Table 2. Comparison of average storage (G′) and loss moduli (G″) of swelling hydrogels at frequency of 0.42 Hz.

		0 h	4 h	24 h	48 h	96 h	7 days
G′ (×103 Pa)	Purified	39.2 ± 13.4	31.2 ± 13.0	14.0 ± 5.93	17.2 ± 6.86	20.3 ± 2.26	16.3 ± 3.51
	Unpurified	16.0 ± 6.10	16.8 ± 5.47	18.1 ± 8.23	19.6 ± 3.04	4.18 ± 0.11	1.76 ± 0.12
G″ (×103 Pa)	Purified	34.5 ± 4.88	20.2 ± 5.83	12.2 ± 4.21	11.7 ± 1.84	13.3 ± 1.18	12.7 ± 1.11
	Unpurified	9.72 ± 4.20	7.94 ± 1.37	5.95 ± 1.43	4.21 ± 1.14	2.45 ± 0.04	1.13 ± 0.05