Novel Bioceramics of Calcium Phosphates Composed of Rod-shaped Particles

Koji Ioku, Giichiro Kawachi, Kazuhiko Nakahara, Emile Hideki Ishida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Fb-Tricalcium phosphate (ß-Ca3(PO4)2: ß-TCP) is one of the most biocompatible materials with human bones and teeth. The difference in microstructure has a large effect on the reaction of ß-TCP in vivo. Therefore micro-pores, as well as macro-pores, must be controlled for porous material design, although the size of micro-pores is too small for cells. In this paper, porous granules of ß-TCP with micro-pores of about 0.1 mm in size were prepared from porous hydroxyapatite (Ca10(PO4)6(OH)2: HA) granules with calcium deficient composition synthesized by hydrothermal method. The ß-TCP granules with about 40 %-60 % porosity were composed of rod-shaped particles of about 10-20 mm in length. Rod-shaped particles were locked together to make micro-pores, and the size of micro-pores formed by tangling of rod-shaped particles was about 0.1-0.5 mm. The particle size, shape, and the micro-pore size were controlled by our unique method.

Original languageEnglish
Pages (from-to)136-137
Number of pages2
JournalJournal of Hard Tissue Biology
Issue number2
Publication statusPublished - 2005 Jan
Externally publishedYes


  • bioceramics
  • calcium phosphate
  • hydrothermal
  • hydroxyapatite

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Biochemistry
  • Biomaterials
  • Orthopedics and Sports Medicine
  • Dentistry(all)
  • Cell Biology


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