Effect of Low Magnetic Field on Biomimetic Deposition of Hydroxyapatite on Titanium and BIOLINE Stainless Steel
| Autor: | Omar Bonilla, Andrea Uvillús, Luis Lascano, Gema González, Rafael Uribe |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
chemistry.chemical_element hydroxyapatite Surfaces and Interfaces Adhesion Alkali metal Engineering (General). Civil engineering (General) Surfaces Coatings and Films Contact angle Metal BIOLINE stainless steel SS316LVM chemistry Chemical engineering visual_art biomaterials titanium-biocompatible substrates Materials Chemistry visual_art.visual_art_medium Fourier transform infrared spectroscopy TA1-2040 Deposition (law) Stoichiometry Titanium |
| Zdroj: | Coatings; Volume 11; Issue 12; Pages: 1484 Coatings, Vol 11, Iss 1484, p 1484 (2021) |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings11121484 |
| Popis: | In this work, we evaluated the effect of a low magnetic field on the deposition of hydroxyapatite (HAp) on different metallic substrates. The substrates studied were titanium and BIOLINE stainless steel SS316LVM with and without Ta and TaN/Ta coatings. Before deposition, the uncoated Ti and SS316LVM substrates were treated with alkali to improve the adhesion of the films prompted to be formed. Next, all substrates (coated and uncoated) were immersed in stimulated body fluid (SBF) at physiological conditions of 37 °C, pH = 7.4, in the presence of magnetic fields from 0.15 T and 0.22 T for 7, 10, and 14 days. The formed films were characterized using SEM, FTIR, and the contact angle. Ti and SS316LVM substrates presented Ca/P relations closer to the stoichiometric HAp. It was demonstrated that in both coatings, Ta and Ta/N, an increase of the bioactivity was obtained. Additionally, our results showed that the application of magnetic fields has a significant effect on the increment in the mass:area ratio of HAp. Finally, the contact angle values were lower than 90°, showing an increase in hydrophilicity with respect to the metallic substrates. |
| Databáze: | OpenAIRE |
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