Abstract
Biomimetic deposition is a low-cost method to coat complex-shaped substrates at physiological temperatures that requires long times to achieve coatings with a suitable adhesion strength. Thus, the chemical, morphological and mechanical properties of hydroxyapatite (HA) coatings on titanium obtained by biomimetic deposition using supersaturated calcification solutions (SCS) were studied. This approach also eliminates heat treatment during substrate activation and prior to HA deposition. The results showed that it is possible to obtain nanosized HA coatings on modified titanium within 4 h and the chemical composition of the coatings was affected by the pH of the SCS. Nevertheless, the final composition after post-deposition annealing treatment showed no differences in composition and coating features. Interfacial shear strength and critical loads were significantly higher than those reported using the traditional biomimetic method. However, in vitro and in vivo studies should be performed to confirm the results before clinical applications.
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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgments
To Alejandro Ortega-Rodés for the help provided in the composition and editing of images and figures. Also, to the Department of Metallurgy and Materials Engineering (MTM), KU Leuven, for the assistance in the cross sections characterization.
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This work was supported by the National Program National of Science, Technology and Innovation (PN211LH008-044) of the Cuban Ministry of Science, Technology and Environment (CITMA).
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Morejón-Alonso, L., Bussulo, M.A., Pérez, A.F. et al. Accelerated biomimetic nanosized apatite coatings deposition on alkali treated titanium. Journal of Materials Research 37, 4200–4210 (2022). https://doi.org/10.1557/s43578-022-00786-w
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DOI: https://doi.org/10.1557/s43578-022-00786-w