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. Author manuscript; available in PMC: 2016 Mar 15.
Published in final edited form as: Acta Biomater. 2015 Jan 10;15:164–172. doi: 10.1016/j.actbio.2015.01.005

Figure 2.

Figure 2

SEM (left panels) and TEM (right panels) of collagen-gelatin mixture films with variation in composition. Compositions shown are before neutralization, corresponding to initial state in Figure 3a.