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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Ali, M. A. |
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| Azevedo, Nuno Monteiro |
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Vuković, Marina
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- 2024Development of luminescent bioactive glass for multimodal diagnostic imaging
- 2022Optically active SrGd2O4 phase: Yb3+/Ho3+ and Yb3+/Tm3+ co-doping
- 2022Hydroxyapatite grafting with alanine amino acid - efficiency of different methods
- 2020Macroporous monoliths based оn natural mineral sources, clay аnd diatomitecitations
- 2019Influence of Gd3+ doping on the NaYF4 :YB3+,ER3+ structural and up-conversion properties
- 2018Effects of Gd3+ co-doping on NaYF4:Yb,Er nanoparticles structure
- 2017Porous ceramics based on natural mineral sources
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document
Hydroxyapatite grafting with alanine amino acid - efficiency of different methods
Abstract
Hydroxyapatite (HAp) attracts great attention due to application in reconstructive medicine for hard tissues, mostly bones and teeth, where it is declared to be highly biocompatible material. Its grafting with amino acids further increases biocompatibility and has crucial importance for acceptance of body implants. In this work different methods of grafting were investigated: simple mixing, thermal treatment induction and in situ synthesis/grafting reactions. Two amino acid precursors were separately tested in grafting procedures: pure alanine and alanine methyl ester hydrochloride. The efficiency of grafting was determined based on X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and thermal analyses (DSC, TG/DTA) of obtained powders, while complementary UV-VIS spectroscopy of supernatants was additionally performed for quantitative determination of non-grafted nitrogen using ninhydrin standardized procedure.