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dc.contributor.authorAlencar, Everton N.-
dc.contributor.authorXavier-Junior, Francisco H.-
dc.contributor.authorMorais, Andreza R. V.-
dc.contributor.authorDantas, Teresa R. F.-
dc.contributor.authorDantas-Santos, Nednaldo-
dc.contributor.authorVerissimo, Lourena M.-
dc.contributor.authorRehder, Vera L. G.-
dc.contributor.authorChaves, Guilherme M.-
dc.contributor.authorOliveira, Anselmo Gomes de-
dc.contributor.authorEgito, E. Socrates T.-
dc.identifier.citationJournal Of Nanoscience And Nanotechnology. Valencia: Amer Scientific Publishers, v. 15, n. 1, p. 880-888, 2015.-
dc.description.abstractThe aim of this work was to investigate the antimicrobial activity of nanostructured emulsions based on copaiba (Copaifera langsdotffii) resin-oil, copaiba essential oil, and bullfrog (Rana catesbeiana Shaw) oil against fungi and bacteria related to skin diseases. Firstly, the essential oil was extracted from copaiba resin-oil and these oils, along with bullfrog oil, were characterized by gas chromatography combined with mass spectrometry (GC-MS). Secondly, nanostructured emulsion systems were produced and characterized. The antimicrobial susceptibility assay was performed, followed by the Minimum Inhibitory Concentration (MIC) determination, the bioautography assay, and the antibiofilm determination. Strains of the genera Staphylococcus, Pseudomonas, and Candida were used. The CG-MS analysis was able to identify the components of copaiba resin-oil, copaiba essential oil, and bullfrog oil. The MIC assay in association with the bioautography revealed that some esters of palmitic and oleic acids, alpha-curcumene, alpha-himachalene, isothujol, and alpha-fenchene-probably inhibited some strains. The nanostructured emulsions based on copaiba resin-oil and essential oil improved the antimicrobial activity of the pure oils, especially against Staphylococcus and Candida, resistant to azoles. The bullfrog oil nanostructured emulsion showed a lower antimicrobial effect when compared to the copaiba samples. However, bullfrog oil-based nanostructured emulsion showed a significant antibiofilm activity (p<0.05). Given the significant antimicrobial and antibiofilm activities of the evaluated oils, it may be concluded that nanostructured emulsions based on copaiba and bullfrog oils are promising candidates for the treatment of infections and also may be used to incorporate other antimicrobial drugs.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.publisherAmer Scientific Publishers-
dc.sourceWeb of Science-
dc.subjectNanostructured Emulsionen
dc.subjectCopaiba (Copaifera langsdorffii) Oilen
dc.subjectBullfrog (Rana catesbeiana) Oilen
dc.subjectAntimicrobial Activityen
dc.titleChemical Characterization and Antimicrobial Activity Evaluation of Natural Oil Nanostructured Emulsionsen
dc.contributor.institutionUniv Fed Rio Grande Norte UFRN-
dc.contributor.institutionUniv Fed Rio Grande do Norte-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Fed Rio Grande Norte UFRN, CCS, PPGCF, BR-59010180 Natal, RN, Brazil-
dc.description.affiliationUniv Fed Rio Grande Norte UFRN, CCS, UFRN, Fac Farm,Lab Sistemas Dispersos LaSiD, BR-59010180 Natal, RN, Brazil-
dc.description.affiliationUniv Fed Rio Grande do Norte, Rede Nordeste Biotecnol RENORBIO, Programa Posgrad, BR-59000000 Natal, RN, Brazil-
dc.description.affiliationUniv Estadual Campinas CAMP, Ctr Pluridisciplinar Pesquisas Quim, BR-13081970 Paulinia, SP, Brazil-
dc.description.affiliationFac Ciencias Farmaceut UNESP, Dept Farmacos Medicamentos, BR-14801902 Araraquara, SP, Brazil-
dc.description.affiliationUnespFac Ciencias Farmaceut UNESP, Dept Farmacos Medicamentos, BR-14801902 Araraquara, SP, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal Of Nanoscience And Nanotechnology-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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