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Fig. 3 Raman spectra for the composite materials of the TS.

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Presentation on theme: "Fig. 3 Raman spectra for the composite materials of the TS."— Presentation transcript:

1 Fig. 3 Raman spectra for the composite materials of the TS.
Raman spectra for the composite materials of the TS. (A) FT-Raman spectra of two regions of the text side of a TS fragment. a.u., arbitrary units. (B) Confocal micro-Raman at 785-nm spectra of the TS composites. I: Collagen spectrum; collagen spectra inside the TS always contain a nitrate peak at 1043 cm−1. II: Sulfate spectrum of particles with Na, S, and Ca constituents. III: Unidentified particles distributed throughout the inorganic surface layer, which yielded very resonant Raman signals with 785-nm laser excitation. (C) Distribution map of the particles on the surface of the inorganic layer, which were resonant for Raman excitation at 785 nm. Roman Schuetz et al. Sci Adv 2019;5:eaaw7494 Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).


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