To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 RICM movies of T cells haptotaxis assay on patterned ICAM-1 substrates. In green: cell adhesion patch shown by RICM; In red: patterned stripes with modulated ligand density; In grey: bright-field images showing cell body. Scale bar=20μm J Cell Sci ; doi: 10.1242/jcs.242883 Download Original Video