Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/337000
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampDuran Caballero, Nelson Eduardo-
dc.typeArtigopt_BR
dc.titleSynthesis of silver nanoparticles using extract of weeds and optimized by response surface methodology to the control of soil pathogenic bacteria ralstonia solanacearumpt_BR
dc.contributor.authorTortella, Gonzalo-
dc.contributor.authorNavas, Macarena-
dc.contributor.authorParada, Maribel-
dc.contributor.authorDuran, Nelson-
dc.contributor.authorSeabra, Amedea Barozzi-
dc.contributor.authorHoffmann, Nicolas-
dc.contributor.authorRubilar, Olga-
dc.subjectNanopartículas de pratapt_BR
dc.subject.otherlanguageSilver nanoparticlespt_BR
dc.description.abstractExtracts of leaf from five native Chilean weeds were evaluated in the biosynthesis of silver nanoparticles. The synthesis was monitored by UV-Vis spectra at 420 nm by typical formation of surface plasmon resonance. Moreover, the extract with major potential for the formation of nanoparticles was used to optimize the synthesis processes by response surface methodology, to obtain nanoparticles of small sizes by combination of three parameters (AgNO3 and leaf extract concentrations and pH). Characterization of AgNPs was made by TEM, XRD, and DLS. The inhibitory activity was evaluated by disk diffusion method and minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined. Only two out of five extracts evaluated (Hypericum perforatum and Malva nicaensis) showed capacity to biosynthesize AgNPs. pH 10, AgNO3 (1 mM), and leaf extract at 5% vv(-1) were the optimal conditions to synthesize small AgNPs (<40 nm). Inhibition zone from diffusion disk assay, MIC (30 mu g mL(-1)) and MBC (40 mu g mL(-1)), revealed a high antibacterial activity of AgNPs against Ralstonia solanacearum. Based on the results, the AgNPs biosynthesized from the leaf extract of H. perforatum is a promising antibacterial agent for its use in the control of R. solanacearumpt_BR
dc.relation.ispartofJournal of soil science and plant nutritionpt_BR
dc.publisher.cityValdiviapt_BR
dc.publisher.countryChilept_BR
dc.publisherSpringerpt_BR
dc.date.issued2019-
dc.date.monthofcirculationMar.pt_BR
dc.language.isoengpt_BR
dc.description.volume19pt_BR
dc.description.issuenumber1pt_BR
dc.description.firstpage148pt_BR
dc.description.lastpage156pt_BR
dc.rightsFechadopt_BR
dc.sourceWOSpt_BR
dc.identifier.eissn0718-9516pt_BR
dc.identifier.doi10.1007/s42729-019-00021-2pt_BR
dc.identifier.urlhttps://link.springer.com/article/10.1007%2Fs42729-019-00021-2pt_BR
dc.date.available2020-03-20T13:52:58Z-
dc.date.accessioned2020-03-20T13:52:58Z-
dc.description.provenanceSubmitted by Sanches Olivia (olivias@unicamp.br) on 2020-03-20T13:52:58Z No. of bitstreams: 0en
dc.description.provenanceMade available in DSpace on 2020-03-20T13:52:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/337000-
dc.contributor.departmentDepartamento de Química Orgânicapt_BR
dc.contributor.unidadeInstituto de Químicapt_BR
dc.subject.keywordGreen synthesispt_BR
dc.subject.keywordRalstonia solanacearumpt_BR
dc.subject.keywordWeed extractspt_BR
dc.identifier.source000471078200015pt_BR
dc.creator.orcid0000-0001-8372-5143pt_BR
dc.type.formArtigo de Pesquisapt_BR
dc.description.sponsorNoteThis work was financed by MEC-CONICYT 80170096 and 80170089 and partially financed by DI18-2024 and FONDECYT 1161713pt_BR
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