Publication Type Journal Article
Title Surface and mechanical properties of a nanostructured citrate hydroxyapatite coating on pure titanium
Authors Mar Arres Mariana Salama Diogo Rechena Patrizia Paradiso Luis Reis Marta M. Alves Ana M. Botelho do Rego Maria J. Carmezim MF Vaz Augusto M. Deus C. Santos
Groups CSSE
Journal JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
Year 2020
Month August
Volume 108
Number
Pages
Abstract The presence of a biomimetic HAP coating on titanium surface, which reduces the structural stiffness, is essential to improve implants biocompatibility and osteointegration. In this study, new citrate-HAP (cHAP) coatings were produced by a simple hydrothermal method on pure titanium (Ti) surface, without requiring any additional pretreatment on this metal surface. The formed cHAP coatings consisting of nanorod-like hydroxyapatite particles, conferred nanoroughness and wettability able to endow improved biological responses. Indeed, the presence of citrate species in the precipitate medium seems to be responsible for controlling the morphology of the new coatings. The presence of citrate groups on the surface of cHAP coatings, identified by chemical composition analysis, due to their implication in bone metabolism can additionally bring an add-value for bone implant applications. From a mechanical point of view, the Finite Element algorithm showing that cHAP coatings tend to decrease the mechanical stress at pure Ti, further favors these new coatings applicability. Overall, the simple and expedite strategy used to developed new biomimetic coatings of citrate-HAP resulted in improved physicochemical, morphological and mechanical properties of Ti, which can endeavor improved implantable materials in bone healing surgical procedures.
DOI http://dx.doi.org/10.1016/j.jmbbm.2020.103794
ISBN
Publisher
Book Title
ISSN 1751-6161
EISSN 1878-0180
Conference Name
Bibtex ID ISI:000536301100012
Observations
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