Back to Search Start Over

Manufacture of nanosized apatite coatings on titanium with different surface treatments using a supersaturated calcification solution

Authors :
María Belén Parodi
Laura Rodríguez
Jesús Eduardo González Ruiz
Gabriel Ybarra
Adrian Paz Ramos
Leonardo M. Pazos
Mónica López Hernández
Source :
Química Nova, Vol 39, Iss 10, Pp 1159-1164, Química Nova, 39 (10), Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI), Instituto Nacional de Tecnología Industrial, instacron:INTI, Química Nova v.39 n.10 2016, Química Nova, Sociedade Brasileira de Química (SBQ), instacron:SBQ, Química Nova, Volume: 39, Issue: 10, Pages: 1159-1164, Published: DEC 2016
Publisher :
Sociedade Brasileira de Química

Abstract

The biomimetic method is used for the deposition of calcium phosphate coatings (Ca – P) on the surface of different biomaterials. However, the application of this method requires long exposure times in order to obtain a suitable layer thickness for its use in medical devices. In this paper, we present a fast approach to obtain apatite coatings on titanium, using a combination of supersaturated calcification solution (SCS) with chemical modification of the titanium surface. Also, it was evaluated the effect of four different surface treatments on the apatite deposition rate. Commercially pure titanium plates were activated by chemical or thermochemical treatments. Then, the activated samples were immersed in a solution with high content of calcium and phosphate ions at 37 °C for 24 h, mimicking the physiological conditions. The coatings were studied by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The use of SCS solutions allowed the formation of crystalline hydroxyapatite coatings within a period of 24 h with a thickness between 1 and 5.3 μm. Besides, precipitates of hydroxyapatite nanoparticles with a globular configuration, forming aggregates with submicrometer size, were found in SCS solutions. Fil: Paz Ramos, Adrian. Université de Montréal; Canadá Fil: Ybarra, Gabriel O. Instituto Nacional de Tecnología Industrial (INTI); Argentina Fil: Pazos, Leonardo M. Instituto Nacional de Tecnología Industrial (INTI); Argentina Fil: Parodi, María B. Instituto Nacional de Tecnología Industrial (INTI); Argentina Fil: Rodríguez, Laura. Instituto Nacional de Tecnología Industrial (INTI); Argentina Fil: López Hernández, Mónica. Centro Nacional de Investigaciones Cientificas (CNIC); Cuba Fil: González Ruíz, Jesús E. Universidad de La Habana. Centro de Biomateriales (BioMat-UH); Cuba

Details

Language :
English
ISSN :
16787064
Volume :
39
Issue :
10
Database :
OpenAIRE
Journal :
Química Nova
Accession number :
edsair.doi.dedup.....1c86eb5c80ce6bc295d6b8ca248f43a5