چكيده لاتين :
The main purpose of this study is to investigate the colloidal stability of hydroxyapatite (HAp) nanoparticles prepared by
different methods. Nano-sized hydroxyapatite particles are synthesized by two different methods including hydrothermal and
solvo-treatment processes. In hydrothermal process nanoparticles are synthesized at high temperature, while in solvo-treatment
method nanoparticles are synthesized at room temperature by the use of surfactants and organic solvent. The samples are
characterized by powder X-ray diffraction (XRD), fourier-transformed infrared spectroscopy (FT-IR), scanning electron
microscopy coupled with energy dispersive X-ray analysis detector (SEM + EDXA), and phase separation analyzer. The produced
nanoparticles are different in size, stoichiometric ratio, morphology, crystallinity and colloidal stability in a dilute dental adhesive.
The results show that the nanoparticles synthesized by these two methods are quite dissimilar and particles prepared by
hydrothermal method have a smaller size and higher colloidal stability.
