Journal
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
Volume 105, Issue 3, Pages 679-688Publisher
WILEY
DOI: 10.1002/jbm.b.33590
Keywords
hydroxyapatite; nanoparticles; dicalcium phosphate dihydrate (CaHPO4 center dot 2H2O); calcium carbonate (CaCO3); wet mechanochemical method
Funding
- National Metal and Materials Technology Center (MTEC) [MT-B-52-CER-07-238-I, MT-B-55-CER-07-291-I]
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Hydroxyapatite (HA) nanoparticles were synthesized using a wet mechanochemical method without a calcination process. Dicalcium phosphate dihydrate (CaHPO(4)2H(2)O) and calcium carbonate (CaCO3) were mixed and milled in a planary mill using ethanol or water as liquid media in the two different synthesized routes. Effects of rotation speed and milling time on the final products formed have been studied. Experimental results showed that HA phase having a characteristic of low crystallinity could be formed under the synthesis route using water. The original phases of both starting chemicals were remained without HA formation in the synthesis route using ethanol. Particle size and morphology of HA nanoparticles were obviously depended on optimum conditions of rotation speed and milling time. Differences on phase formation in both synthesized routes have been considered and discussed based on occurring chemical reaction possibilities. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 679-688, 2017.
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