistic effect with a contaminant from the river; and (iii) the effects seem to be mediated by induced stress without a direct contact in A. flos-aquae and by direct endocytosis in E. gracilis, but in both organisms the contact with both BT MP and BT NP increased SOD activity and decreased photosynthetic efficiency and intracellular ATP content; and (iv) size does not seem to be an issue in BT particles toxicity since micro- and nano-particles produced significant toxic for the model-organisms. MenosThe interaction between live organisms and micro- or nanosized materials has become a current focus in toxicology. As nanosized barium titanate has gained momentum lately in the medical field, the aims of the present work are: (i) to assess BT toxicity and its mechanisms on the aquatic environment, using two photosynthetic organisms (Anabaena flos-aquae, a colonial cyanobacteria, and Euglena gracilis, a flagellated euglenoid); (ii) to study and correlate the physicochemical properties of BT with its toxic profile; (iii) to compare the BT behavior (and Ba2+ released ions) and the toxic profile in synthetic (Bold's Basal, BB, or Mineral Medium, MM) and natural culture media (Seine River Water, SRW); and (iv) to address whether size (micro, BT MP, or nano, BT NP) is an issue in BT particles toxicity. Responses such as growth inhibition, cell viability, superoxide dismutase (SOD) activity, adenosine-5-triphosphate (ATP) content and photosynthetic efficiency were evaluated. The main conclusions are: (i) BT have statistically significant toxic effects on E. gracilis growth and viability even in small concentrations (1 μg mL−1), for both media and since the first 24 h; on the contrary of on A. flos-aquae, to whom the effects were noticeable only for the higher concentrations (after 96 h: ≥75 μg mL−1 for BT NP and =100 μg mL−1 for BT MP, in BB; and ≥75 μg mL−1 for both materials in SRW), in spite of the viability being affected in all concentrations; (ii) the BT behaviors in synthet... Mostrar Tudo |
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Thesaurus NAL: |
barium titanate; ecotoxicology; nanoparticles. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
LEADER 03038naa a2200241 a 4500
001 2012701
005 2024-02-05
008 2014 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.aquatox.2014.05.005$2DOI
100 1 $aPOLONINI, H. C.
245 $aEcotoxicological studies of micro- and nanosized barium titanate on aquatic photosynthetic microorganisms.$h[electronic resource]
260 $c2014
520 $aThe interaction between live organisms and micro- or nanosized materials has become a current focus in toxicology. As nanosized barium titanate has gained momentum lately in the medical field, the aims of the present work are: (i) to assess BT toxicity and its mechanisms on the aquatic environment, using two photosynthetic organisms (Anabaena flos-aquae, a colonial cyanobacteria, and Euglena gracilis, a flagellated euglenoid); (ii) to study and correlate the physicochemical properties of BT with its toxic profile; (iii) to compare the BT behavior (and Ba2+ released ions) and the toxic profile in synthetic (Bold's Basal, BB, or Mineral Medium, MM) and natural culture media (Seine River Water, SRW); and (iv) to address whether size (micro, BT MP, or nano, BT NP) is an issue in BT particles toxicity. Responses such as growth inhibition, cell viability, superoxide dismutase (SOD) activity, adenosine-5-triphosphate (ATP) content and photosynthetic efficiency were evaluated. The main conclusions are: (i) BT have statistically significant toxic effects on E. gracilis growth and viability even in small concentrations (1 μg mL−1), for both media and since the first 24 h; on the contrary of on A. flos-aquae, to whom the effects were noticeable only for the higher concentrations (after 96 h: ≥75 μg mL−1 for BT NP and =100 μg mL−1 for BT MP, in BB; and ≥75 μg mL−1 for both materials in SRW), in spite of the viability being affected in all concentrations; (ii) the BT behaviors in synthetic and natural culture media were slightly different, being the toxic effects more pronounced when grown in SRW – in this case, a worse physiological state of the organisms in SRW can occur and account for the lower resistance, probably linked to a paucity of nutrients or even a synergistic effect with a contaminant from the river; and (iii) the effects seem to be mediated by induced stress without a direct contact in A. flos-aquae and by direct endocytosis in E. gracilis, but in both organisms the contact with both BT MP and BT NP increased SOD activity and decreased photosynthetic efficiency and intracellular ATP content; and (iv) size does not seem to be an issue in BT particles toxicity since micro- and nano-particles produced significant toxic for the model-organisms.
650 $abarium titanate
650 $aecotoxicology
650 $ananoparticles
700 1 $aBRANDAO, H. de M.
700 1 $aRAPOSO, N. R. B.
700 1 $aMOUTON, L.
700 1 $aYÉPRÉMIAN, C.
700 1 $aCOUTÉ, A.
700 1 $aBRAYNER, R.
773 $tAquatic Toxicology$gv. 154, p. 58-70, 2014.
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