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    • Instituto Universitario de Investigación en Bioeconomía(BioEcoUVa)
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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/50952

    Título
    Improved corrosion behavior and biocompatibility of porous Titanium samples coated with bioactive Chitosan-based nanocomposites
    Autor
    García Cabezón, Ana CristinaAutoridad UVA Orcid
    Godinho, Vanda
    Salvo Comino, CoralAutoridad UVA
    Torres Hernández, Yadir
    Martín Pedrosa, FernandoAutoridad UVA Orcid
    Año del Documento
    2021
    Editorial
    MDPI
    Descripción
    Producción Científica
    Documento Fuente
    Materials, 2021, vol. 14, n. 21, 6322
    Abstract
    Porous titanium implants can be a good solution to solve the stress shielding phenomenon. However, the presence of pores compromises mechanical and corrosion resistance. In this work, porous titanium samples obtained using a space-holder technique are coated with Chitosan, Chitosan/AgNPs and Chitosan/Hydroxyapatite using only one step and an economic electrodeposition method. The coatings’ topography, homogeneity and chemical composition were analyzed. A study of the effect of the porosity and type of coating on corrosion resistance and cellular behavior was carried out. The electrochemical studies reveal that porous samples show high current densities and an unstable oxide film; therefore, there is a need for surface treatments to improve corrosion resistance. The Chitosan coatings provide a significant improvement in the corrosion resistance, but the Chitosan/AgNPs and Chitosan/HA coatings showed the highest protection efficiency, especially for the more porous samples. Furthermore, these coatings have better adherence than the chitosan coatings, and the higher surface roughness obtained favors cell adhesion and proliferation. Finally, a combination of coating and porous substrate material with the best biomechanical balance and biofunctional behavior is proposed as a potential candidate for the replacement of small, damaged bone tissues.
    Palabras Clave
    Titanium implants
    Implantes de titanio
    Electrodeposition
    Electrodeposición
    Chitosan-based nanocomposites
    Nanocompuestos de quitosano
    ISSN
    1996-1944
    Revisión por pares
    SI
    DOI
    10.3390/ma14216322
    Patrocinador
    Ministerio de Ciencia, Innovación y Universidades (grants RTI2018-097990-B-I00 and PID2019-109371GB-I00)
    Junta de Andalucía - Fondo Europeo de Desarrollo Regional (project US-1259771)
    Junta de Castilla y León (projects VA275P18 and VA044G19)
    Version del Editor
    https://www.mdpi.com/1996-1944/14/21/6322
    Propietario de los Derechos
    © 2021 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/50952
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
    Collections
    • BioEcoUVa - Artículos de revista [193]
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    Atribución 4.0 InternacionalExcept where otherwise noted, this item's license is described as Atribución 4.0 Internacional

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