Raman Spectroscopic Analyses of Jaw Periosteal Cell Mineralization

Figure 4

Loadings of PCA describe the mineralization for each patient. (a) PC 1, PC 2, and PC 3 loadings demonstrate strong influences of hydroxyapatite peaks (v₂, v₁) at 961 and 430 cm⁻¹ in the PCA of Raman spectra from patient #1 (Figure 3(a)). (b) PC 1, PC 2, and PC 4 loadings referring to the PCA of patient #2 (Figure 3(b)) exhibit the four major hydroxyapatite vibrations. (c) Loadings of PC 1, PC 2, and PC 3 validate that the Raman spectra of patient #3 exhibit signals from hydroxyapatite.

(a)

(b)

(c)