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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Integr Biol (Camb). 2014 Feb;6(2):127–142. doi: 10.1039/c3ib40188j

Figure 6.

Figure 6

A) Characteristic scanning electron micrographs of bovine collagen type-I matrices of varying density. B) Matrix void space was found to decrease at higher collagen densities and C) to correlate with contractility for all culture configurations and ambient oxygen conditions tested. D) Storage modulus was found to increase with collagen density and E) to correlate with contractility for all culture configurations and ambient oxygen conditions tested. F) Oxygen transport and G) diffusion coefficients of 40 and 70 kDa FITC-dextran molecules were not found to differ amongst hydrated collagen gels of varying densities. * denotes statistical significance, student's T test, p<0.01.