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dc.contributor.authorLongo, V. M.
dc.contributor.authorFoggi, Camila Cristina
dc.contributor.authorFerrer, Mateus M.
dc.contributor.authorGouveia, A. F.
dc.contributor.authorAndré, Rafaela S.
dc.contributor.authorAvansi, Waldir
dc.contributor.authorVergani, Carlos
dc.contributor.authorMachado, Ana L.
dc.contributor.authorAndrés, Juan
dc.contributor.authorCavalcante, Laécio S.
dc.contributor.authorHernandes, Antônio C.
dc.contributor.authorLongo, Elson
dc.identifier.citationLONGO, Valeria M., et al. Potentiated Electron Transference in α-Ag2WO4 Microcrystals with Ag Nanofilaments as Microbial Agent. The Journal of Physical Chemistry A, 2014, 118.31: 5769-5778.ca_CA
dc.description.abstractThis study is a framework proposal for understanding the antimicrobacterial effect of both α-Ag2WO4 microcrystals (AWO) synthesized using a microwave hydrothermal (MH) method and α-Ag2WO4 microcrystals with Ag metallic nanofilaments (AWO:Ag) obtained by irradiation employing an electron beam to combat against planktonic cells of methicillin-resistant Staphylococcus aureus (MRSA). These samples were characterized by X-ray diffraction (XRD), FT-Raman spectroscopy, ultraviolet visible (UV–vis) measurements, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and high resolution transmission electron microscopy (HRTEM). The results reveal that both AWO and AWO:Ag solutions have bacteriostatic and bactericidal effects, but the irradiated sample is more efficient; i.e., a 4-fold of the MRSA planktonic cells as compared to the nonirradiated sample was observed. In addition, first principles calculations were performed to obtain structural and electronic properties of AWO and metallic Ag, which provides strong quantitative support for an antimicrobacterial mechanism based on the enhancement of electron transfer processes between α-Ag2WO4 and Ag nanoparticles.ca_CA
dc.format.extent19 p.ca_CA
dc.publisherAmerican Chemical Societyca_CA
dc.relation.isPartOfJ. Phys. Chem. A, 2014, 118 (31)ca_CA
dc.rightsCopyright © 2014 American Chemical Societyca_CA
dc.subjectelectron transitionsca_CA
dc.subjectsilver compoundsca_CA
dc.subjectanti-bacterial agentsca_CA
dc.titlePotentiated Electron Transference in a-Ag2WO4 Microcrystals with Ag Nanofilaments as Microbial Agentca_CA

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