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Table 2 Effect of pre-gelation storage time at 4°C on the visco-elastic properties of the hydrogel

From: Rheological and biological properties of a hydrogel support for cells intended for intervertebral disc repair

storage time

0 h

24 h

72 h

measurement #

1

2

3

number of hydrogels

13

5

6

mean G'[Pa]

265.2

377.8

187.7

standard deviation

158.1

78.1

156.4

measurement #

4

5

6

number of hydrogels

13

5

6

mean G''[Pa]

39.7

28.9

25.0

standard deviation

22.6

10.3

9.8

  1. Storage modules G' and loss modules G" were determined from hydrogels produced immediately after preparing the gel components (0 h), and after storing the liquid gel components for 24 h or 72 h at 4°C. Mean value comparison using ANOVA showed no difference of storage modules between measurements # 1 - 3 and no difference of loss modules between measurements # 4 - 6 (P < 0.05)