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. Author manuscript; available in PMC: 2015 Jan 26.
Published in final edited form as: Biomaterials. 2012 Oct 13;34(1):42–54. doi: 10.1016/j.biomaterials.2012.09.053

Figure 6.

Figure 6

AC alignment on unpatterned and patterned substrates. A–B) ACs demonstrate typical morphology on unpatterend polymers (A), but elongate and align on patterned polymers (B). C) The alignment angle (mean±SE) of ACs on unpatterned substrates is statistically different from the alignment angle on patterned substrates (*p < 0.005, Mann-Whitney Rank Sum test). The number in each bar represents the number of ACs measured. D) Representation of the cumulative percent of ACs at or below the angle relative to the pattern direction indicated in the x-axis. 55% of ACs align to the pattern (angle of 10° or less) and greater than 90% of ACs are within 30° or less of the pattern direction. Micropatterns used for AC alignment have periodicities of 50 μm and channel amplitudes of 3 μm.