Table 1. The tensile modulus of 3D printed scaffolds.

Group	Young’s modulus of scaffolds (MPa)
PEGDA (LH)	0.839 ± 0.21
PEGDA (SH)	1.259 ± 0.197
PEGDA (LS)	1.425 ± 0.194$
PEGDA (SS)	2.016 ± 0.213#
PEGDA (SS)-RGDS	2.069 ± 0.206#
PEGDA (SS)-nHA	2.676 ± 0.194*
PEGDA (SS)-RGDS-nHA	2.633 ± 0.218*

LH: large hexagon; SH: small hexagon; LS: large square; and SS: small square. Data are mean ± standard error of the mean, n = 9. *p < 0.05, when compared to all other scaffolds. ^#p < 0.05, when compared to PEGDA (LH/SH/LS) scaffolds. ^$p < 0.05, when compared to the PEGDA (LH) scaffold.