. 2018 Feb 16;10(12):9969–9979. doi: 10.1021/acsami.8b01294

Table 3. Tensile Testing of PEG–PCL-DA Hydrogel^*^,#.

polymers	concentrations (%)	initial modulus (kPa)	tensile strength (kPa)	breaking strain (%)	suture retention (N/mm²)	instant recovery (%)
PEG–PCL(24k)-DA	40	37.7 ± 1.7^a	34.5 ± 2.5^a	150 ± 14^a	0.32 ± 0.06^a	100 ± 1^a
	20	16.4 ± 4.8^b	18.7 ± 4.3^b	165 ± 25^a,b
	10	9.4 ± 1.9^c	10.8 ± 2.6^c	202 ± 27^b
PEG–PCL(22k)-DA	40	28.2 ± 2.4^a	25.3 ± 2.1^a	145 ± 17	0.20 ± 0.02^b	99 ± 1^a
	20	10.7 ± 1.3^b	12.3 ± 1.1^b	160 ± 12
	10	5.5 ± 0.6^c	8.6 ± 1.0^c	176 ± 21
PEG-DA	40	6.0 ± 1.2^a	4.2 ± 1.2^a	187 ± 27^a	0.15 ± 0.01^c	97 ± 1^b
	20	1.4 ± 0.3^b	1.2 ± 0.2^b	102 ± 15^b
	10	-^##	-^##	-^##

a, b, c represent significantly different groups for each characteristic. ^#The tensile testing of hydrogels was carried out after immersion in PBS for 24 h. The suture retention and instant recovery were measured for hydrogels at a concentration of 40%. ^##The PEG-DA-10% hydrogel was too weak to be loaded on the MTS machine.

Table 3. Tensile Testing of PEG–PCL-DA Hydrogel*,#.

Table 3. Tensile Testing of PEG–PCL-DA Hydrogel^*^,#.