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  • Title: High-resolution transmission electron microscopy study of nanostructured hydroxyapatite.
    Author: Biggemann D, da Silva MH, Rossi AM, Ramirez AJ.
    Journal: Microsc Microanal; 2008 Oct; 14(5):433-8. PubMed ID: 18793487.
    Abstract:
    Crystalline properties of synthetic nanostructured hydroxyapatite (n-HA) were studied using high-resolution transmission electron microscopy. The focal-series-restoration technique, obtaining exit-plane wavefunction and spherical aberration-corrected images, was successfully applied for the first time in this electron-beam-susceptible material. Multislice simulations and energy dispersive X-ray spectroscopy were also employed to determine unequivocally that n-HA particles of different size preserve stoichiometric HA-like crystal structure. n-HA particles with sizes of twice the HA lattice parameter were found. These results can be used to optimize n-HA sinterization parameters to improve bioactivity.
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