Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2011 |
| Outros Autores: | , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFBA |
| Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/5522 |
Resumo: | Acesso restrito: Texto completo. p. 65-70. |
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Alfenas, C. dos S.Ricci, G. P.Faria, E. H. deSaltarelli, M.Lima, O. J. deRocha, Z. N. daNassar, E. J.Calefi, Paulo SergioMontanari, Lilian B.Martins, Carlos H. GomesCiuffi, Katia J.Alfenas, C. dos S.Ricci, G. P.Faria, E. H. deSaltarelli, M.Lima, O. J. deRocha, Z. N. daNassar, E. J.Calefi, Paulo SergioMontanari, Lilian B.Martins, Carlos H. GomesCiuffi, Katia J.2012-03-07T18:55:02Z20111381-1169http://www.repositorio.ufba.br/ri/handle/ri/5522v. 338, n. 1-2Acesso restrito: Texto completo. p. 65-70.Brazil has been the largest producer of niobium (Nb2O5) since 1980, and this material is usually applied to reduce corrosion in alloys. In addition, it has recently been evaluated for use in other technological areas, such as adsorption and catalysis. This paper presents the results of the antibacterial activity of Nb–aluminum oxide, designated MAC–Nb5+, prepared by the non-hydrolytic sol–gel route. The resulting material MAC–Nb5+ was characterized by several techniques including X-ray diffraction, thermal analysis,infrared absorption spectroscopy, differential pulse voltammetry, surface area measurements, and scanning electron microscopy. The displacements of the bands due to Al–O and Al–OH in the infrared spectra of MAC–Nb5+ in relation to alumina confirmed the coordination of Nb5+ ions to the surface and inside the pores of the alumina matrix. The powder XRD of MAC–Nb5+ suggested that the material is amorphous and that the niobium oxide is well-dispersed over the alumina matrix. Differential pulse voltammetry revealed the redox process that involves Nb–O–Al. Results from the biological assays for determination of the antibacterial activity of MAC–Nb5+ were obtained by the following methodologies: determination of the minimum inhibitory concentration and antibacterial activity assay by agar diffusion. It was observed that MAC–Nb5+ displays antibacterial activity against all the tested bacteria.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-03-07T18:55:02Z No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S1381116911000409-main.pdf: 657236 bytes, checksum: e44dff3d0e5afc43a2f9a182c5eafefc (MD5)Made available in DSpace on 2012-03-07T18:55:02Z (GMT). No. of bitstreams: 1 __pdn.sciencedirect.com_....0-S1381116911000409-main.pdf: 657236 bytes, checksum: e44dff3d0e5afc43a2f9a182c5eafefc (MD5) Previous issue date: 2011DOI: 10.1016/j.molcata.2011.01.026reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBASol–gelNon-hydrolyticNb–aluminum oxideAntibacterial activityAntibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel routeJournal of Molecular Catalysis A-Chemicalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL__pdn.sciencedirect.com_....0-S1381116911000409-main.pdf__pdn.sciencedirect.com_....0-S1381116911000409-main.pdfapplication/pdf657236https://repositorio.ufba.br/bitstream/ri/5522/1/__pdn.sciencedirect.com_....0-S1381116911000409-main.pdfe44dff3d0e5afc43a2f9a182c5eafefcMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5522/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT__pdn.sciencedirect.com_....0-S1381116911000409-main.pdf.txt__pdn.sciencedirect.com_....0-S1381116911000409-main.pdf.txtExtracted texttext/plain31003https://repositorio.ufba.br/bitstream/ri/5522/3/__pdn.sciencedirect.com_....0-S1381116911000409-main.pdf.txte0967f164375be5acdc83c04916dc3e1MD53ri/55222022-08-08 13:17:25.82oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:25Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
| dc.title.pt_BR.fl_str_mv |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| dc.title.alternative.pt_BR.fl_str_mv |
Journal of Molecular Catalysis A-Chemical |
| title |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| spellingShingle |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route Alfenas, C. dos S. Sol–gel Non-hydrolytic Nb–aluminum oxide Antibacterial activity |
| title_short |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| title_full |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| title_fullStr |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| title_full_unstemmed |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| title_sort |
Antibacterial activity of Nb–aluminum oxide prepared by the non-hydrolytic sol–gel route |
| author |
Alfenas, C. dos S. |
| author_facet |
Alfenas, C. dos S. Ricci, G. P. Faria, E. H. de Saltarelli, M. Lima, O. J. de Rocha, Z. N. da Nassar, E. J. Calefi, Paulo Sergio Montanari, Lilian B. Martins, Carlos H. Gomes Ciuffi, Katia J. |
| author_role |
author |
| author2 |
Ricci, G. P. Faria, E. H. de Saltarelli, M. Lima, O. J. de Rocha, Z. N. da Nassar, E. J. Calefi, Paulo Sergio Montanari, Lilian B. Martins, Carlos H. Gomes Ciuffi, Katia J. |
| author2_role |
author author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Alfenas, C. dos S. Ricci, G. P. Faria, E. H. de Saltarelli, M. Lima, O. J. de Rocha, Z. N. da Nassar, E. J. Calefi, Paulo Sergio Montanari, Lilian B. Martins, Carlos H. Gomes Ciuffi, Katia J. Alfenas, C. dos S. Ricci, G. P. Faria, E. H. de Saltarelli, M. Lima, O. J. de Rocha, Z. N. da Nassar, E. J. Calefi, Paulo Sergio Montanari, Lilian B. Martins, Carlos H. Gomes Ciuffi, Katia J. |
| dc.subject.por.fl_str_mv |
Sol–gel Non-hydrolytic Nb–aluminum oxide Antibacterial activity |
| topic |
Sol–gel Non-hydrolytic Nb–aluminum oxide Antibacterial activity |
| description |
Acesso restrito: Texto completo. p. 65-70. |
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2011 |
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2011 |
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2012-03-07T18:55:02Z |
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info:eu-repo/semantics/publishedVersion |
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1381-1169 |
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v. 338, n. 1-2 |
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1381-1169 v. 338, n. 1-2 |
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DOI: 10.1016/j.molcata.2011.01.026 |
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