Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones
© 2018 Walter de Gruyter GmbH, Berlin/Boston 2018. Bones mostly consist of composite materials based on almost equivalent volume fractions of mineral (apatite) and organic (collagen) components. Accordingly, their infrared spectroscopic properties should reflect this composite nature. In this letter...
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| Format: | Journal Article |
| Language: | English |
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MINERALOGICAL SOC AMER
2018
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/76339 |
| _version_ | 1848763672057348096 |
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| author | Aufort, Julie Lebon, M. Gallet, X. Ségalen, L. Gervais, C. Brouder, C. Balan, E. |
| author_facet | Aufort, Julie Lebon, M. Gallet, X. Ségalen, L. Gervais, C. Brouder, C. Balan, E. |
| author_sort | Aufort, Julie |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018 Walter de Gruyter GmbH, Berlin/Boston 2018. Bones mostly consist of composite materials based on almost equivalent volume fractions of mineral (apatite) and organic (collagen) components. Accordingly, their infrared spectroscopic properties should reflect this composite nature. In this letter, we show by theory and experiment that the variability of the strong phosphate bands in the ATR-FTIR spectra of a series of modern and archeological bone samples can be related to electrostatic interactions affecting apatite particles and depending on the bone collagen content. Key parameters controlling the shape of these bands are the mineral volume fraction and the dielectric constant of the embedding matrix. The magnitude of these effects is larger than the one related to microscopic changes of the apatite structure. Consequently, the interplay of microscopic and macroscopic parameters should be considered when using FTIR spectroscopy to monitor the preservation state of bioapatite during diagenetic and fossilization processes, especially during the degradation of the organic fraction of bone. |
| first_indexed | 2025-11-14T11:07:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-76339 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:07:11Z |
| publishDate | 2018 |
| publisher | MINERALOGICAL SOC AMER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-763392019-09-25T07:34:22Z Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones Aufort, Julie Lebon, M. Gallet, X. Ségalen, L. Gervais, C. Brouder, C. Balan, E. Science & Technology Physical Sciences Geochemistry & Geophysics Mineralogy ATR-FTIR spectroscopy bone fossilization electrostatic properties Biomaterials-Mineralogy Meets Medicine INFRARED-SPECTROSCOPY DIAGENESIS BIOMINERALS CRYSTALS APATITE ENAMEL © 2018 Walter de Gruyter GmbH, Berlin/Boston 2018. Bones mostly consist of composite materials based on almost equivalent volume fractions of mineral (apatite) and organic (collagen) components. Accordingly, their infrared spectroscopic properties should reflect this composite nature. In this letter, we show by theory and experiment that the variability of the strong phosphate bands in the ATR-FTIR spectra of a series of modern and archeological bone samples can be related to electrostatic interactions affecting apatite particles and depending on the bone collagen content. Key parameters controlling the shape of these bands are the mineral volume fraction and the dielectric constant of the embedding matrix. The magnitude of these effects is larger than the one related to microscopic changes of the apatite structure. Consequently, the interplay of microscopic and macroscopic parameters should be considered when using FTIR spectroscopy to monitor the preservation state of bioapatite during diagenetic and fossilization processes, especially during the degradation of the organic fraction of bone. 2018 Journal Article http://hdl.handle.net/20.500.11937/76339 10.2138/am-2018-6320CCBYNCND English https://creativecommons.org/licenses/by-nc-nd/3.0/ MINERALOGICAL SOC AMER fulltext |
| spellingShingle | Science & Technology Physical Sciences Geochemistry & Geophysics Mineralogy ATR-FTIR spectroscopy bone fossilization electrostatic properties Biomaterials-Mineralogy Meets Medicine INFRARED-SPECTROSCOPY DIAGENESIS BIOMINERALS CRYSTALS APATITE ENAMEL Aufort, Julie Lebon, M. Gallet, X. Ségalen, L. Gervais, C. Brouder, C. Balan, E. Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones |
| title | Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones |
| title_full | Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones |
| title_fullStr | Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones |
| title_full_unstemmed | Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones |
| title_short | Macroscopic electrostatic effects in ATR-FTIR spectra of modern and archeological bones |
| title_sort | macroscopic electrostatic effects in atr-ftir spectra of modern and archeological bones |
| topic | Science & Technology Physical Sciences Geochemistry & Geophysics Mineralogy ATR-FTIR spectroscopy bone fossilization electrostatic properties Biomaterials-Mineralogy Meets Medicine INFRARED-SPECTROSCOPY DIAGENESIS BIOMINERALS CRYSTALS APATITE ENAMEL |
| url | http://hdl.handle.net/20.500.11937/76339 |