Biomaterials: deposition of hydroxyapatite on Ticp surfaces modified by thermal aspersion

Química Nova

Vercik, Luci de Oliveira¹  Universidade Estadual Paulista, Araraquara, Brasil¹  Almeida Filho, Edson de¹  Assis, Camila Molena de¹  Guastaldi, Antonio Carlos¹ 

关键词: hydroxyapatite;    surface modification;    biomimetic.;   

DOI  :  10.1590/S0100-40422007000500034

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The osseointegrated titanium implants are reliable and safe alternatives to treatments for long periods of time. For surface modification, thermal aspersion of TiO2 was used. The samples with and without TiO2 were treated with NaOH and SBF in order to obtain a layer of HA. Characterization was done by SEM and FTIR. The images of HA obtained by SEM show a uniform morphology and a porous structure with spherical particles. The IR spectra show that the surface of Ticp/ TiO2 is more favorable for the HA deposit, as can be seen by the increase of the crystalline structure and the very intense and defined bands of the OH group of HA that is verified about 3571 and 630 cm-1. Thus the Ticp/ TiO2 surface presents a satisfactory nucleation of HA when compared to Ticp.

【 授权许可】

Unknown