EVALUATION OF THE BIOACTIVITY PROPERTIES OF SILVER DOPED HYDROXYAPATITE DEPENDING ON THE PREPARATION METHOD
L. Poca, A. Dubnika, D. Loca, L. Berzina-Cimdina
Pagini: 612-620
Publicat: 2 Jun 2014
Vizualizări: 3,222
Descărcări: 1,760
Rezumat: 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°C 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.
Cuvinte cheie: hydroxyapatite, silver, in vitro, bioactivity, sbf solution
Citează acest articol: L. Poca, A. Dubnika, D. Loca, L. Berzina-Cimdina. EVALUATION OF THE BIOACTIVITY PROPERTIES OF SILVER DOPED HYDROXYAPATITE DEPENDING ON THE PREPARATION METHOD. Journal of International Scientific Publications: Materials, Methods & Technologies 8, 612-620 (2014). https://www.scientific-publications.net/en/article/1000212/
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