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. Author manuscript; available in PMC: 2011 Sep 13.
Published in final edited form as: Biomacromolecules. 2010 Sep 13;11(9):2336–2344. doi: 10.1021/bm100465q

Figure 7.

Figure 7

Modulation of mechanical properties of PEG-CMP9 hydrogels by addition of free CMP9 that can compete for triple helix formation. (A) Ensemble-average MSDs with SEM error bars (n > 100) shown for PEG-CMP9 hydrogels (10 wt%) before and after addition of 40 μL of 27.2 mM free CMP9 solution or H2O (control experiment). (B) Corresponding storage (G′) and loss (G″) moduli (ω = 30 Hz) for ensemble-average MSDs. (C) Corresponding α exponents determined by fitting the ensemble-average MSDs to <Δr2(τ)> ~ kτα.