Movie S2.

Actin filaments exploring the {2, 5, 9} device. The movie shows a time lapse of 200 typical fluorescence micrographs of actin filaments (shown in white) moving through a network (shown in blue) encoding the SSP with the set {2, 5, 9}. Exits labeled with green numbers represent correct results, and magenta numbers represent incorrect results. Below each exit, the number of actin that has arrived there is shown in white. The image of the network was obtained from an optical micrograph of the device and cropped to fit to the fluorescence image. Blurred objects passing over the network are actin filaments floating by in the solution. A background subtraction and contrast enhancement was performed evenly across the images with the use of ImageJ (imagej.nih.gov/ij/).