Figure 4

The size histogram and the eccentricity of A549 on the three different substrates. (a) to (c) The size histogram (area in μm²) and (d) to (f) the eccentricity, which are produced by CellProfilerx^TM, of immobilized A549 cells (phalloidin-stained 532 nm) on planar glass, QNP arrays, and SiNW arrays, respectively, using laser microarray scanner (both green 532 nm and red 635 nm) after 0.5 to 45 h of incubation at 37°C. The eccentricity is defined by the ratio of the distance between the foci of the ellipse and its major axis length.