Nanocomposites and nanomaterials

Effect of type of glass on the preparation and properties 
of highly-porous bioceramics
based on hydroxyapatite different origin
Sych O.1, Chodara A.2, Iatsenko A.3, Mizeracki J.2, Gierlotka S.2, Koltsov I.2, Wojnarowicz J.2, Łojkowski W.2
1 Department of Functional Materials for Medical Application, Frantsevich Institute for Problems of Materials Science of NAS of Ukraine.
Krzhyzhanovsky Str., 3, Kyiv-03142, Ukraine.
E-mail: lena_sych@ukr.net
2 Laboratory of Nanostructures, Institute of High Pressure Physic of the Polish Academy of Sciences, 01-142 Warsaw, Sokolowska Street 29/37, Poland.
3 Department of Chemical Technology of Ceramics and Glass, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute".
Peremogy Ave., 37, Kyiv-03056, Ukraine.

Highly-porous hydroxyapatite and its composites are excellent materials for bone tissue engineering.
In the present work highly-porous bioceramics samples were prepared by foam replication method at 1000–1100 °C using the following starting materials: synthetic hydroxyapatite (obtained by microwave synthesis), biogenic hydroxyapatite (obtained by annealing of cattle bones), SiO2-Na2O-CaO glass, SiO2-Na2O-CaO glass with fluorine addition and SiO2-Na2O-B2O3 glass.
Prepared materials were investigated by X-ray diffraction analysis (X’Pert PRO, PANalytical), Fourier-transform infrared spectroscopy (STA 449 F1 Jupiter, Netzsch) and Scanning electron microscopy (Zeiss Ultra Plus, Carl Zeiss Meditec AG). Moreover, specific surface area (Gemini 2360, Micromeritics), skeleton density (AccuPyc II 1340, Micromeritics) and slurry stability (Turbiscan Lab, Formulation) were controlled.
It was established significant influence of type of glass and hydroxyapatite origin on the technological features of obtaining, phase composition and microstructure of highly-porous bioceramics that could be promising for the follow-up medical investigation.
The publication contains the results of studies conducted by Grant for monthly visits of Ukrainian scientists to Poland according to the Protocol to the Agreement on Scientific Cooperation between the National Academy of Sciences of Ukraine and the Polish Academy of Sciences.