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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
02/05/2024 |
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Data da última atualização: |
10/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LIMA, A. K. O.; SILVEIRA, A. P.; SILVA, R. C.; MACHADO, Y. A. A.; ARAÚJO, A. R. de; ARAUJO, S. S. de M.; VIEIRA, I. R. S.; ARAÚJO, J. L.; SANTOS, L. C. dos; RODRIGUES, K. A. da F.; SILVA, S. W. da; RIBEIRO, J. A. de A.; RODRIGUES, C. M.; GARCIA, M. P. |
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Afiliação: |
ALAN KELBIS OLIVEIRA LIMA; ARIANE PANDOLFO SILVEIRA; RENATA CARVALHO SILVA; YASMIN ALVES AIRES MACHADO; ALYNE RODRIGUES DE ARAÚJO; SANSARA SANNY DE MENDONÇA ARAUJO; ITALO RENNAN SOUSA VIEIRA; JOABE LIMA ARAÚJO; LUCAS CARVALHO DOS SANTOS; KLINGER ANTÔNIO DA FRANÇA RODRIGUES; SEBASTIÃO WILLIAM DA SILVA; JOSE ANTONIO DE AQUINO RIBEIRO, CNPAE; CLENILSON MARTINS RODRIGUES, CNPAE; MÔNICA PEREIRA GARCIA. |
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Título: |
Phytosynthesis of silver nanoparticles using guarana (Paullinia cupana Kunth) leaf extract employing different routes: characterization and investigation of in vitro bioactivities |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Biomass Conversion and Biorefinery, v. 14, n. 10, 2024. |
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DOI: |
https://doi.org/10.1007/s13399-023-05250-1 |
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Idioma: |
Inglês |
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Conteúdo: |
The optimization techniques are fundamental to guarantee the stability of any preparation process and the quality of the nanostructures synthesized under ideal circumstances. In this sense, this study evaluates the potential of guarana leaf extract (Paullinia cupana Kunth—Sapindaceae) for the green synthesis of silver nanoparticles (AgNPs) using routes that employ different equipment/energy sources (autoclave, LED, microwave, sunlight, ultrasound, and water bath). The aqueous extract was characterized by high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLCHRMS/ MS). The AgNPs were analyzed by UV/Vis spectroscopy, dynamic light scattering (DLS), zeta potential (ZP), Fourier transform infrared (FTIR), transmission electron microscopy (TEM) and their antibacterial, leishmanicidal and cytotoxic effects were evaluated in vitro. The results show the presence of phenolic acids, alkaloids, and flavonoids in the leaf extract, which was supported by the identification of their functional groups in the FTIR spectra. The AgNPs showed maximum absorption between 420 and 440 nm (UV/Vis), with a diameter below 100 nm (DLS) and 60 nm (TEM), spherical morphology and a surface charge above − 30 mV (ZP). The antibacterial test showed pronounced inhibition in the growth of Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus bacteria. The leishmanicidal activity of AgNPs on Leishmania (Leishmania) amazonensis was more pronounced than that of the drug miltefosine while low cytotoxicity was reported on RAW 264.7 macrophages. With this, this study reports the possibility of using alternative routes for the sustainable synthesis of AgNPs from Paullinia cupana extract with considerable applications against pathogenic bacteria and opportunistic parasites. MenosThe optimization techniques are fundamental to guarantee the stability of any preparation process and the quality of the nanostructures synthesized under ideal circumstances. In this sense, this study evaluates the potential of guarana leaf extract (Paullinia cupana Kunth—Sapindaceae) for the green synthesis of silver nanoparticles (AgNPs) using routes that employ different equipment/energy sources (autoclave, LED, microwave, sunlight, ultrasound, and water bath). The aqueous extract was characterized by high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLCHRMS/ MS). The AgNPs were analyzed by UV/Vis spectroscopy, dynamic light scattering (DLS), zeta potential (ZP), Fourier transform infrared (FTIR), transmission electron microscopy (TEM) and their antibacterial, leishmanicidal and cytotoxic effects were evaluated in vitro. The results show the presence of phenolic acids, alkaloids, and flavonoids in the leaf extract, which was supported by the identification of their functional groups in the FTIR spectra. The AgNPs showed maximum absorption between 420 and 440 nm (UV/Vis), with a diameter below 100 nm (DLS) and 60 nm (TEM), spherical morphology and a surface charge above − 30 mV (ZP). The antibacterial test showed pronounced inhibition in the growth of Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus bacteria. The leishmanicidal activity of AgNPs on Leishmania (Leishmania) amazonensis was more pronounced than that of ... Mostrar Tudo |
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Thesaurus Nal: |
Antibacterial plants; Antileishmanials; Nanoparticles. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02896naa a2200325 a 4500
001 2164046
005 2024-05-10
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s13399-023-05250-1$2DOI
100 1 $aLIMA, A. K. O.
245 $aPhytosynthesis of silver nanoparticles using guarana (Paullinia cupana Kunth) leaf extract employing different routes$bcharacterization and investigation of in vitro bioactivities$h[electronic resource]
260 $c2024
520 $aThe optimization techniques are fundamental to guarantee the stability of any preparation process and the quality of the nanostructures synthesized under ideal circumstances. In this sense, this study evaluates the potential of guarana leaf extract (Paullinia cupana Kunth—Sapindaceae) for the green synthesis of silver nanoparticles (AgNPs) using routes that employ different equipment/energy sources (autoclave, LED, microwave, sunlight, ultrasound, and water bath). The aqueous extract was characterized by high-performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLCHRMS/ MS). The AgNPs were analyzed by UV/Vis spectroscopy, dynamic light scattering (DLS), zeta potential (ZP), Fourier transform infrared (FTIR), transmission electron microscopy (TEM) and their antibacterial, leishmanicidal and cytotoxic effects were evaluated in vitro. The results show the presence of phenolic acids, alkaloids, and flavonoids in the leaf extract, which was supported by the identification of their functional groups in the FTIR spectra. The AgNPs showed maximum absorption between 420 and 440 nm (UV/Vis), with a diameter below 100 nm (DLS) and 60 nm (TEM), spherical morphology and a surface charge above − 30 mV (ZP). The antibacterial test showed pronounced inhibition in the growth of Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus bacteria. The leishmanicidal activity of AgNPs on Leishmania (Leishmania) amazonensis was more pronounced than that of the drug miltefosine while low cytotoxicity was reported on RAW 264.7 macrophages. With this, this study reports the possibility of using alternative routes for the sustainable synthesis of AgNPs from Paullinia cupana extract with considerable applications against pathogenic bacteria and opportunistic parasites.
650 $aAntibacterial plants
650 $aAntileishmanials
650 $aNanoparticles
700 1 $aSILVEIRA, A. P.
700 1 $aSILVA, R. C.
700 1 $aMACHADO, Y. A. A.
700 1 $aARAÚJO, A. R. de
700 1 $aARAUJO, S. S. de M.
700 1 $aVIEIRA, I. R. S.
700 1 $aARAÚJO, J. L.
700 1 $aSANTOS, L. C. dos
700 1 $aRODRIGUES, K. A. da F.
700 1 $aSILVA, S. W. da
700 1 $aRIBEIRO, J. A. de A.
700 1 $aRODRIGUES, C. M.
700 1 $aGARCIA, M. P.
773 $tBiomass Conversion and Biorefinery$gv. 14, n. 10, 2024.
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Registro original: |
Embrapa Agroenergia (CNPAE) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
05/11/1999 |
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Data da última atualização: |
05/09/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, N. L. da; ARAÚJO FILHO, J. A. de; SOUSA, F. B. de; CAVALCANTE, A. C. R.; MOITA, A. K. F. |
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Afiliação: |
NILZEMARY LIMA DA SILVA, CNPC; JOÃO AMBRÓSIO DE ARAÚJO FILHO, CNPC; FRANCISCO BENI DE SOUSA, CNPC. |
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Título: |
Efeitos da época de corte do bamburral (Hyptis suaveolens Poit) sobre a produção de fitomassa do estrato herbáceo da Caatinga raleada. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 36., 1999, Porto Alegre. Anais dos simpósios. Porto Alegre: Sociedade Brasileira de Zootecnia, 1999. 1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
A pesquisa foi conduzida em Sobral, Ceara, objetivando determinar a producao e composicao da fitomassa do estrato herbaceo sob o controle do bamburral em diferentes fenofases: vegetativa(A); vegetativa plena(B); inicio da floracao(C), inicio de frutificacao(D) e testemunha(T-sem corte). Utilizou-se um delineamento em blocos ao acaso com quatro repeticoes. A producao total de fitomassa seca do estrato herbaceo nao foi afetada(P>0,05), mas a sua composicao floristica o foi(P<0,05). A maior producao de gramineas e outras ervas foi obtida no tratamento(A), enquanto a do bamburral foi observada nos tratamentos(D) e (T). |
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Palavras-Chave: |
Fenofase; Phenophase; Raleamento; Thinning. |
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Thesagro: |
Bamburral; Caatinga; Composição botânica; Hyptis Suaveolens; Raleio. |
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Thesaurus NAL: |
Biomass; Botanical composition; Brazil; Semiarid zones. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01674nam a2200313 a 4500
001 1515219
005 2023-09-05
008 1999 bl uuuu u00u1 u #d
100 1 $aSILVA, N. L. da
245 $aEfeitos da época de corte do bamburral (Hyptis suaveolens Poit) sobre a produção de fitomassa do estrato herbáceo da Caatinga raleada.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 36., 1999, Porto Alegre. Anais dos simpósios. Porto Alegre: Sociedade Brasileira de Zootecnia, 1999. 1 CD-ROM.$c1999
520 $aA pesquisa foi conduzida em Sobral, Ceara, objetivando determinar a producao e composicao da fitomassa do estrato herbaceo sob o controle do bamburral em diferentes fenofases: vegetativa(A); vegetativa plena(B); inicio da floracao(C), inicio de frutificacao(D) e testemunha(T-sem corte). Utilizou-se um delineamento em blocos ao acaso com quatro repeticoes. A producao total de fitomassa seca do estrato herbaceo nao foi afetada(P>0,05), mas a sua composicao floristica o foi(P<0,05). A maior producao de gramineas e outras ervas foi obtida no tratamento(A), enquanto a do bamburral foi observada nos tratamentos(D) e (T).
650 $aBiomass
650 $aBotanical composition
650 $aBrazil
650 $aSemiarid zones
650 $aBamburral
650 $aCaatinga
650 $aComposição botânica
650 $aHyptis Suaveolens
650 $aRaleio
653 $aFenofase
653 $aPhenophase
653 $aRaleamento
653 $aThinning
700 1 $aARAÚJO FILHO, J. A. de
700 1 $aSOUSA, F. B. de
700 1 $aCAVALCANTE, A. C. R.
700 1 $aMOITA, A. K. F.
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Embrapa Caprinos e Ovinos (CNPC) |
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