TY - GEN
T1 - Structure of substituted hydroxyapatite
T2 - 8th World Biomaterials Congress 2008, WBC 2008
AU - Bonhomme, C.
AU - Babonneau, F.
AU - Gervais, C.
AU - Pourpoint, F.
AU - Gasqueres, G.
AU - Hayakawa, S.
AU - Osaka, A.
PY - 2008/12/1
Y1 - 2008/12/1
N2 - We have shown that the combination of advanced solid state NMR experiments [7] and ab initio calculations of NMR parameters can lead to a novel description of substituted HAp structures. In the case of silicate substitution, the anions located within the structure are unambiguously characterized by selective 1H → 29Si CP transfer and 31P → 29Si experiments can edit the 29Si MAS spectra in terms of 31P/29Si dipolar interaction. 2D heteronuclear interactions will be performed in a near future. In the case of carbonate substituted HAp, the study of the 1H → 13C dynamics allowed to fully characterize the various 13C sites. By combining NMR calculations starting from DFT models and experiments, distributions of A-, B- and A/B sites were clearly characterized.
AB - We have shown that the combination of advanced solid state NMR experiments [7] and ab initio calculations of NMR parameters can lead to a novel description of substituted HAp structures. In the case of silicate substitution, the anions located within the structure are unambiguously characterized by selective 1H → 29Si CP transfer and 31P → 29Si experiments can edit the 29Si MAS spectra in terms of 31P/29Si dipolar interaction. 2D heteronuclear interactions will be performed in a near future. In the case of carbonate substituted HAp, the study of the 1H → 13C dynamics allowed to fully characterize the various 13C sites. By combining NMR calculations starting from DFT models and experiments, distributions of A-, B- and A/B sites were clearly characterized.
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M3 - Conference contribution
AN - SCOPUS:84869036862
SN - 9781615670802
T3 - 8th World Biomaterials Congress 2008
BT - 8th World Biomaterials Congress 2008
Y2 - 28 May 2008 through 1 June 2008
ER -