Abstract:Biological apatites (main constituent of natural bones) correspond to non‐stoichiometric hydroxyapatite HAp, presenting a large variety of ions as substituents (CO32−, F−, SiO44−, Mg2+, Na+…). The precise location and configuration of ionic substitutes in the HAp matrix are generally difficult to identify and characterize. This contribution details the structural characterization based on NMR data of a particular case of hydroxyapatite substitution by carbonates. For this purpose, all substitution mechanisms p… Show more
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