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. Author manuscript; available in PMC: 2012 Jun 12.
Published in final edited form as: Acta Biomater. 2010 Jul 8;6(12):4657–4665. doi: 10.1016/j.actbio.2010.07.004

Figure 5.

Figure 5

(A) Nonlinear best-fit model for E on SHG signal skewness and matrix-derived TPF signal skewness. Markers indicate days in culture of the collagen gels and presence of GTA crosslinking. The inset on the right is a loglog plot of the data. (B) Nonlinear best-fit model for E on SHG signal speckle contrast and matrix-derived TPF signal speckle contrast. Markers indicate days (notation “d1” for day 1) in culture of the collagen gels and presence of GTA crosslinking. The inset on the right is a log-log plot of the data. Power-law best-fit exponents and R2 values are indicated in the figure. E was averaged from five measurements per gel for n = 16 gels.