Fabrication of carbonate apatite block from calcium sulfate by hydrothermal treatment

Shunsuke Nomura, Kanji Tsuru, Alireza Valanezhad, Shigeki Matsuya, Ichiro Takahashi, Kunio Ishikawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Carbonate apatite (CO3Ap) is expected to be an ideal bone substitute since it can harmonize with the bone remodeling cycle. The aim of this study is to fabricate a CO3Ap bone substitute from gypsum (calcium sulfate, CaSO4·2H2O) hardening bodies based on dissolution-precipitation reaction. Calcium sulfate hemihydrate mixed with water at a water-to-powder ratio of 0.5 was packed in a split stainless mold and kept at room temperature for 24 hours to obtain set CaSO 4·2H2O. The set CaSO4·2H 2O was hydrothermally treated in the presence of disodium hydrogen phosphate (Na2HPO4) and sodium hydrogen carbonate (NaHCO3). The results of powder X-ray diffraction and Fourier transform infrared spectroscopy indicated that CO3Ap block could be fabricated from the set CaSO4·2H2O block by hydrothermal treatment with Na2HPO4 and NaHCO3. When the treatment temperature was increased, the conversion rate to CO 3Ap increased. However, the carbonate content decreased with increasing treatment temperature.

Original languageEnglish
Title of host publicationBioceramics 23
Pages139-142
Number of pages4
DOIs
Publication statusPublished - Jan 1 2012
Event23rd Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2011 - Istanbul, Turkey
Duration: Nov 6 2011Nov 9 2011

Publication series

NameKey Engineering Materials
Volume493-494
ISSN (Print)1013-9826

Other

Other23rd Symposium and Annual Meeting of International Society for Ceramics in Medicine, ISCM 2011
CountryTurkey
CityIstanbul
Period11/6/1111/9/11

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Nomura, S., Tsuru, K., Valanezhad, A., Matsuya, S., Takahashi, I., & Ishikawa, K. (2012). Fabrication of carbonate apatite block from calcium sulfate by hydrothermal treatment. In Bioceramics 23 (pp. 139-142). (Key Engineering Materials; Vol. 493-494). https://doi.org/10.4028/www.scientific.net/KEM.493-494.139