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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Acta Biomater. 2017 Dec 12;67:42–52. doi: 10.1016/j.actbio.2017.12.007

Figure 4.

Figure 4

(A) Storage modulus of 5% 8-arm w/v PEG-VS (n=3), PEG-Ac (n=3), and PEG-Mal (n=3) with NVP and without RGD modification after 6 minutes exposure to UV light and (B) Degradation over 60 days in PBS of 8-arm 5% w/v PEG-VS (n=5), PEG-Ac (n=5), and PEG-Mal (n=4) hydrogels with NVP and without RGD modification after 6 minutes exposure to UV light. “*” indicate statistical significance (p<0.05). Significance was determined by a Welch two-sample t-test.