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. Author manuscript; available in PMC: 2016 Jul 14.
Published in final edited form as: ACS Biomater Sci Eng. 2016 Feb 25;2(4):643–651. doi: 10.1021/acsbiomaterials.6b00036

Figure 2.

Figure 2

Final scaffold diameter in dry and hydrated states. The diameter changed with (A) the initial scaffold diameter, which is the inner diameter of the tube in which the gel is cast, and (B) the collagen concentration of the hydrogel solution (P < 0.0001). (C) The scaffold diameter varied significantly with freezing temperature in both dry (P = 0.0233) and hydrated states (P = 0.0088), with posthoc comparisons revealing only the differences between scaffolds frozen at −20 °C and snap frozen in liquid nitrogen were significant (P = 0.0195 for freeze-dried scaffolds, P = 0.0074 for hydrated scaffolds).