Abstract
Interconnected set porous-calcium phosphate cement (set porous-CPC), which has fully interconnected pores could be an ideal bone substitute. In this study, set porous-CPC consisting of (α-tricalcium phosphate (α-TCP) beads and acidic calcium phosphate solution was developed and its basic setting reaction was studied. When (α-TCP beads were exposed to the acidic calcium phosphate solution, brushite (CaHPO4∙2H2O) was formed on the surface of the (α-TCP beads. The formed brushite crystals interlocked with each other, resulting in a setting reaction of (α-TCP microspheres within 10 min at 37°C. As a result of this setting reaction, a fully-interconnected calcium phosphate macroporous structure was obtained. The set porous-CPC were immersed into simulated body fluid (SBF) at 37oC for different immersion time, The result clearly showed that brushite surface layer transformed to apatite layer after 3 days immersion into SBF solution by dissolution-precipitation reaction. Since apatite layer show excellent tissue response, the set porous-CPC would be a promising biomaterial used as artificial bone substitutes, and as the scaffold for tissue engineering.
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© 2015 Springer International Publishing Switzerland
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Kien, P.T., Kanji, T., Ishikawa, K. (2015). Development and Characterization of Porous Calcium Phosphate Cement Using α-Tricalcium Phosphate Bead. In: Toi, V., Lien Phuong, T. (eds) 5th International Conference on Biomedical Engineering in Vietnam. IFMBE Proceedings, vol 46. Springer, Cham. https://doi.org/10.1007/978-3-319-11776-8_125
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DOI: https://doi.org/10.1007/978-3-319-11776-8_125
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-11775-1
Online ISBN: 978-3-319-11776-8
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