[PDF] Top 20 Nanocrystalline apatites: From powders to biomaterials

... Non-stoichiometric nanocrystalline apatite powders are used to elaborate highly-bioactive ...arises from a structured but rather unstable hydrated layer involving ions in non- apatitic ... Voir le document complet

... due to inhomogeneous dihedral angles between the ...pressure to 5 nm zirconia nanocrystalline powders, formed by chemical vapour synthesis, resulted in green densities around ...sintered ... Voir le document complet

... order to evaluate in an in vivo situation the general biocompatibility of HA and FeHA, subcutaneous (intervertebral) implantations were realized in ...compared to FeHA, which is in perfect agreement with ... Voir le document complet

... adsorbed from the diluted solutions (0–12 mM) as function of the equilibrium concentration in the solution is plotted in ...deduced from the Langmuir ... Voir le document complet

... found to be BP concentration-dependent [272,273] , thus nanocrystalline apatite has been shown to be effective for loading and releasing BP at doses that can inhibit excessive bone resorption without ... Voir le document complet

... sponding to the final molar ratio Eu/(Ca + Eu) = 2% was used ...the nanocrystalline apatite precipitation was carried out in deionized water, at room temperature and pH ...9.5, from a mixture of ... Voir le document complet

... secreted from ameloblasts of epithelial origin, whereas bone and dentin form on a collagenous matrix deposited by cells of mesenchymal ...contrast to bone and dentin, both of which mineralize on preformed ... Voir le document complet

... attempts to functionalize the surface of apatite colloidal nanoparticles by introducing FA in the reacting mixture (either before or after the aging step), at a typical concentration of ...proved to be ... Voir le document complet

... nanocomposite powders as calculated from the MS measured at 80 K versus the reduction ...thought to be probable if the two M/M x O y systems are too far apart in the Elling- ham diagram that plots ... Voir le document complet

... 4b. To the best of our knowledge, this is the first ever obtained without any 43 Ca ...correlated to the columnar OH  groups at d iso ( 1 H) B0 ...related to this chemical shift can only be observed ... Voir le document complet

... of apatites can strongly vary and data obtained on well crystallized samples cannot be compared to those obtained on nanocrystalline ...of nanocrystalline apatites suggests that these ... Voir le document complet

... with apatites, in 1984, under the supervision of ...Back to Toulouse, he became Professor at INPT and began to work in the field of bio- materials on continuing his collaboration with ...belonging ... Voir le document complet

... leading to the formation of large crystals closer to stoichiometric apatite with a low ...leads to a decrease of the non- apatitic ...bone apatites during ageing. The study of the maturation ... Voir le document complet

... characterised nanocrystalline apatites [33,34] ...According to the model proposed by Gibbs, the adsorption of molecules at an interface involves a decrease of the interfacial energy and it may be ... Voir le document complet

... of nanocrystalline apatite [9,16,24,25,27] ; however, the “biomimetic” criteria are not always ...precipitation from supersaturated solutions like simulated body fluid (SBF) [16] ...solution to confer ... Voir le document complet

... temperatures from 60 to 400 °C for 2 h periods, Carlström et ...bound to enamel and concluded the existence of two different types: one “very loosely bound” that they attributed to the organic ... Voir le document complet

... adsorbed from the diluted solutions (0–12 mM) as function of the equilibrium concentration in the solution is plotted in ...deduced from the Langmuir ... Voir le document complet

... Comparison between TEM images of dried sols prepared with (Fig. 7) and without copolymer (Fig. 2c) reveals that the particle aggregation is slightly different. The objects observed on the as-syn- thesised boehmite have ... Voir le document complet

... able to absorb and retain large amounts of ...synthetic biomaterials, hydrogels closely resemble natural tissues due to their relatively high water content and soft and rubbery consistency, being ... Voir le document complet

... , from room temperature to 800 ...patterns to Joint Committee on Powder Diffraction Standards (JCPDS) files for AlO(OH), c -Al 2 O 3 and h-Al 2 O 3 ...Prior to analysis, 200–400 mg samples were ... Voir le document complet