| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
28/12/2012 |
|
Data da última atualização: |
20/09/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ALMEIDA, J. M. P.; BONI, L. de; AVANSI, W.; RIBEIRO, C.; LONGO, E.; HERNANDES, A. C.; MENDONÇA, C. R. |
|
Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
|
Título: |
Generation of copper nanoparticles induced by fs-laser irradiation in borosilicate glass |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
Optics Express, Washington, v. 20, n. 14, p. 15106-15113, 2012. |
|
DOI: |
10.1364/OE.20.015106 |
|
Idioma: |
Inglês |
|
Palavras-Chave: |
Glass and other amorphous materials; Microstructure fabrication; Optical nonlinearities of condensed matter. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183318/1/Generation-of-copper-nanoparticles-induced-by-fs-laser-irradiation-in-borosilicate-glass.pdf
|
|
Marc: |
LEADER 00756naa a2200229 a 4500
001 1943702
005 2018-09-20
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1364/OE.20.015106$2DOI
100 1 $aALMEIDA, J. M. P.
245 $aGeneration of copper nanoparticles induced by fs-laser irradiation in borosilicate glass$h[electronic resource]
260 $c2012
653 $aGlass and other amorphous materials
653 $aMicrostructure fabrication
653 $aOptical nonlinearities of condensed matter
700 1 $aBONI, L. de
700 1 $aAVANSI, W.
700 1 $aRIBEIRO, C.
700 1 $aLONGO, E.
700 1 $aHERNANDES, A. C.
700 1 $aMENDONÇA, C. R.
773 $tOptics Express, Washington$gv. 20, n. 14, p. 15106-15113, 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
21/05/2021 |
|
Data da última atualização: |
02/06/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
MATOS, M.; CLARO, F. C.; LIMA, T. A. M.; AVELINO, F.; HANSEL, F. A.; MACIEL, G. M.; LOMONACO, D.; MAGALHAES, W. L. E. |
|
Afiliação: |
MAILSON MATOS, UNIVERSIDADE FEDERAL DO PARANA; FRANCINE C. CLARO, UNIVERSIDADE FEDERAL DO PARANA; TIELIDY A. M. LIMA, ATHLONE INSTITUTE OF TECHNOLOGY, IRELAND; FRANCISCO AVELINO, INSTITUTO FEDERAL DE EDUCAÇÃO, CIÊNCIA E TECNOLOGIA DO CEARÁ; FABRICIO AUGUSTO HANSEL, CNPF; GISELLE M. MACIEL, UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ; DIEGO LOMONACO, UNIVERSIDADE FEDERAL DO CEARA; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF. |
|
Título: |
Acetone: water fractionation of pyrolytic lignin improves its antioxidant and antibacterial activity. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Journal of Analytical and Applied Pyrolysis, v. 156, 105175, 2021. |
|
DOI: |
https://doi.org/10.1016/j.jaap.2021.105175 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Pyrolytic lignin is the water-insoluble fraction of the bio-oil from rapid pyrolysis. The separation of pyrolytic lignin can improve the extraction of monophenols. Studies reveal the efficacy of phenolic aromatic compounds derived from lignin as antioxidants and as antimicrobials. In this study, we used aqueous acetone solutions to improve the fractionation of eucalypt pyrolytic lignin. Experiments to obtain the pyrolytic lignin were carried out based on a central composite factorial design, and the characterizations were performed by GPC, NMR, FTIR, TGA, GC?MS, antioxidant assays, and antibacterial activity analysis. The most soluble fraction resulted in a more homogeneous fraction, concentrating phenolic, carboxylic, and lower molecular weight compounds. The antioxidant activity was mainly attributed to phenolic compounds with methoxy substituents. Pyrolytic lignin fractions also showed antimicrobial action against Staphylococcus aureus and Escherichia coli. |
|
Palavras-Chave: |
Antioxidant; Phenolic compound. |
|
Thesagro: |
Acetona; Lignina. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 01771naa a2200265 a 4500
001 2131936
005 2021-06-02
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jaap.2021.105175$2DOI
100 1 $aMATOS, M.
245 $aAcetone$bwater fractionation of pyrolytic lignin improves its antioxidant and antibacterial activity.$h[electronic resource]
260 $c2021
520 $aPyrolytic lignin is the water-insoluble fraction of the bio-oil from rapid pyrolysis. The separation of pyrolytic lignin can improve the extraction of monophenols. Studies reveal the efficacy of phenolic aromatic compounds derived from lignin as antioxidants and as antimicrobials. In this study, we used aqueous acetone solutions to improve the fractionation of eucalypt pyrolytic lignin. Experiments to obtain the pyrolytic lignin were carried out based on a central composite factorial design, and the characterizations were performed by GPC, NMR, FTIR, TGA, GC?MS, antioxidant assays, and antibacterial activity analysis. The most soluble fraction resulted in a more homogeneous fraction, concentrating phenolic, carboxylic, and lower molecular weight compounds. The antioxidant activity was mainly attributed to phenolic compounds with methoxy substituents. Pyrolytic lignin fractions also showed antimicrobial action against Staphylococcus aureus and Escherichia coli.
650 $aAcetona
650 $aLignina
653 $aAntioxidant
653 $aPhenolic compound
700 1 $aCLARO, F. C.
700 1 $aLIMA, T. A. M.
700 1 $aAVELINO, F.
700 1 $aHANSEL, F. A.
700 1 $aMACIEL, G. M.
700 1 $aLOMONACO, D.
700 1 $aMAGALHAES, W. L. E.
773 $tJournal of Analytical and Applied Pyrolysis$gv. 156, 105175, 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
