Publicação
Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver
| Resumo: | Different loadings of silver exchanged on bimetallic Zn/Ag-NaY zeolite materials were studied for antimicrobial properties against four reference microorganisms. The sensitive indicator strains used were two bacteria (Escherichia coli and Bacillus subtilis) and two yeast species (Saccharomyces cerevisiae and Candida albicans). The bimetallic materials were compared with the monometallic materials prepared with the same concentrations of silver. A synergistic effect between the two metals, zinc and silver, was evidenced on the antimicrobial activity of the materials. All mono and bimetallic materials showed strong efficacy against bacteria and yeasts, although the later overall displayed lower MIC values. The results of X-ray photoelectron spectroscopy (XPS) confirm the presence of silver and zinc as ions, not homogeneously distributed throughout the zeolite framework, which implies that the metal ions are located in different sites of the faujasite structure. |
|---|---|
| Autores principais: | Ferreira, Liliana |
| Outros Autores: | Guedes, Joana F.; Almeida Aguiar, Cristina; Fonseca, A. M.; Neves, Isabel C. |
| Assunto: | Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag Ciências Naturais::Ciências Químicas |
| Ano: | 2016 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867437959337213952 |
|---|---|
| author | Ferreira, Liliana |
| author2 | Guedes, Joana F. Almeida Aguiar, Cristina Fonseca, A. M. Neves, Isabel C. |
| author2_role | author author author author |
| author_facet | Ferreira, Liliana Guedes, Joana F. Almeida Aguiar, Cristina Fonseca, A. M. Neves, Isabel C. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Ferreira, Liliana\"},{\"Person.name\":\"Guedes, Joana F.\"},{\"Person.name\":\"Almeida Aguiar, Cristina\"},{\"Person.name\":\"Fonseca, A. M.\"},{\"Person.name\":\"Neves, Isabel C.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Ferreira, Liliana Guedes, Joana F. Almeida Aguiar, Cristina Fonseca, A. M. Neves, Isabel C. |
| datacite.date.Accepted.fl_str_mv | 2016-06-01T00:00:00Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag Ciências Naturais::Ciências Químicas |
| datacite.titles.title.fl_str_mv | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Ferreira, Liliana Guedes, Joana F. Almeida Aguiar, Cristina Fonseca, A. M. Neves, Isabel C. |
| dc.date.Accepted.fl_str_mv | 2016-06-01T00:00:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/48082 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier B.V. |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag Ciências Naturais::Ciências Químicas |
| dc.title.fl_str_mv | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Different loadings of silver exchanged on bimetallic Zn/Ag-NaY zeolite materials were studied for antimicrobial properties against four reference microorganisms. The sensitive indicator strains used were two bacteria (Escherichia coli and Bacillus subtilis) and two yeast species (Saccharomyces cerevisiae and Candida albicans). The bimetallic materials were compared with the monometallic materials prepared with the same concentrations of silver. A synergistic effect between the two metals, zinc and silver, was evidenced on the antimicrobial activity of the materials. All mono and bimetallic materials showed strong efficacy against bacteria and yeasts, although the later overall displayed lower MIC values. The results of X-ray photoelectron spectroscopy (XPS) confirm the presence of silver and zinc as ions, not homogeneously distributed throughout the zeolite framework, which implies that the metal ions are located in different sites of the faujasite structure. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/5b5e1f15-29eb-4ccd-a81b-83cf11748f8c/download |
| id | rum_dc4ce1a1ffe57f8ae0f5964ca77dfd03 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/48082 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/48082 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Ferreira, Liliana Guedes, Joana F. Almeida Aguiar, Cristina Fonseca, A. M. Neves, Isabel C. |
| publishDate | 2016 |
| publisher.none.fl_str_mv | Elsevier B.V. |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engElsevier B.V.porDifferent loadings of silver exchanged on bimetallic Zn/Ag-NaY zeolite materials were studied for antimicrobial properties against four reference microorganisms. The sensitive indicator strains used were two bacteria (Escherichia coli and Bacillus subtilis) and two yeast species (Saccharomyces cerevisiae and Candida albicans). The bimetallic materials were compared with the monometallic materials prepared with the same concentrations of silver. A synergistic effect between the two metals, zinc and silver, was evidenced on the antimicrobial activity of the materials. All mono and bimetallic materials showed strong efficacy against bacteria and yeasts, although the later overall displayed lower MIC values. The results of X-ray photoelectron spectroscopy (XPS) confirm the presence of silver and zinc as ions, not homogeneously distributed throughout the zeolite framework, which implies that the metal ions are located in different sites of the faujasite structure.application/pdfporMicrobial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silverFerreira, LilianaGuedes, Joana F.Almeida Aguiar, CristinaFonseca, A. M.Neves, Isabel C.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptPMID26945166ISSNIsPartOf0927-7765DOIIsPartOf10.1016/j.colsurfb.2016.02.0422016-06-012017-12-07T12:12:37Z2016-06-01T00:00:00ZHandlehttps://hdl.handle.net/1822/48082http://purl.org/coar/access_right/c_16ecrestricted accessAg contentAntimicrobial activityIon-exchangeNaY zeoliteZn/Aghttp://www.oecd.org/science/inno/38235147.pdfFields of Science and Technology (FOS)Ciências Naturais::Ciências Químicas1368833 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorium.uminho.pt/bitstreams/5b5e1f15-29eb-4ccd-a81b-83cf11748f8c/download |
| spellingShingle | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver Ferreira, Liliana Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag Ciências Naturais::Ciências Químicas |
| status | SINGLETON |
| subject.fl_str_mv | Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag |
| subject.other.fl_str_mv | Ciências Naturais::Ciências Químicas |
| title | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| title_full | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| title_fullStr | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| title_full_unstemmed | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| title_short | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| title_sort | Microbial growth inhibition caused by Zn/Ag-Y zeolite materials with different amounts of silver |
| topic | Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag Ciências Naturais::Ciências Químicas |
| topic_facet | Ag content Antimicrobial activity Ion-exchange NaY zeolite Zn/Ag Ciências Naturais::Ciências Químicas |
| url | https://hdl.handle.net/1822/48082 |
| visible | 1 |