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Balancing porosity and mechanical properties of titanium samples to favor cellular growth against bacteria
Ana Civantos Fernandez
Ana M Beltran
Cristina Domínguez Trujillo
Maria D. Garvi
Julian Lebrato
José A. Rodríguez-Ortiz
Francisco García-Moreno
JUAN VALERIO CAUICH RODRIGUEZ
Julio J. Guzman
Yadir Torres
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.3390/met9101039
10.3390/met9101039
BONE IMPLANT
POROUS TITANIUM
CELLULAR ADHESION
BACTERIA COLONIZATION
OSSEOINTEGRATION
Two main problems limit the success of titanium implants: bacterial infection, which restricts their osseointegration capacity; and the stiffness mismatch between the implant and the host cortical bone, which promotes bone resorption and risk of fracture. Porosity incorporation may reduce this difference in stiffness but compromise biomechanical behavior. In this work, the relationship between the microstructure (content, size, and shape of pores) and the antibacterial and cellular behavior of samples fabricated by the space-holder technique (50 vol % NH4HCO3 and three ranges of particle sizes) is established. Results are discussed in terms of the best biomechanical properties and biofunctional activity balance (cell biocompatibility and antibacterial behavior). All substrates achieved suitable cell biocompatibility of premioblast and osteoblast in adhesion and proliferation processes. It is worth to highlighting that samples fabricated with the 100–200 μm space-holder present better mechanical behavior—in terms of stiffness, microhardness, and yield strength—which make them a very suitable material to replace cortical bone tissues. Those results exposed the relationship between the surface properties and the race of bacteria and mammalian cells for the surface with the aim to promote cellular growth over bacteria.
2019
Artículo
Metals, 9(10), 1039, 2019
Inglés
Civantos, A., Beltrán, A. M., Domínguez-Trujillo, C., Garvi, M. D., Lebrato, J., Rodríguez-Ortiz, J. A., ... & Torres, Y. (2019). Balancing porosity and mechanical properties of titanium samples to favor cellular growth against bacteria. Metals, 9(10), 1039.
PROPIEDADES DE LOS MATERIALES
Versión publicada
publishedVersion - Versión publicada
Aparece en las colecciones: Artículos de Investigación Arbitrados

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