Preparation and characterization of calcium phosphate nanorods using reverse microemulsion and hydrothermal processing routes

Lim, H.N. and Kassim, A. and Huang, N.M. (2010) Preparation and characterization of calcium phosphate nanorods using reverse microemulsion and hydrothermal processing routes. Sains Malaysiana, 39 (2). pp. 267-273. ISSN 0126-6039,

[img]
Preview
 PDF
Preparation_and_characterization_of_calcium_phosphate_nanorods_using_reverse_microemulsion_and_hydrothermal_processing_routes.pdf - Published Version
Download (1MB)

Abstract

Brushite (BR) and hydroxyapatite (HA) nanoparticles were fabricated through reverse microemulsion and hydrothermal processing route, respectively. The processing routes influenced nucleation and crystal growth although both methods resulted in nanorods formation. The calcium-to-phosphate ratio was 1.67, similar to that of natural bone and teeth. X-ray diffraction patterns revealed that the nanorods possessed almost pure crystal phase with negligible second phase. The ratio of particle length-to-width of BR and HA were approximately 3 and 4, respectively. To mimic the natural bone, chitosan/brushite (CTS/BR) and chitosan/hydroxyapatite (CTS/HA) nanocomposite scaffolds were prepared through rapid freeze-drying technique. The compressive strength of CTS/BR and CTS/HA nanocomposite scaffolds was compared for the first time. The compression test revealed that both the nanocomposite scaffolds exhibited reasonably high compressive strength of approximately 7 MPa. This value falls in the high-end range of cancellous bone's compressive strength, with the compressive strength of CTS/HA 0.88 MPa more than CTS/BR.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Calcium phosphate nanoparticles Compressive strength Crystal growth Hydrothermal Microemulsion
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: miss munirah saadom
Date Deposited: 14 Jan 2013 10:02
Last Modified: 19 Mar 2019 08:54
URI: http://eprints.um.edu.my/id/eprint/5335

Actions (login required)

View Item View Item
UM Research Repository is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.