Figure 6
(a) Directional orientations of the fibroblasts on contact guidance with different groove depths. The angular and radial coordinates represent the cell orientation from \(0\) to \(90^\circ\) and the corresponding percentage cell population within the total population (each bin size is \(2^\circ\)). (b) The percentage population distribution of angular displacement (\(d\theta\), see graphical definition in inset and \(\delta\) represents a time interval) evaluated at four different time intervals (10, 50, 100, and 200 min). For (a,b), each column represents the results of different groove depths (left to right) from 0 to 1000 nm.
