Study of the Structure of Mammoth Tusk by IR Spectroscopy

We studied the structure of the mammoth tusk by infrared spectroscopy, including after heat treatment. The entire complex of functional groups of the tusk components—hydroxyapatite, collagen, and water—was revealed. Collagen is represented in the IR spectrum by the characteristic absorption bands of...

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Bibliographic Details
Published inOptics and spectroscopy Vol. 130; no. 3; pp. 207 - 213
Main Authors Pavlova, V. V., Petukhova, E. S., Isakova, T. A., Kolesova, E. S., Chirikov, A. A., Protopopov, F. F.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2022
Springer Nature B.V
Subjects
Absorption spectra
Biomedical materials
Collagen
Functional groups
Heat treatment
Hydroxyapatite
Infrared spectroscopy
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
mammoth tusk
collagen
hydroxyapatite
heat treatment
infrared spectroscopy
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Summary:We studied the structure of the mammoth tusk by infrared spectroscopy, including after heat treatment. The entire complex of functional groups of the tusk components—hydroxyapatite, collagen, and water—was revealed. Collagen is represented in the IR spectrum by the characteristic absorption bands of amide and aliphatic groups. After heat treatment at 600°C, the organic part is completely removed from the sample. Hydroxyapatite occurs in the tusk bone tissues in a carbonate-substituted form; the heat treatment at 900°C removes the carbonate anion and water from the sample, transiting hydroxyapatite from a nonstoichiometric state to a stoichiometric one.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X22030110