Niobium based coatings for dental implants
Por:
Ramírez G., Rodil S.E., Arzate H., Muhl S., Olaya J.J.
Publicada:
15 ene 2011
Categoría:
Surfaces, Coatings and Films
Resumen:
Niobium based thin films were deposited on stainless steel (SS) substrates to evaluate them as possible biocompatible surfaces that might improve the biocompatibility and extend the life time of stainless steel dental implants. Niobium nitride and niobium oxide thin films were deposited by reactive unbalanced magnetron sputtering under standard deposition conditions without substrate bias or heating. The biocompatibility of the surfaces was evaluated by testing the cellular adhesion and viability/proliferation of human cementoblasts during different culture times, up to 7 days. The response of the films was compared to the bare substrate and pieces of Ti6Al4V; the most commonly used implant material for orthopedics and osteo-synthesis applications. The physicochemical properties of the films were evaluated by different means; X-ray diffraction, Rutherford backscattering spectroscopy and contact angle measurements. The results suggested that the niobium oxide films were amorphous and of
Filiaciones:
Ramírez G.:
Univ Nacl Autonoma Mexico, Inst Invest Mat, CU, Mexico City 04510, DF, Mexico
Univ Nacl Autonoma Mexico, Fac Quim, Dept Ingn Quim, Mexico City 04510, DF, Mexico
Rodil S.E.:
Univ Nacl Autonoma Mexico, Inst Invest Mat, CU, Mexico City 04510, DF, Mexico
Arzate H.:
Univ Nacl Autonoma Mexico, Lab Biol Celular & Mol, Fac Odontol, Mexico City 04510, DF, Mexico
Muhl S.:
Univ Nacl Autonoma Mexico, Inst Invest Mat, CU, Mexico City 04510, DF, Mexico
Olaya J.J.:
Unidad de Materiales, Departamento de Ingeniería Mecánica y Mecatrónica, Universidad Nacional de Colombia, Cra. 30 45-03 Bogotá, Colombia
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