Synthesis and characterization of nanocrystalline hydroxyapatite from natural bovine bone
2007; Elsevier BV; Volume: 8; Issue: 3-4 Linguagem: Inglês
10.1016/j.cap.2007.10.076
ISSN1878-1675
AutoresA. Ruksudjarit, Kamonpan Pengpat, G. Rujijanagul, Tawee Tunkasiri,
Tópico(s)Dental Implant Techniques and Outcomes
ResumoNanocrystalline hydroxyapatite (HA) powder was synthesized from natural bovine bone by a vibro-milling method. The bovine bone had been deproteinized by hot water before it was calcined at 800 °C for 3 h. The resulting product was crushed into small pieces and milled in a ball mill pot for 24 h. After that the powders were ground by the vibro-milling method with various milling times. Characteristics of the powders were then investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDS). Nanocrystalline HA powder with diameter less than 100 nm were revealed from the samples using vibro-milling time of 2 h, 4 h and 8 h. Ca/P molar ratio in the powder was 1.66 which is close to the theoretical value that found in the pure hydroxyapatite.
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