Figure 3
Hard component of the bone and its correlation with hydroxyapatite. (a) 2D map of Brillouin frequency shift of the hard component of the bone. (b) Intensity of the phosphate Raman peak normalized to the intensity of the proline Raman peak. Correlation between Brillouin frequency shift and Raman peaks of hydroxyapatite components – phosphate, carbonate, and OH groups – are shown in (c–e), respectively. Pearson correlation coefficients are reported in the insets. (f) Relative Brillouin intensity of hard component versus normalized intensity of proline Raman peak. Different colours are used for data obtained from the different regions of the bone outlined in Fig. 1.
