Co°superparamagnetic nanoparticles stabilized by an organic layer coating with antimicrobial activity

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dc.contributor.authorSantana, Paula A.
dc.contributor.authorCastillo, Carolina A.
dc.contributor.authorMichea, Sebastián A.
dc.contributor.authorVenegas-Yazigi, Diego
dc.contributor.authorParedes-García, Verónica
dc.date.accessioned2022-06-02T21:11:06Z
dc.date.available2022-06-02T21:11:06Z
dc.date.issued2020-09
dc.descriptionIndexación: Scopus.es
dc.description.abstractCobalt (Co) is one of the most promising materials in nanotechnology due to its superior magnetic properties. However, due to the high cytotoxicity of cobalt, the activity in biological systems has been little studied. In this work, we report the structural, morphological, and magnetic properties of cobalt nanoparticles stabilized with an organic layer (Co0@C-NPs) and its potential antimicrobial activity. The Co0@C-NPs were obtained from solvothermal conditions and characterized by X-ray powder diffraction, electronic microscopy, and magnetic measurements. The organic layer was analysed by thermogravimetric analysis, Scanning Electron Microscopy, Energy Dispersive Spectrometer, and Fourier Transform Infrared Spectroscopy. From the TEM image, an organic coating layer is observed around Co0where this coating prevents NPs from oxidation allowing it to remain stable until 400 °C. Surface composition studies by SEM/EDS allowed the identification of carbon, oxygen, and cobalt elements present in the organic layer. This result was corroborated later by FITR analysis. Preliminary antibacterial properties were also investigated, which showed that the cobalt nanoparticles are active againstStaphylococcus aureusafter 1 h of exposure. The superparamagnetic properties and organic coating Co0@C-NPs could be biocompatible with biological systems, but more research is needed to apply these nanoparticles in biomedical products. © The Royal Society of Chemistry 2020.es
dc.description.urihttps://pubs.rsc.org/en/content/articlelanding/2020/RA/D0RA07017C
dc.identifier.citationRSC AdvancesOpen AccessVolume 10, Issue 57, Pages 34712 - 3471818 September 2020es
dc.identifier.doi10.1039/d0ra07017c
dc.identifier.issn20462069
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/22702
dc.language.isoenes
dc.publisherRoyal Society of Chemistryes
dc.rights.licenseAttribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/
dc.subjectBiocompatibilityes
dc.subjectBiological systemses
dc.subjectCobaltes
dc.subjectFourier transform infrared spectroscopyes
dc.subjectMagnetic propertieses
dc.subjectMicroorganismses
dc.subjectNanomagneticses
dc.subjectNanoparticleses
dc.subjectOrganic coatingses
dc.subjectScanning electron microscopyes
dc.subjectSpectrometerses
dc.subjectThermogravimetric analysises
dc.subjectX ray powder diffractiones
dc.titleCo°superparamagnetic nanoparticles stabilized by an organic layer coating with antimicrobial activityes
dc.typeArtículoes
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