Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/48062
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Campo DC | Valor | Idioma |
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dc.contributor.author | Ferreira, Liliana | por |
dc.contributor.author | Almeida Aguiar, Cristina | por |
dc.contributor.author | Parpot, Pier | por |
dc.contributor.author | Fonseca, A. M. | por |
dc.contributor.author | Neves, Isabel C. | por |
dc.date.accessioned | 2017-12-06T17:17:28Z | - |
dc.date.issued | 2015-01-01 | - |
dc.identifier.issn | 2046-2069 | por |
dc.identifier.uri | https://hdl.handle.net/1822/48062 | - |
dc.description.abstract | The antimicrobial behavior of different pairs of bimetallic materials based on NaY zeolite was assessed in order to optimize the best metal pair composition. The materials were prepared by an ion-exchange method using zeolite Y in sodium form (NaY, 700 nm) with different metals (copper, zinc and silver). The resulting materials were characterized by Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), cyclic voltammetry and chemical analysis, which indicated that the bimetallic metal species were effectively ion exchanged in NaY, with no modification of the zeolite structure. The antimicrobial potential of the materials was evaluated in vitro using the bacteria Escherichia coli and the yeast Saccharomyces cerevisiae as indicator strains. All materials showed good antimicrobial properties with the pair Zn/Ag being the most active among the bimetallic materials tested. The sequence of antimicrobial activities was as follows: Zn < inf > 0.05 < /inf > Ag-Y > AgZn < inf > 0.05 < /inf > -Y > AgCu-Y = CuAg-Y > Zn < inf > 0.05 < /inf > Cu-Y = CuZn < inf > 0.05 < /inf > -Y = NaY. | por |
dc.description.sponsorship | The authors are grateful to FCT (Portuguese Foundation for Science and Technology) and FEDER (European Fund for Regional Development)-COMPETE-QREN-EU for financial support to the Research Centers CQ/UM - PEst-C/QUI/UI0686/2013 (F-COMP-01-0124-FEDER-037302) and project "n-STeP - Nanostructured systems for Tail", a NORTE-07-0124-FEDER-000039 supported by Programa Operacional Regional do Norte (ON.2) - and CITAB/UM (project UID/AGR/04033/2013). | por |
dc.language.iso | eng | por |
dc.publisher | Royal Society of Chemistry | por |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132953/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147341/PT | por |
dc.rights | restrictedAccess | por |
dc.title | Preparation and assessment of antimicrobial properties of bimetallic materials based on NaY zeolite | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
oaire.citationStartPage | 37188 | por |
oaire.citationEndPage | 37195 | por |
oaire.citationIssue | 47 | por |
oaire.citationVolume | 5 | por |
dc.date.updated | 2017-12-06T14:20:57Z | - |
dc.identifier.doi | 10.1039/c5ra04960a | por |
dc.subject.fos | Ciências Naturais::Ciências Químicas | por |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
dc.subject.wos | Science & Technology | por |
sdum.export.identifier | 1134 | - |
sdum.journal | RSC Advances | por |
Aparece nas coleções: | CDQuim - Artigos (Papers) DBio - Artigos/Papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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RSC Adv., 2015, 5, 37188–37195.pdf Acesso restrito! | 822,04 kB | Adobe PDF | Ver/Abrir |