Fig. 7From: Designing of PLA scaffolds for bone tissue replacement fabricated by ordinary commercial 3D printerFTIR-IR spectrum of PLA. The CH3 group resonance was detected as peak at 2925 cm−1 and 1274 cm−1. The C = O group resonance was observed at 1756 cm−1, and carboxyl group was observed at 1090 cm−1 Back to article page