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. Author manuscript; available in PMC: 2019 May 11.
Published in final edited form as: Acta Biomater. 2018 Aug 28;79:202–215. doi: 10.1016/j.actbio.2018.08.029

Fig. 3.

Fig. 3.

HB-PEGDA/HA hydrogel properties. (A) Real-time chemical cross-linking rheological measurements at different HB-PEGDA concentrations of 2.5%, 5% and 10% (with 1% HA at 25 °C). Insets show the same data on a log10 scale of G′ and G″. (B) All hydrogels with a different polymer concentration reached a steady state and maintained their weight for the swelling test at 37 °C (n = 3). (C) The storage modulus (G′) of the hydrogel with different HB-PEGDA concentrations at 25 °C (D) The average G′ and loss modulus (G″) over the frequency ranging from 0.1 to 10 rad s−1 with a constant strain of 0.05 at 25 °C (r = 1:1). A higher polymer concentration enhanced the mechanical properties of the hydrogel (n = 3). *P < 0.05.