Next Article in Journal
A Thermodynamically Consistent Model of Quasibrittle Elastic Damaged Materials Based on a Novel Helmholtz Potential and Dissipation Function
Previous Article in Journal
Mechanical Properties and Residual Stress Measurements of Grade IV Titanium and Ti-6Al-4V and Ti-13Nb-13Zr Titanium Alloys after Laser Treatment
 
 
Article

Improved Corrosion Behavior and Biocompatibility of Porous Titanium Samples Coated with Bioactive Chitosan-Based Nanocomposites

1
Departamento de Ciencia de Materiales e Ingeniería Metalúrgica, Escuela de Ingenierías Industriales, Universidad de Valladolid, Calle Paseo del Cace 59, 47011 Valladolid, Spain
2
Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Escuela Politécnica Superior, Calle Virgen de África 7, 41011 Sevilla, Spain
3
Departamento de Química Inorgánica, Escuela de Ingenierías Industriales, Universidad de Valladolid, Calle Paseo del Cace 59, 47011 Valladolid, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Andrzej Dziedzic and Tomasz Czujko
Materials 2021, 14(21), 6322; https://doi.org/10.3390/ma14216322
Received: 10 September 2021 / Revised: 14 October 2021 / Accepted: 18 October 2021 / Published: 22 October 2021
Porous titanium implants can be a good solution to solve the stress shielding phenomenon. However, the presence of pores compromises mechanical and corrosion resistance. In this work, porous titanium samples obtained using a space-holder technique are coated with Chitosan, Chitosan/AgNPs and Chitosan/Hydroxyapatite using only one step and an economic electrodeposition method. The coatings’ topography, homogeneity and chemical composition were analyzed. A study of the effect of the porosity and type of coating on corrosion resistance and cellular behavior was carried out. The electrochemical studies reveal that porous samples show high current densities and an unstable oxide film; therefore, there is a need for surface treatments to improve corrosion resistance. The Chitosan coatings provide a significant improvement in the corrosion resistance, but the Chitosan/AgNPs and Chitosan/HA coatings showed the highest protection efficiency, especially for the more porous samples. Furthermore, these coatings have better adherence than the chitosan coatings, and the higher surface roughness obtained favors cell adhesion and proliferation. Finally, a combination of coating and porous substrate material with the best biomechanical balance and biofunctional behavior is proposed as a potential candidate for the replacement of small, damaged bone tissues. View Full-Text
Keywords: porous titanium implants; electrodeposition; Chitosan/AgNPs; Chitosan/Hydroxyapatite coatings; corrosion characterization; in vitro behavior porous titanium implants; electrodeposition; Chitosan/AgNPs; Chitosan/Hydroxyapatite coatings; corrosion characterization; in vitro behavior
Show Figures

Figure 1

MDPI and ACS Style

García-Cabezón, C.; Godinho, V.; Salvo-Comino, C.; Torres, Y.; Martín-Pedrosa, F. Improved Corrosion Behavior and Biocompatibility of Porous Titanium Samples Coated with Bioactive Chitosan-Based Nanocomposites. Materials 2021, 14, 6322. https://doi.org/10.3390/ma14216322

AMA Style

García-Cabezón C, Godinho V, Salvo-Comino C, Torres Y, Martín-Pedrosa F. Improved Corrosion Behavior and Biocompatibility of Porous Titanium Samples Coated with Bioactive Chitosan-Based Nanocomposites. Materials. 2021; 14(21):6322. https://doi.org/10.3390/ma14216322

Chicago/Turabian Style

García-Cabezón, Cristina, Vanda Godinho, Coral Salvo-Comino, Yadir Torres, and Fernando Martín-Pedrosa. 2021. "Improved Corrosion Behavior and Biocompatibility of Porous Titanium Samples Coated with Bioactive Chitosan-Based Nanocomposites" Materials 14, no. 21: 6322. https://doi.org/10.3390/ma14216322

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop