Antibacterial activity of graphene oxide/silver nanocomposite synthesized by sustainable process

Página do item simplificado
dc.contributor.authorJACOVONE, R.M.S.pt_BR
dc.contributor.authorSOARES, J.J.S.pt_BR
dc.contributor.authorSOUSA, T.S.pt_BR
dc.contributor.authorRODRIGUES, D.F.pt_BR
dc.contributor.authorSILVA, F.R.O.pt_BR
dc.contributor.authorGARCIA, R.H.L.pt_BR
dc.contributor.authorVICENTE, E.J.pt_BR
dc.contributor.authorSAKATA, S.K.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoWORKSHOP ON ENVIRONMENTAL NANOTECHNOLOGY, 3rdpt_BR
dc.date.accessioned2019-08-27T12:02:02Z
dc.date.available2019-08-27T12:02:02Z
dc.date.eventoOctober 5-8, 2018pt_BR
dc.description.abstractGraphene oxide/silver nanocomposite has excellent antimicrobial properties [1]. The traditional methods of incorporation of metal in graphene oxide usually require toxic reagents or with long periods of reaction and in high temperature [2]. The objective of this study is to develop an innovative and sustainable method of incorporating silver into graphene oxide by electron beam. This methodology does not involve toxic reagents or residues and it is carried out in a short reaction time at room temperature. Dispersed graphene oxide was mixed with silver in the complex form in water- isopropanol solution. The mix was submitted to a dose of radiation varying between 150 and 400 KGy. The nanocomposite GO/Ag characterization was performed by thermogravimetry analysis (TGA), X-ray diffraction (XDR), scanning transmission electron microscope coupled to the energy dispersive X-ray spectrometry (TEM/EDS). The antibacterial activity of GO/Ag was observed against Gram negative, Escherichia coli by plate count method. The viable cells of GO and GO-Ag was determined by plating the inoculum after 4h of exposure to different concentrations of the nanomaterials (10, 50, 100, 200 and 500 μg/mL). The results showed that for 500 μg/mL of GO, inactivation cells were ca of 5,4 %, while for GOAg, the concentration to inactivate all cell were 5 times lower (100 μg/mL). The silver nanoparticles size range from 20 to 50 nm. This work showed that GO/Ag nanocomposites that were widely studied by their antibacterial properties can be produce by ionizing radiation. This is a sustainable method that does not require toxic reagents and does not generate hazardous wastes. The short reaction time of some minutes and the ambient temperature also make the process attractive.pt_BR
dc.format.extent85-85pt_BR
dc.identifier.citationJACOVONE, R.M.S.; SOARES, J.J.S.; SOUSA, T.S.; RODRIGUES, D.F.; SILVA, F.R.O.; GARCIA, R.H.L.; VICENTE, E.J.; SAKATA, S.K. Antibacterial activity of graphene oxide/silver nanocomposite synthesized by sustainable process. In: WORKSHOP ON ENVIRONMENTAL NANOTECHNOLOGY, 3rd, October 5-8, 2018, Sorocaba, SP. <b>Abstract...</b> p. 85-85. Disponível em: http://repositorio.ipen.br/handle/123456789/30124.
dc.identifier.orcid0000-0001-6072-5853pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6072-5853
dc.identifier.orcidhttps://orcid.org/0000-0002-3602-6857
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30124
dc.local.eventoSorocaba, SPpt_BR
dc.rightsopenAccesspt_BR
dc.titleAntibacterial activity of graphene oxide/silver nanocomposite synthesized by sustainable processpt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorJAQUELINE JAMARA SOUZA SOARES
ipen.autorTHAINA SILVA E SOUSA
ipen.autorSOLANGE KAZUMI SAKATA
ipen.autorRAFAEL HENRIQUE LAZZARI GARCIA
ipen.autorFLAVIA RODRIGUES DE OLIVEIRA SILVA
ipen.autorRAYNARA MARIA SILVA JACOVONE
ipen.codigoautor14313
ipen.codigoautor12735
ipen.codigoautor7038
ipen.codigoautor3498
ipen.codigoautor5910
ipen.codigoautor14300
ipen.contributor.ipenauthorJAQUELINE JAMARA SOUZA SOARES
ipen.contributor.ipenauthorTHAINA SILVA E SOUSA
ipen.contributor.ipenauthorSOLANGE KAZUMI SAKATA
ipen.contributor.ipenauthorRAFAEL HENRIQUE LAZZARI GARCIA
ipen.contributor.ipenauthorFLAVIA RODRIGUES DE OLIVEIRA SILVA
ipen.contributor.ipenauthorRAYNARA MARIA SILVA JACOVONE
ipen.date.recebimento19-08
ipen.event.datapadronizada2018pt_BR
ipen.identifier.ipendoc25918pt_BR
ipen.notas.internasAbstractpt_BR
ipen.type.genreResumo
relation.isAuthorOfPublicationcd8afcda-d573-47ce-baa2-ad03bf07b780
relation.isAuthorOfPublication6d33b44b-106f-4a18-ac86-7df0b91142df
relation.isAuthorOfPublicationfb62f288-104d-4352-aed0-a18e0da21a1b
relation.isAuthorOfPublicationf5874229-caf7-49a4-97aa-bae7e7be18e8
relation.isAuthorOfPublicationb1aa6134-5ebc-46f0-ada3-605eaec3a986
relation.isAuthorOfPublicationda20f0e7-9926-4e06-ae80-ccbc18ec0806
relation.isAuthorOfPublication.latestForDiscoveryda20f0e7-9926-4e06-ae80-ccbc18ec0806
sigepi.autor.atividadeSAKATA, S.K.:7038:220:Npt_BR
sigepi.autor.atividadeGARCIA, R.H.L.:3498:730:Npt_BR
sigepi.autor.atividadeSILVA, F.R.O.:5910:820:Npt_BR
sigepi.autor.atividadeSOUSA, T.S.:12735:220:Npt_BR
sigepi.autor.atividadeSOARES, J.J.S.:14313:220:Npt_BR
sigepi.autor.atividadeJACOVONE, R.M.S.:14300:220:Spt_BR
Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
25918.pdf
Tamanho:
125.32 KB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar
Coleções
Eventos - Resumos