Paper Title:
Porous Composite with Tunnel-like Interconnecting Pores of Hydroxyapatite with Magnetite Particles
  Abstract

Porous composites of magnetite / hydroxyapatite with bimodal pore size distribution were prepared by hydrothermal method. Magnetite particles of about 1 µm in size with polyhedral shape were dispersed into hydroxyapatite porous matrix. The hydroxyapatite particles were rod-shaped crystals and the size of crystals were about 10 µm in length with the aspect ratio of over 25. Rod-shaped hydroxyapatite crystals were locked together to make micro-pores of about 0.8 µm in size. In addition, macro-pores of about 400 µm in size were prepared by our unique method. Hydroxyapatite in this composite was non-stoichiometric hydroxyapatite with calcium deficient composition. This composite must have the advantage of adsorptive activity and osteoconductivity, because the hydroxyapatite has many specific crystal surface and micro-pores. The composites of magnetite / hydroxyapatite must be suitable for the hyperthermia therapy of cancer in bones.

  Info
Periodical
Key Engineering Materials (Volumes 309-311)
Main Theme
Edited by
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
Pages
1039-1042
DOI
10.4028/www.scientific.net/KEM.309-311.1039
Citation
K. Ioku, S. Murakami, T. Atsumi, B. Jeyadevan, E. H. Ishida, "Porous Composite with Tunnel-like Interconnecting Pores of Hydroxyapatite with Magnetite Particles ", Key Engineering Materials, Vols. 309-311, pp. 1039-1042, 2006
Online since
May 2006
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Price
$32.00
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