Abstract
Porous composites of magnetite / hydroxyapatite with bimodal pore size distribution were prepared by hydrothermal method. Magnetite particles of about 1 μrn 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.
| Original language | English |
|---|---|
| Pages (from-to) | 1039-1042 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 309-311 II |
| DOIs | |
| Publication status | Published - 2006 Jan 1 |
| Externally published | Yes |
Keywords
- Composite
- Hydrothermal
- Hydroxyapatite
- Hyperthermia
- Magnetite
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering