Title Žematemperatūrė įvairių kalcio fosfatų granulių sintezė /
Translation of Title Low temperature synthesis of various calcium phosphate granules.
Authors Augulytė, Gabija
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Pages 34
Abstract [eng] Calcium phosphates (CaP) are the most important components of biological solid tissues. In the carbonate form of deficient hydroxyapatite and magnesium vitlockite, calcium phosphates are incorporated into the bones, teeth, and tendons. The aim of this work was to develop a simple method for the synthesis of low crystallinity carbonate calcium deficient hydroxypatite and magnesium vitlocite using precursor granules. A dissolution-precipitation reaction method was used for this purpose. Calcium sulfate hemihydrate was selected for the synthesis of the starting material product. Initially, two main granules of the chemical precursor were synthesized. During the synthesis, 200–350 μm granules were obtained at 80 ° C, depending on the composition of the initial granules and the solution in which the granules were soaked, low-crystalline calcium deficient hydroxyapatite (CDHA), carbonate hydroxyapatite (CO3Ap) and magnesium whitlockite (WH) were formed. The synthesis products were studied by thermal analysis infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM).
Dissertation Institution Vilniaus universitetas.
Type Master thesis
Language Lithuanian
Publication date 2021