SYNTHESIS OF NEEDLE-LIKE HYDROXYAPTITE–GLUTAMIC ACID NANOCOMPOSITE PREPARED BY BIOMIMMETIC METHOD

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HAZRATI F.; BEHNAMGHADER A.; TOLOUEI R.; TAHRIRI M.R.

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Paper Information

Journal: NANOMATERIALS (JOURNAL OF NANOCOMPOSITE MATERIALS RESEARCH) Year:2009 | Volume:1 | Issue:2 Page(s): 103-110

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Information Journal Paper

Title

SYNTHESIS OF NEEDLE-LIKE HYDROXYAPTITE–GLUTAMIC ACID NANOCOMPOSITE PREPARED BY BIOMIMMETIC METHOD

Author(s)

HAZRATI F. | BEHNAMGHADER A. | TOLOUEI R. | TAHRIRI M.R. | Issue Writer Certificate

Keywords

HYDROXYAPTITEQ2

NANOCOMPOSITEQ2

GLUTAMIC ACIDQ4

PROTEINQ4

BIOMIMETICQ4

Abstract

In this study, the needle-like hydroxyapatite nanoparticles were prepared with aqueous solution of GLUTAMIC ACID with a concentration of 0.2 M and 0.4 M via biomimmetic synthesis method. The Ca (NO3) 2.4H2O and (NH4) 2HPO4 were used as Ca and P precursors. The phase development and chemical structure were studied by XRD and FT-IR. Also, morphology of nanoparticles was investigated by SEM and TEM. Crystallinity of powders was decreased with increasing the amino acid. The characteristic peaks of hydroxyapatite were identified in the FT-IR spectra and XRD patterns of heat treated powders. Also, the FT-IR analysis revealed the presence of COOH-bonds of GLUTAMIC ACID. TEM images showed the needle shape nanoparticles obtained after a heat treatment at 600°C. The particle size values measured by TEM was about 20-100 nm. The carboxylate, carbonyl and amides groups of PROTEINs can be considered as the nucleation sites of needle shape hydroxyapatite nanoparticles obtained in this work.

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