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dc.contributor.authorSouto, Ricardo Manuel 
dc.contributor.authorCiurescu, G.
dc.contributor.authorIzquierdo Pérez, Javier 
dc.contributor.authorSantana, Juan José
dc.contributor.authorMareci, Daniel
dc.contributor.authorSutiman, Daniel
dc.contributor.authorGonzález, Sergio
dc.date.accessioned2020-03-23T14:35:27Z
dc.date.available2020-03-23T14:35:27Z
dc.date.issued2012es_ES
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/19026
dc.description.abstractScanning electrochemical microscopy (SECM) was employed for in situ characterization of surface chemical activity of various Ti-Mo and Ti-Ta alloys for biomedical application. In this work the local differences in surface reactivity for different Ti-Mo and Ti-Ta alloys were analyzed when they were polarized in 0.1 M NaCl solution and in Ringer’s physiological solution using SECM, and results compared to those for the unbiased samples. The analysis of the shape of the approach curves obtained for the Ti-Mo and Ti-Ta alloys shows a different behaviour to be distinguished depending on the nature of the alloying element. There are also differences among the various Ti-Ta alloys tested, that cause changes in the shape of the approach curves with the value of the polarization applied to the substrate, defining a transition potential between -0.30 and -0.40 V vs. Ag/AgCl/KCl(3M) for most of the systems under study. Furthermore, from the line scans and array scans, a change in reactivity of the surface has been observed corresponding to the activation of the localized sites which occurs selectively with the applied potential. SECM is shown to be a powerful technique for the investigation of the surface characteristics of biomaterials in simulated physiological environments.en
dc.format.mimetypeapplication/pdf
dc.language.isoenes_ES
dc.relation.ispartofseriesInternational Journal of Electrochemical Science, 7, 7404-7424 (2012)es_ES
dc.rightsLicencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
dc.titleCharacterization of the localized surface chemical activity of Ti-Mo and Ti-Ta alloys for biomedical applications using scanning electrochemical microscopyen
dc.typeinfo:eu-repo/semantics/article
dc.subject.keywordScanning electrochemical microscopyen
dc.subject.keywordTi-Ta alloysen
dc.subject.keywordsurface chemical activityen
dc.subject.keywordpassivityen


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Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
Except where otherwise noted, this item's license is described as Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)