INVESTIGADORES
CERE silvia
artículos
Título:
Protective and bioactive hybrid sol-gel coatings on surgical grade stainless steel: Surface Characterization
Autor/es:
JOSEFINA BALLARRE; DAMIÁN A. LÓPEZ; WIDO H. SCHREINER; ALICIA DURÁN; SILVIA M. CERÉ
Revista:
APPLIED SURFACE SCIENCE
Editorial:
Elsevier
Referencias:
Año: 2007 vol. 253 p. 7260 - 7264
ISSN:
0169-4332
Resumen:
Metallic materials are the most used materials as orthopaedic or dental implants for their excellent mechanical properties. However they are not able to create a natural bonding with the mineralized bone and they could release metallic particles that could finally end in the removal of the implant. One way to avoid these effects is to protect the metallic implant with a biocompatible coating. In this work there are analyzed two kinds of protective organic-inorganic sol-gel made coatings with the adding of glass-ceramic particles with the aim of generating bioactivity. The samples are surface characterized by SEM, XRD and XPS. Amorphous hydroxyapatite (aHAp) deposited on the samples after 30 days of immersion in simulated body fluid (SBF) is detected on the samples and its presence is considered as a first signal of bioactivity.
