Effect of alginate as polymer matrix on the characteristics of hydroxyapatite nanoparticles

Title
Effect of alginate as polymer matrix on the characteristics of hydroxyapatite nanoparticles
Author(s)
김석영손경단[손경단]양동준[양동준]김민성[김민성]강인규[강인규]김영진[김영진]
Keywords
BIOMIMETIC SYNTHESIS; IN-SITU; MORPHOLOGY; CERAMICS; NANO; BIOMATERIALS; COMPOSITES; SCAFFOLDS; BONE; GELS
Issue Date
201202
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS CHEMISTRY AND PHYSICS, v.132, no.2-3, pp.1041 - 1047
Abstract
Hydroxyapatite (HA) nanoparticles were prepared in the presence of alginate, which exhibited spherical shapes. The size of HA nanoparticles decreased with increasing the content of alginate. The HAs synthesized in the presence of alginate agglomerated, leading to the formation of the secondary particles with a size of hundreds nanometer and very narrow size distribution. Thermal treatment also affected the aggregation behavior and particle shape of HAs. The mixture of spherical and rod-like nanoparticles was observed by thermal treatment at 600 degrees C. FT-IR, XRD and XRF analyses confirmed that the stoichiometric HA nanoparticles could be synthesized with using alginate, in which the Ca/P molar ratio was ranged from 1.74 to 1.68. These HA nanoparticles showed the same crystalline phase with that of the stoichiometric HA after thermal treatment. In addition, the content of alginate contained in the products could affect the initial deposition rate of bone-like apatite on the surface of HA nanoparticles. (C) 2011 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/29877http://dx.doi.org/10.1016/j.matchemphys.2011.12.062
ISSN
0254-0584
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공과대학 > 신소재공학부 > Articles
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