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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: J Mech Behav Biomed Mater. 2014 Aug 1;39:146–161. doi: 10.1016/j.jmbbm.2014.07.016

Figure 4. Volumetric image analysis by multi photon microscopy revealed the 2D nature of the problem.

Figure 4

Multi photon imaging of isotropic (c) and very anisotropic (9.0 m/s) (d) dry PEUU, the materials were scanned along the thickness every 10 μm, n≥6 different samples were utilized. a, b Main angle of orientation and OI were quantified, showing constant values for both the main angle theta and the OI across the material depth. This result proved that the materials modeled in this work can be modeled as 2D structures. As expected, OI values were higher for the anisotropic than the isotropic PEUU. Conversely, the theta st.d. were higher in the isotropic samples than in the very anisotropic samples.