Table 4. The regression equations for the scaffold surface-to-volume ratio and the permeability as a function of the scaffold porosity (denoted as ∅ and ranged from 0.0 to 1.0).

	Surface-to-volume ratio [mm-1]	Permeability [10−7 m2]
Diamond	S/V = -3.87∅2 + 4.05∅ + 0.49 (R2 = 0.996)	k = 0.01 e5.05∅ (R2 = 0.992)
Gyroid	S/V = -3.52∅2 + 3.80∅ + 0.22 (R2 = 0.994)	k = 0.01 e4.87∅ (R2 = 0.991)
Schwarz P	S/V = -2.62∅2 + 2.73∅ + 0.24 (R2 = 0.995)	k = 0.01 e5.55∅ (R2 = 0.992)
F-RD	S/V = -6.16∅2 + 5.91∅ + 0.57 (R2 = 0.994)	k = 0.89∅2–0.48∅ + 0.07 (R2 = 0.995)
Fischer-Koch S	S/V = -5.98∅2 + 6.08∅ + 0.68 (R2 = 0.994)	k = 0.59∅2–0.29∅ + 0.04 (R2 = 0.996)
Cube	S/V = -3.26∅2 + 3.53∅+ 0.14(R2 = 0.995)	k = 0.01 e5.47∅ (R2 = 0.991)
FD-Cube	S/V = -4.33∅2 + 4.67∅ + 0.39(R2 = 0.995)	k = 1.25∅4.20 (R2 = 0.992)
Octa	S/V = -9.02∅2 +12.13∅ - 2.50(R2 = 0.995)	k = 0.01 e5.27∅ (R2 = 0.991)