The Infrared and Raman Spectra of β-and α-Tricalcium Phosphate (Ca3(Po4)2)

Jillavenkatesa, A.; Condrate, R. A.

doi:10.1080/00387019808007439

Cited by 156 publications

(82 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A more accurate description of 427 the infrared spectra of the as-synthesized SiHA powders is available in a complementary 428 article [95]. [52,96]. This result is complementary to the X-ray diffraction pattern (Fig.…”

supporting

confidence: 73%

Accurate characterization of pure silicon-substituted hydroxyapatite powders synthesized by a new precipitation route

et al. 2013

View full text Add to dashboard Cite

show abstract

supporting

confidence: 73%

Accurate characterization of pure silicon-substituted hydroxyapatite powders synthesized by a new precipitation route

et al. 2013

View full text Add to dashboard Cite

show abstract

“…683, 798, 870 cm -1 ) or tricalcium phosphate (e.g. 495, 567, 945, 1013, 1025 or 1055 cm -1 [13]) is detected. The surface of the HA and Si 0.5 HA pellets are monophasic and free of crystalline or amorphous second phases.…”

Section: Resultsmentioning

confidence: 99%

Physico-Chemical Characterization and In Vitro Biological Evaluation of Pure SiHA for Bone Tissue Engineering Application

Marchat

Bouet

Ludeckgen

et al. 2012

KEM

View full text Add to dashboard Cite

Abstract. Studies about silicon-substituted hydroxyapatites exhibit several shortcomings that leave unanswered questions regarding the properties and subsequent biological outcomes generated by this biomaterial. Firstly, samples characterization is often incomplete, meaning that phase purity on the pellet surface is not assured. In fact, ceramic materials used in literature that are claimed to be pure are actually polluted through second phase as superficial polymerized silicate.In this study, we have successfully synthesized a phase-pure silicon hydroxyapatite powder Ca 10 (PO 4 ) 5.5 (SiO 4 ) 0.5 (OH) 1.5 (Si 0.5 HA) compressed this powder into pellets, sintered them, and evaluated the biological response of osteoblast cells (C3H10 line) seeded on the pellet surface. Besides, the solubility in aqueous media of HA and Si 0.5 HA pellets were determined through "static" experiments. These tests attempt to provide a comprehensive picture of the cellular response to the SiHA material, in order to determine the mechanism by which Si evokes the improved in vitro biological outcomes described in the literature. Results revealed first an equivalent solubility of Si 0.5 HA and HA pellets, and second that cells do not react favourably to the pure SiHA surface.

show abstract

“…ž Spectra of various orthophosphates have their strongest peaks from ¾963-974 cm 1 , as expected. 28,29 This is shown by the elongated cluster on the left side of the score plot. ž CePO 4 , a species unambiguously present in many of the spectra, appeared as a main constituent in the first PC.…”

Section: Discussionmentioning

confidence: 99%

“…This is consistent with orthophosphates showing their strongest peaks in this wavenumber region. 28,29 The loading plot also suggests that we can disregard most of the other wavenumbers since they are clustered around 0. Another PCA was thus performed using the region 875-1150 cm 1 , comprising 225 wavenumbers instead of 408.…”

Section: /9912 CMmentioning

confidence: 99%

Principal component analysis of Raman spectra from phosphorus-poisoned automotive exhaust-gas catalysts

O׳Neill

2005

J. Raman Spectrosc.

View full text Add to dashboard Cite

Raman spectra from real-world, phosphorus-poisoned automotive catalysts can be remarkably complicated, owing to the fact that factors such as variable driving conditions, catalyst formulations, and oil and fuel additives can contribute to the formation of a huge variety of compounds. To classify the Raman spectra from many catalysts without necessarily identifying all phosphorus contaminants, principal component analysis was performed. Examination of the scores in the PC1-PC2 plane showed that samples with similar spectra are grouped together while dissimilar ones are spaced apart from one another. The score plot also confirmed that the strongest peaks of orthophosphates generally lie close to one another. Examination of the loadings revealed that CePO 4 , and possibly Ca 10 (OH) 2 (PO 4 ) 6 and BaSO 4 , are among the major components present in the spectra. CePO 4 is readily observed in many of the spectra, but Ca 10 (OH) 2 (PO 4 ) 6 is not, showing that principal component analysis was useful in uncovering possible spectral constituents difficult to unambiguously assign from the original spectra. The spectra can be adequately reproduced using eight principal components, which means that a much smaller set of numbers can be used to represent the spectra instead of typical wavenumber-intensity data.

show abstract

The Infrared and Raman Spectra of β-and α-Tricalcium Phosphate (Ca₃(Po₄)₂)

Cited by 156 publications

References 10 publications

Accurate characterization of pure silicon-substituted hydroxyapatite powders synthesized by a new precipitation route

Accurate characterization of pure silicon-substituted hydroxyapatite powders synthesized by a new precipitation route

Physico-Chemical Characterization and <i>In Vitro</i> Biological Evaluation of Pure SiHA for Bone Tissue Engineering Application

Principal component analysis of Raman spectra from phosphorus-poisoned automotive exhaust-gas catalysts

Contact Info

Product

Resources

About