Table 4.

Contractile strength of hydrogel samples with n = 4. Samples are grouped by the ratio of PEGDA to AA and by the overall concentration for statistical comparisons. (* indicates a statistically significant difference when compared to the 1:4 PEGDA:AA and 1:8 PEGDA:AA groups with p < 0.05).

Hydrogel Sample	Contractile Stress (Pa)	Hydrogel Sample	Contractile Stress (Pa)
1:4 PEGDA:AA	347 ± 43	0.9 g/mL	536 ± 152
1:8 PEGDA:AA	461 ± 88	1.8 g/mL	699 ± 131
1:12 PEGDA:AA	594 ± 71*	2.7 g/mL	612 ± 88
1:16 PEGDA:AA	592 ± 47*	3.6 g/mL	646 ± 111