Artículo
Directed Irradiation Synthesis as an Advanced Plasma Technology for Surface Modification to Activate Porous and “as-received” Titanium Surfaces
Autor/es | Civantos, Ana
Allain, Jean Paul Pavón Palacio, Juan José Shetty, Akshath El-Atwani, Osman Walker, Emily Arias, Sandra L. Gordon, Emily Rodríguez-Ortiz, José Antonio Chen, Mike Torres Hernández, Yadir |
Departamento | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte |
Fecha de publicación | 2019 |
Fecha de depósito | 2020-02-12 |
Publicado en |
|
Resumen | For the design of smart titanium implants, it is essential to balance the surface properties without any detrimental effect on the bulk properties of the material. Therefore, in this study, an irradiation-driven surface ... For the design of smart titanium implants, it is essential to balance the surface properties without any detrimental effect on the bulk properties of the material. Therefore, in this study, an irradiation-driven surface modification called directed irradiation synthesis (DIS) has been developed to nanopattern porousand“as-received”c.p. Tisur faces with the aim of improving cellular viability. Nano features were developed using singly-charged argon ions at 0.5 and 1.0 keV energies, incident angles from 0◦ to 75◦ degrees, and fluences up to 5.0×1017 cm−2. Irradiated surfaces were evaluated by scanning electron microscopy, atomic force microscopy and contact angle, observing an increased hydrophilicity (a contact angle reduction of 73.4% and 49.3%) and a higher roughness on both surfaces except for higher incident angles, which showed the smoothest surface. In-vitro studies demonstrated the biocompatibility of directed irradiation synthesis (DIS) reaching 84% and 87% cell viability levels at 1 and 7 days respectively, and a lower percentage of damaged DNA in tail compared to the control c.p. Ti. All these results confirm the potential of the DIS technique to modify complex surfaces at the nanoscale level promoting their biological performance. |
Identificador del proyecto | W81XWH-11-2-0067
MAT2015-71284-P |
Cita | Civantos, A., Allain, J.P., Pavón Palacio, J.J., Shetty, A., El-Atwani, O., Walker, E.,...,Torres Hernández, Y. (2019). Directed Irradiation Synthesis as an Advanced Plasma Technology for Surface Modification to Activate Porous and “as-received” Titanium Surfaces. Metals, 9 (12), 1349-. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
M_ortiz_2019_directed.pdf | 3.725Mb | [PDF] | Ver/ | |