Figure 1.

Hydrolysis of PEG-norbornene hydrogel scaffolds without hMSCs. (a) Bulk rheological measurements of the elastic moduli, G′, as a function of time throughout degradation. (b) Normalized elastic moduli, $G^{\prime }/G_0^{\prime }$, as a function of time. This data is fit to eq 2, resulting in a hydrolysis kinetic constant, k_h = 7.5 × 10⁻³ ± 7.1 × 10⁻⁴ h⁻¹.