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. Author manuscript; available in PMC: 2019 May 7.
Published in final edited form as: Soft Matter. 2019 Mar 19;15(13):2798–2810. doi: 10.1039/c9sm00105k

Fig. 1.

Fig. 1

(a) Schematic representation of the protocol. Cells are first cultured overnight on a segment of the micropatterned lines restricted by a block of PDMS (left), and then the block is removed and the cells are free to invade the fibronectin substrate. (b) Snapshot of a monolayer 16 hours after the start of the experiment. The white arrow indicates the location of the front at t = 0, that is when recording starts. (c and d) Maps showing the velocity components along x (c) and y (d), averaged over an hour around the instant shown in (b). The color scales are linear between blue and red, ranging from -0.6 μm/min to 0.6 μm/min for (c), and from -0.3 μm/min to 0.3 μm/min for (d).