synthesis of hydroxyapatite nanoparticles trough polyelectrolyte-modified microemulsions

نویسندگان

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).

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عنوان ژورنال:
international journal of nano dimension

جلد ۳، شماره ۲، صفحات ۱۲۱-۱۲۵

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