| Bone mineral change during experimental heating: an X-ray scattering investigation. | |
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MedLine Citation:
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PMID: 14568425 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of heating and burning on bone mineral have previously been studied using techniques such as X-ray diffraction (XRD) with the aim of discerning a characteristic signature of crystal change. This would enable a better understanding of alteration to bone mineral during heating, which would in turn impact on the preparation and use of natural bone hydroxyapatite as a biomaterial resource. In addition, this knowledge could prove invaluable in the investigation of burned human remains from forensic and archaeological contexts in cremation and funerary practice. Here we describe a complementary method, small-angle X-ray scattering (SAXS), to determine more accurately the changes to bone crystallite size and shape during an experimental heating regimen. Samples were subjected to controlled heating at 500 degrees C, 700 degrees C, or 900 degrees C for 15 or 45 min. Our results show bone crystallites begin to alter in the first 15 min of heating to 500 degrees C or above. They then appear to stabilise to a temperature-specific thickness and shape with prolonged heating. While the samples heated to lower temperatures or for shorter periods produce XRD traces showing little alteration to the apatite, corresponding information obtained from SAXS shows an early, subtle change in crystal parameters. |
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Authors:
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J C Hiller; T J U Thompson; M P Evison; A T Chamberlain; T J Wess |
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Publication Detail:
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Type: Evaluation Studies; In Vitro; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Biomaterials Volume: 24 ISSN: 0142-9612 ISO Abbreviation: Biomaterials Publication Date: 2003 Dec |
Date Detail:
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Created Date: 2003-10-21 Completed Date: 2004-08-03 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8100316 Medline TA: Biomaterials Country: England |
Other Details:
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Languages: eng Pagination: 5091-7 Citation Subset: IM |
Affiliation:
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Department of Optometry and Vision Sciences, Biophysics Group, University of Cardiff, Redwood Building, Cathays Park, Cardiff CF10 3NB, UK. j.c.hiller@stir.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Bone Density* / radiation effects* Bone and Bones / chemistry*, radiation effects* Crystallization / methods* Durapatite / analysis, chemistry*, radiation effects* Hot Temperature* Molecular Conformation Sheep Temperature X-Ray Diffraction / methods* |
| Chemical | |
Reg. No./Substance:
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1306-06-5/Durapatite |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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