TABLE I.
Mechanical measurements of gels acquired using oscillatory rheology show that gel mechanics do not statistically differ over longer incubation times. The mechanical properties of gel samples do not greatly change over the longer incubation times utilized in time series experiments and remain within the same order of magnitude. Standard error of the mean is shown in a parenthesis for each measurement. ANOVA significance testing (not shown) reveal no statistically significant difference over time for all parameters. (N = 3).
| Gel type | Incubation time (h) | G′ Pa (sem) | G″ Pa (sem) | Yield strain | Yield stress Pa (sem) | Toughness ( |
|---|---|---|---|---|---|---|
| 8% acrylamide, 0.48% BIS | 1 | 6120(499) | 834(111) | 0.173(0.034) | 621(189) | 62(24) |
| 3 | 7671(226) | 819(28) | 0.135(0.026) | 700(128) | 52(16) | |
| 6 | 8265(309) | 765(29) | 0.116(0.007) | 678(32) | 40(4) | |
| 3% acrylamide, 0.03% BIS | 1 | 28(4) | 4.6(1) | 1 | 515(35) | 258(18) |
| 3 | 32(1) | 2.5(0.4) | 1 | 449(15) | 225(7) | |
| 6 | 35(3) | 4.7(1) | 1 | 485(22) | 242(11) |