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XRD patterns of materials: (a) αTCP (αTricalcium Phosphate) powder, (b) Si-αTCP (silicon-doped αTricalcium Phosphate) powder, (c) hybrid hydroxyapatite/chitosan granules, (d) hybrid hydroxyapatite/chitosan granules containing gold nanoparticles, (e) material HT, (f) material Au-HT, and (g) material Au, Si-HT.
