Fabrication of carbonate apatite foam based on the setting reaction of α-tricalcium phosphate foam granules. Issue 1 (January 2016)

• Record Type: Journal Article
• Authors: Sugiura, Yuki; Tsuru, Kanji; Ishikawa, Kunio
• Is Part Of: Ceramics international. Volume 42:Issue 1:Part A(2016)
• Page Start: 204
• Page End: 210
• Publication Date: 2016-01
• Subjects: CO3Ap foam -- Hydrothermal treatment -- α-TCP -- Morphology; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.08.081
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Carbonate apatite (CO3 Ap) foam has attracted attention as a bone substitute and scaffold for tissue regeneration. In this study, the feasibility of fabricating CO3 Ap foam was evaluated on the basis of the setting reaction of α-tricalcium phosphate (α-TCP) foam granules. CO3 Ap foam was formed when α-TCP foam granules were treated hydrothermally at 200 °C in the presence of NaHCO3 solution for 24 h. The precipitated CO3 Ap crystals interlocked with each other to form the CO3 Ap foam. The CO3 Ap formed in high NaHCO3 containing solution was considered to be a B-type CO3 Ap, which is the CO3 Ap found in bones and contained 0.85 mass% CO3 . When the α-TCP foam granules were treated at higher NaHCO3 solution, the content of the CO3 in the apatitic structure increased and changed the morphology of the CO3 Ap from fiber-like to plate-like with a smaller aspect ratio; thus, the setting ability disappeared.