Figure 4.

Cell-contact topography is different in the two spreading modes. (a) Denoised IRM images for cells in serum-free media, and (b) in serum containing media. (c) Heat map showing intensity fluctuations relative to shot noise for cells in serum-free media. (d) Heat map showing intensity fluctuations relative to shot noise for cells in serum containing media. (e) Population histograms of relative fluctuation amplitudes, $\stackrel{⌢}{u}$, in serum-free and (f) in serum. Note: The color bars in both cases represent fluctuation amplitudes relative to shot noise. Scale bars, 5 μm; n = 15 for each condition.