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Rose Scientific Publication, Melbourne, Australia Medbiotech Journal 2209-2528 03 04 2019 12 01 Characterization and Preparation of hydroxyapatite nanocrystalline through sol-gel method 131 134 105020 10.22034/mbt.2019.80872 EN Maher Muhammad Materials and Energy Research Center, UCSI University, Journal Article 2019 10 03 Nanocrystalline hydroxyapatite (HAP) powder was synthesized by a non-alkoxide sol-gel method. The prepared powder was characterized with STA, X-ray diffraction, Zetasizer and SEM microscopy. The effect of aging for 24h and heating time at 550 °C on crystallity, crystallite and particle size were studied through XRD, zetasizer and SEM. Results showed that the powder obtained after heating at 550 °C for 6h was composed of pure HAP with the estimated crystallite size and particle size of 9.3 nm and 503.6 nm. Hydroxyapatite Sol-Gel Nanocrystalline Powder http://www.medbiotech.net/article_105020_6d948185af5627aa4fe42018ae5652d0.pdf