TY - JOUR
T1 - Thermal and electron stimulated luminescence of natural bones, commercial hydroxyapatite and collagen
AU - Roman-Lopez, J.
AU - Correcher, V.
AU - Garcia-Guinea, J.
AU - Rivera, T.
AU - Lozano, I. B.
N1 - Funding Information:
We acknowledge the financial support of projects CICYT CGL2010-17108 of the Spanish Plan Nacional I+D+I, CICATA-IPN and scholarship 212733 of the CONACyT-México.
PY - 2014/2/24
Y1 - 2014/2/24
N2 - The luminescence (cathodoluminescence and thermoluminescence) properties of natural bones (Siberian mammoth and adult elephant), commercial hydroxyapatite and collagen were analyzed. Chemical analyses of the natural bones were determined using by Electron Probe Micro-Analysis (EMPA). Structural, molecular and thermal characteristics were determined by X-ray Diffraction (XRD), Raman spectroscopy and Differential Thermal and Thermogravimetric analysis (DTA-TG). Cathodoluminescence (CL) spectra of natural bones and collagen showed similar intense broad bands at 440 and 490 nm related to luminescence of the tetrahedral anion (PO4)3- or structural defects. A weaker luminescence exhibited at 310 nm could be attributed to small amount of rare earth elements (REEs). Four luminescent bands at 378, 424, 468 and 576 nm were observed in the commercial hydroxyapatite (HAP). Both natural bones and collagen samples exhibited natural thermoluminescence (NTL) with well-defined glow curves whereas that the induced thermoluminescence (ITL) only appears in the samples of commercial hydroxyapatite and collagen. Additional explanations for the TL anomalous fading of apatite, as a crucial difficulty performing dosimetry and dating, are also considered.
AB - The luminescence (cathodoluminescence and thermoluminescence) properties of natural bones (Siberian mammoth and adult elephant), commercial hydroxyapatite and collagen were analyzed. Chemical analyses of the natural bones were determined using by Electron Probe Micro-Analysis (EMPA). Structural, molecular and thermal characteristics were determined by X-ray Diffraction (XRD), Raman spectroscopy and Differential Thermal and Thermogravimetric analysis (DTA-TG). Cathodoluminescence (CL) spectra of natural bones and collagen showed similar intense broad bands at 440 and 490 nm related to luminescence of the tetrahedral anion (PO4)3- or structural defects. A weaker luminescence exhibited at 310 nm could be attributed to small amount of rare earth elements (REEs). Four luminescent bands at 378, 424, 468 and 576 nm were observed in the commercial hydroxyapatite (HAP). Both natural bones and collagen samples exhibited natural thermoluminescence (NTL) with well-defined glow curves whereas that the induced thermoluminescence (ITL) only appears in the samples of commercial hydroxyapatite and collagen. Additional explanations for the TL anomalous fading of apatite, as a crucial difficulty performing dosimetry and dating, are also considered.
KW - Cathodoluminescence
KW - Collagen
KW - Hydroxyapatite
KW - Natural bones
KW - Thermoluminescence
UR - http://www.scopus.com/inward/record.url?scp=84892374227&partnerID=8YFLogxK
U2 - 10.1016/j.saa.2013.10.027
DO - 10.1016/j.saa.2013.10.027
M3 - Artículo de revisión
C2 - 24210921
SN - 1386-1425
VL - 120
SP - 610
EP - 615
JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
ER -