Analysis of apatite layers on glass-ceramic particulate using FTIR and FT-Raman spectroscopy
✍ Scribed by Rehman, I. ;Karsh, M. ;Hench, L. L. ;Bonfield, W.
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 208 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0021-9304
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✦ Synopsis
A nucleation and crystallization schedule was adapted to produce 40% crystalline Bioglass ceramic particulates. These particles were placed in a dynamic environment in a simulated physiologic solution (SBF-9) for time periods ranging from 10 min to 7 days. Fourier transform Raman spectroscopy (FT-Raman) and infrared spectroscopy (FTIR) were used to analyze the apatite layer formation on the particulates. FTIR determined that amorphous apatite formation took place within 2 h, with the appearance of crystalline apatite in 14 h. The vibrational frequencies obtained through FT-Raman were equivalent to those obtained using FTIR. These analyses showed that a fully crystallized apatite layer was present on the particulate after 3 days of exposure in SBF solution. These findings are consistent with those associated with amorphous Bioglass particles.