Abstract

The structure of native Champsocephalus gunnari icefish otoliths, scales, teeth, bones and pristine hydroxyapatite (HA) were examined using Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy. NEXAFS Cls-absorption spectra of the selected icefish hard tissues indicate that otoliths contain anion [CO3]2-. NEXAFS P2p-spectra clearly indicate the absence of phosphorus atoms only within otoliths and scales samples. However, the icefish teeth and bones P2p-spectra demonstrate identical spectral feature typical for the HA. NEXAFS Ca2p-spectra of the icefish hard tissues studied also shows features, which are in good correspondence with HA spectra. Interestingly, there is a red shift ≈ 0.1 eV of the 2p1/2,3/2 → 3d transition energies in NEXAFS Ca2p-spectra of teethes and bones of the C. gunnari in comparison to HA.

Details

Title
Comparative NEXAFS study of the selected icefish hard tissues and hydroxyapatite
Author
Petrova, O V 1 ; Nekipelov, S V 2 ; Sivkov, D V 1 ; Mingaleva, A E 1 ; Nikolaev, A 3 ; Frank-Kamenetskaya, O V 3 ; Bazhenov, V V 4 ; Vyalikh, D V 5 ; Molodtsov, S L 4 ; Sivkov, V N 1 ; Ehrlich, H 6 

 Institute of Physics and Mathematics, Komi Science Centre Ural Division, RAS, 167982, Syktyvkar, Russia 
 Institute of Physics and Mathematics, Komi Science Centre Ural Division, RAS, 167982, Syktyvkar, Russia; Syktyvkar State University, Syktyvkar, Russia 
 Institute of Earth Sciences, Department of Crystallography, St. Petersburg State University, St. Petersburg, Russia 
 Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg, Germany; European XFEL GmbH, Albert-Einstein-Ring 19, 22761 Hamburg, Germany 
 IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain; Departamento de Fisica de Materiales and CFM-MPC UPV/EHU, Donostia International Physics Center (DIPC), 20080 SanSebastian, Spain 
 Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg, Germany 
Publication year
2017
Publication date
Nov 2017
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2574471589
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.