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Micrographs of PEUU/collagen scaffold (a) surface and (b) cross section, where the scaffold was made from a 5% PEUU solution, a PEUU/collagen ratio of 80:20, and a quenching temperature of −80°C. For comparison, in Figure 1e and f micrographs of a scaffold made from 10% PEUU solution are seen where the same PEUU/collagen ratio and quenching temperature was used.
