Fig. 1. Time-lapse images of micromotors swimming in microfluidic chips containing chevrons of 40° (a), 116° (b) and 140° (c). The coloured arrows point to the micromotors approaching the chevron apex. Micromotors are confined at the apex of the trap for the 40° chevron (a), while no confinement is observed for 116° (b) and 140° (c).
