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Influence of Biocompatible Coating on Titanium Surface Characteristics

Author(s):

Željka Petrović*, Jozefina Katić, Ankica Šarić, Ines Despotović, Nives Matijaković, Damir Kralj, Mirela Leskovac and Marin Petković   Pages 1 - 10 ( 10 )

Abstract:


Background: Nowadays investigations in the field of dental implants engineering are focused on bioactivity and osseointegration properties.

Objective: In this study, the oxide-covered titanium was functionalized by vitamin D3 molecules via a simple self-assembly method with the aim to design more corrosion-resistant and at the same time more bioactive surface.

Methods: Surface properties of the D3-coated titanium were examined by scanning electron microscopy, attenuated total reflectance Fourier transform infrared spectroscopy, and contact angle measurements, while long-term corrosion stability during immersion in an artificial saliva solution was investigated in situ by electrochemical impedance spectroscopy.

Results: Results of all techniques confirmed a successful formation of the vitamin D3 layer on the oxide-covered titanium. Besides very good corrosion resistivity (~5 MΩ cm2), the D3-modified titanium surface induced spontaneous formation of biocompatible bone-like calcium phosphates (CaP).

Conclusion: Observed in vitro CaP-forming ability as a result of D3-modified titanium/artificial saliva interactions could serve as a promising predictor of in vivo bioactivity of implant materials.

Keywords:

Titanium, vitamin D3, self-assembly, surface coating, calcium phosphates, corrosion properties

Affiliation:

Division of Materials Chemistry, Rudjer Boskovic Institute, Bijenicka cesta 54, Zagreb 10002, Department of Electrochemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb 10000, Division of Materials Physics, Centre of Excellence for Advanced Materials and Sensing Device, Rudjer Boskovic Institute, Bijenicka cesta 54, Zagreb 10002, Division of Physical Chemistry, Rudjer Boskovic Institute, Bijenicka cesta 54, Zagreb 10002, Division of Materials Chemistry, Rudjer Boskovic Institute, Bijenicka cesta 54, Zagreb 10002, Division of Materials Chemistry, Rudjer Boskovic Institute, Bijenicka cesta 54, Zagreb 10002, Department of Polymer Engineering and Organic Chemical Technology, Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb 10000, Department of Dental Implantology, Adentro dental Studio, Zagreb 10000



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