The Study of Morphology and Grain Size of Hydroxyapatite/Zeolite Nanocomposite Using SEM and TEM Analyses
Fereshteh Khorasani, Maryam Khavarpour, Mohamad Shokrzade Lamuk
Bone is a real nanocomposite composed of organic (collagen) and inorganic (nano-hydroxyapatite) phases. The construction of new composites as bone and tissue substitute is one of the attractive topics in bone and tissue engineering. Nano-hydroxyapatite and its composites containing 2.5, 5 and 7.5 percent of zeolite have been synthesized in this research. SEM and TEM analyses were utilized to study morphology and evaluate the particle size of the composites. The results showed that the particle size in pure hydroxyapatite and its composite was 40-200 nm. The surface characterization study indicated that the accumulation of particles on the surface increases and the particle size would be more uniform as the concentration of the zeolite increases. Finally, according to the results, the use of 7.5% zeolite is recommended for the synthesis of hydroxyapatite-zeolite nano-composite as the bone substitute.