التفاصيل البيبلوغرافية
| العنوان: |
Fabrication of nanoparticle carbonated hydroxyapatite by phase transformation of calcium carbonate prepared by sol-gel hydrothermal method. |
| المؤلفون: |
Thi, Bang Le, Khai, Hoang Quoc, Long, Bui Duc, Ramesh, S. |
| المصدر: |
AIP Conference Proceedings; 2023, Vol. 2643 Issue 1, p1-6, 6p |
| مصطلحات موضوعية: |
CALCIUM carbonate, PHASE transitions, NANOPARTICLES, SOL-gel processes, CALCIUM compounds, CERAMIC materials, CITRATES |
| مستخلص: |
Carbonated hydroxyapatite (CHAp) was bone composition as it contains 3-8wt.% carbonate. It has significantly higher osteoconductivity compared to other calcium phosphates-bioceramics and replaces to bone similar to autograft. However there is challenge to prepare CHAp due to carbonate loss during heat-treatment or sintering which is always used to prepare ceramic materials. In this study, the CHAp was synthesized at low temperature of 120°C thought phase transformation of calcite in 1 mol/L Na2HPO4 solution. The calcite was initially prepared by sol-gel citrate hydrothermal using calcium nitrate complexes in NaOH at different concentrations. The results showed that different calcium compounds of calcite and calcium hydroxide formed when NaOH concentration varied 2 to 3 mol/L. The calcite after immersed in Na2HPO4 converted to CHAp based on the dissolution-precipitation reaction. The CHA structure was made of nanosize crystals, needle-like shape ranging from 48-63 nm in length and 8-10 nm in width. This nanostructure material could facilitate the initial bone integration. Therefore, this synthesis approach could be pave the way for the preparation of bone substitute material. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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