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. 2017 Mar 30;3(4):338–348. doi: 10.1021/acscentsci.7b00039

Figure 1.

Figure 1

HBP hydrogel mechanical properties. Rheological profiles of 10% (w/v) PEG hydrogels: 4-arm PEG acrylate 0%, 25%, 50%, 75%, and 100% HBP hydrogels at 37 °C. (A) Mean gelation times at fixed 1 Hz and fixed 0.0001 strain in minutes. (B) HBP hydrogel mean storage modulus (G′) and loss modulus (G″) compared with literature values for mouse heart tissue from frequency sweeps at 8 Hz, fixed 0.01 strain, and (C) HBP hydrogel mean storage modulus (G′) and loss modulus (G″) from strain sweeps at 0.02–0.4 strain, fixed 8 Hz. Error bars represent one standard deviation, *p < 0.05 comparison with 25% HBP, **p < 0.001 comparison with 100% HBP, ****p < 0.0001 comparison with 25%, 50%, 75%, and 100% HBP.