Structure and In Vitro Solubility of Silicon-Substituted Hydroxyapatite

Tomoko Kanaya; Kanji Tsuru; Satoshi Hayakawa; Akiyoshi Osaka; Eiji Fujii; Kouji Kawabata; Georgiana Gasqueres; Christian Bonhomme; Florence Babonneau

doi:10.4028/www.scientific.net/KEM.361-363.63

Paper Titles

Synthesis and Characterization of Mg-Containing Nano-Apatite
p.47

Influence of Association Type of Bisphosphonates with Calcium-Deficient Apatite on Drug Release
p.51

Optimisation of the Aqueous Precipitation Synthesis of Silicate-Substituted Hydroxyapatite
p.55

Synthesis of Si-Containing Tricalcium Phosphate and its Sintering Behavior
p.59

Structure and In Vitro Solubility of Silicon-Substituted Hydroxyapatite
p.63

Synthesis and Phase Stability of Silicate-Substituted α-Tricalcium Phosphate
p.67

Protein Adsorption Properties of Hydrothermally Prepared Hydroxyapatite
p.71

Vibrational Properties of Sodium Substituted β-Tricalcium Phosphate
p.75

Exchange Reactions at Calcium Phosphates Surface and Applications to Biomaterials
p.79

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Structure and In Vitro Solubility of Silicon-Substituted Hydroxyapatite

Abstract:

Hydroxyapatite (HAp) and Si-containing hydroxyapatite (SiHAp) particles were synthesized by a wet chemical method. Local structures around Si, P and H in the hydroxyapatites were analyzed by solid-state magic-angle spinning nuclear magnetic resonance spectroscopy. In vitro solubility of those SiHAp particles was evaluated by soaking them in acetic acid/acetate buffer solution (pH=4.0) at 36.5°C. As the Si content increased, the in vitro solubility of the SiHAp particles increased, while their crystallite size changed little.