FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations.

FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Research Abstract Details 

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FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Abstract Text:

Llew Rintoul,Edeline Wentrup-Byrne,Shuko Suzuki,Lisbeth ,

Fluoro substituted hydroxyapatite (FHAp) samples were prepared by a cyclic pH method. Both calcined and uncalcined samples were subjected to elemental analysis (F, Ca, P) and X-ray diffraction (XRD) analysis to verify composition and phase purity. Good correlation between a-axis parameters and fluoride ion content was found for calcined samples, however, for uncalcined samples the fluoride ion content was higher than estimated from the a-axis values. Fourier transform infra red (FT-IR) spectroscopy analysis of the calcined samples showed OH band shifts and splitting in accordance with F-HO interactions affecting the OH vibration. We conclude that the OH libration (620-780 cm(-1) range) is more suited for estimation of fluoride ion content than the OH stretching. In contrast, uncalcined samples all displayed FT-IR spectra similar to that of hydroxyapatite (HAp) despite the presence of fluoride ions (18-73%). FT-IR emission spectroscopy was used to probe the changes occurring in the FT-IR spectra of HAp and FHAp samples upon heating. Interpretation of the spectral changes occurring during heating to 1,000 degrees C and subsequent cooling is given. Room temperature spectra of samples heated to various temperatures was used to determine the temperature necessary to produce FT-IR spectra displaying the expected OH bands. A model accounting for the combined observations is proposed.

FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Publishing Authors By Initials

L Rintoul,E Wentrup-Byrne,S Suzuki,L ,

For similar investigative techniques: clinical laboratory techniques: culture techniques: tissue engineering research abstracts see: investigative techniques: clinical laboratory techniques: culture techniques: tissue engineering research

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FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of materials science. Materials in medicin

VOLUME: 18

Page Numbers: 1701-9

Journal Abbreviation:

ISSN: 0957-4530

DAY: 5

MONTH: 05

YEAR: 2007

FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Information

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LANGUAGE: eng

NlmUniqueID: 9013087

FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Keywords Mesh Terms:

KEYWORDS: Tissue Engineering

MESH TERMS: chemistry

Chemical & Substance for Abstract: FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations. Information

Substance Name: Hydroxyapatites

Registry Number: 0

Grant and Affiliation Information for FT-IR spectroscopy of fluoro-substituted hydroxyapatite: strengths and limitations.

AFFILIATION: Tissue BioRegeneration and Integration Program, Science Research Centre, Queensland University of Technology, Brisbane, QLD, Australia.

Country: United States

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MEDLINETA: J Mater Sci Mater Med

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