Título
DEVELOPMENT OF HA - nAg COMPOSITE COATING FROM GREEN PROCESS FOR HIP APPLICATIONS
Autor
VICTOR MANUEL OROZCO CARMONA
ANTONIO SERGUEI LEDEZMA PEREZ
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
In this study, biological hydroxyapatite was obtained from bovine bones by thermal process. Then 0 and 1 % nano-silver
synthesized by Opuntia ficus (nopal) containing biological hydroxyapatite coatings on a Ti6Al4V substrate were developed by
atmospheric plasma spray (APS), and their antibacterial efficiency was evaluated in the following bacterial strains: Escherichia
coli, Staphylococcus aureus and Pseudomonas aeruginosa according to the JIS Z2801:2000 standard “Antimicrobial product-
Test for antimicrobial activity and efficacy”. Ion release test shows that the coating delivered silver ions below 0.05 ppm; as
well as calcium, potassium, magnesium and sodium ions (it are cell growing promoters). Scanning electron microscopy (SEM)
showed that nano-silver particles (nAg) were distributed on the coating surface. Energy-dispersive X-ray spectroscopy (EDX)
shows that apatite deposition occurs day by day, maintaining a Ca/P rate between 2.12 and 1.45. Biocompatibility properties
were evaluated with Allium cepa, lymphocytes (fresh blood) and mouse osteoblast cells (MC3T3) by Allium cepa assay, single
cell gel electrophoresis assay and Tali image cytometry.
Fecha de publicación
2016
Tipo de publicación
Memoria de congreso
Versión de la publicación
Versión enviada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Repositorio Orígen
Fuente de Objetos Científicos Open Access
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