High strength porous PLA gyroid scaffolds manufactured via fused deposition modeling for tissue-engineering applications

Gyroid polylactic acid (PLA) scaffolds with different unit cell sizes of 2 ​mm (G2), 2.5 (G25), and 3 (G3) were fabricated via fused deposition modeling for bone tissue engineering applications. The porosity the PLA ranged from 86% to 90%. structural anisotropy value was 3.80, 2.00, 1.04 G2, G25, G3, respectively. Compressive test results indicated that both dense porous showed elastic-plastic deformation behavior in building transverse directions. compressive elastic modulus yield strength 118–180 ​MPa 2–8 direction 106–138 2.5–6.0 direction, tensile 51–63 1.5–4.5 11–17 1–5 gyroid significantly higher values (up three times) compared other structures reported literature. can be anticipated as promising scaffold biomaterials applications by virtue their bone-mimicking structure good mechanical properties.