Synthesis of hydroxyapatite nanoparticles trough polyelectrolyte-modified microemulsions

International Journal of Nano Dimension

مقاله 6، دوره 3، شماره 2، اسفند 2012، صفحه 121-125   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.7508/ijnd.2012.02.005

نویسنده

K. Akhavan^*

Department of Chemistry, Faculty of science, Islamic Azad University, Rasht Branch, Rasht, Iran.

چکیده

The paper is focused on the formation of hydroxyapatite nanoparticles (HAp) in polyelectrolyte-modified microemulsions, in a microemulsion template phase consisting of cyclohexane, water, cationic surfactant and cosurfactant, in the presence of Na-polyacrylate (PAA) as an anionic polyelectrolyte. It is shown that PAA, can be incorporated into the individual inverse microemulsion droplets. The microemulsion droplets and PAA-filled microemulsion droplets can be successfully used as a template phase for the nanoparticles formation. Prepared HAp in presence of polyelectrolyte has a different morphology from samples which are synthesized in absence of polyelectrolyte. PAA leads to formation of needle-like HAp (20-30nm in diameter and 100-200nm in length). Formation of HAp at room temperature was confirmed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). Size and morphology of the HAp samples were characterized using transmission electron microscopy (TEM).

کلیدواژه‌ها

Microemulsion؛ Polyelectrolyte–modified microemulsion؛ Hydroxyapatite؛ Na-polyacrylate