Structural And Morphological Investigations Of β-cyclodextrin-coated Silver Nanoparticles.

dc.creatorAndrade, Patricia Fernanda
dc.creatorde Faria, Andreia Fonseca
dc.creatorda Silva, Douglas Soares
dc.creatorBonacin, Juliano Alves
dc.creatorGonçalves, Maria do Carmo
dc.date2014-Jun
dc.date2015-11-27T13:42:26Z
dc.date2015-11-27T13:42:26Z
dc.date.accessioned2018-03-29T01:20:37Z
dc.date.available2018-03-29T01:20:37Z
dc.identifierColloids And Surfaces. B, Biointerfaces. v. 118, p. 289-97, 2014-Jun.
dc.identifier1873-4367
dc.identifier10.1016/j.colsurfb.2014.03.032
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/24780436
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/201360
dc.identifier24780436
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1301593
dc.descriptionThis paper describes the synthesis of silver nanoparticles using an aqueous silver nitrate solution in the presence of glucose as a reducing agent, sodium hydroxide as a reaction catalyst and β-CD as a stabilizer. The structure and the morphology associated to the stabilizing layer around the silver nanoparticles were investigated. Raman spectroscopy confirmed the nanoparticle surface modification by β-CD, demonstrating the interaction between the β-CD rim hydroxyl groups and the AgNP surface. Transmission electron microscopy images showed an average 28.0nm diameter pseudo-spherical nanoparticles. Apart from this, a novel characterization of the β-CD layer surrounding the nanoparticles was carried out by using complementary analytical electron microscopy based on electron spectroscopy imaging in the transmission microscope. Mapping images revealed the presence of carbon and oxygen, demonstrating the existence of a uniform and interacting β-CD layer covering the nanoparticles. The antibacterial activity was also investigated and the β-CD-coated silver nanoparticles showed a promising bactericidal activity against the microorganism Escherichia coli.
dc.description118
dc.description289-97
dc.languageeng
dc.relationColloids And Surfaces. B, Biointerfaces
dc.relationColloids Surf B Biointerfaces
dc.rightsfechado
dc.rightsCopyright © 2014 Elsevier B.V. All rights reserved.
dc.sourcePubMed
dc.subjectCoated Materials, Biocompatible
dc.subjectMetal Nanoparticles
dc.subjectMicrobial Sensitivity Tests
dc.subjectMicrobial Viability
dc.subjectParticle Size
dc.subjectPseudomonas Syringae
dc.subjectSilver
dc.subjectSolutions
dc.subjectSpectrophotometry, Ultraviolet
dc.subjectSpectroscopy, Fourier Transform Infrared
dc.subjectStaphylococcus Aureus
dc.subjectThermogravimetry
dc.subjectTime Factors
dc.subjectBeta-cyclodextrins
dc.subjectAntibacterial Activity
dc.subjectSilver Nanoparticles
dc.subjectStabilizing Layer
dc.subjectβ-cyclodextrin
dc.titleStructural And Morphological Investigations Of β-cyclodextrin-coated Silver Nanoparticles.
dc.typeArtículos de revistas


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