Evaluation of the Bioactivity Properties of Silver Doped Hydroxyapatite Depending on the Preparation Method
Journal of International Scientific Publications: Materials, Methods and Technologies 2014
Lāsma Mālniece, Arita Dubņika, Dagnija Loča, Līga Bērziņa-Cimdiņa

In the present study in vitro bioactivity properties of silver doped hydroxyapatite (HAp/Ag) ceramic scaffolds were evaluated. HAp/Ag powder samples with 0.3 - 2.0 wt % of silver were prepared by two different modified wet precipitation methods at 90 oC temperature. The Obtained fine HAp/Ag powder was used to prepare dense and porous HAp/Ag ceramic scaffolds. The bioactivity properties of dense and porous HAp/Ag ceramics scaffolds were determined in simulated body fluid (SBF). The scanning electron microscopy (SEM) investigations showed a nucleation process of calcium containing crystals and formation of bone-like apatite layer on the surface of HAp/Ag ceramic scaffolds. SEM microphotographs showed that the formed apatite layer on the dense HAp/Ag scaffolds was thicker if compared with porous HAp/Ag ceramic scaffolds. Significant differences in the formation process of bone-like apatite layer could be attributed to the differences of scaffold porosity, surface morphology and distribution of silver particles throughout the HAp/Ag ceramic scaffolds.


Keywords
hydroxyapatite, silver, in vitro, bioactivity, SBF solution
Hyperlink
http://www.scientific-publications.net/en/article/1000212/

Mālniece, L., Dubņika, A., Loča, D., Bērziņa-Cimdiņa, L. Evaluation of the Bioactivity Properties of Silver Doped Hydroxyapatite Depending on the Preparation Method. Journal of International Scientific Publications: Materials, Methods and Technologies, 2014, Vol. 8, pp.612-620. ISSN 1314-7269.

Publication language
English (en)
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