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. 2019 Mar 21;16(3):237–251. doi: 10.1007/s13770-019-00184-0

Fig. 4.

Fig. 4

FTIR was used to detect amide I, II, III, A, B and phosphate bands. A FT-IR spectra of COL, COL/β-TCP and COL/β-TCP-Sr samples. B SEM images of the surface morphology of COL, COL/β-TCP and COL/β-TCP-Sr scaffolds. All the scaffolds had porous and interconnected structures