We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
SILICON RELEASE FROM HYDROXYAPATITES IN WATER AND SIMULATED BODY FLUID.
- Authors
CADAR, OANA; FRANGOPOL, PETRE T.; TOMOAIA, GHEORGHE; OLTEAN, DANIEL; PALTINEAN, GERTRUD A.; MOCANU, AURORA; HOROVITZ, OSSI; TOMOAIA-COTISEL, MARIA
- Abstract
Nanostructured hydroxyapatite (HAP) and silicon substituted hydroxyapatites (HAP-Si), with 0.47 and 2.34 wt% Si, were prepared by wet precipitation method. Their structure was investigated by X rays diffraction (XRD), FTIR spectroscopy, energy dispersive X ray (EDX) spectroscopy and their images were obtained by TEM, SEM and AFM. Their behavior in water and SBF was investigated by inductively coupled plasma optical emission spectrometry (ICP-OES) for an immersion time from 1 to 90 days. While Ca and P release from HAP is very low, the presence of Si enhances greatly their release in water, along with a continuous and long lasting Si release. In simulated body fluid, SBF, Ca, P and Mg are removed from the solution, by the formation of a new HAP enriched in Mg, while silicon is released as in water. Thus, Si doped HAP might have advantageous applications as bone and tooth materials.
- Subjects
HYDROXYAPATITE; SILICON; BODY fluids; X-ray diffraction; WATER chemistry; FOURIER transform infrared spectroscopy; PRECIPITATION (Chemistry)
- Publication
Studia Universitatis Babes-Bolyai, Chemia, 2017, Vol 62, Issue 4,Tom1, p67
- ISSN
1224-7154
- Publication type
Article
- DOI
10.24193/subbchem.2017.4.06