Moiré pattern evolution (IMAGE)
Caption
Schematic illustration of the moiré pattern evolution under the influences of external forces and torques for a circularly shaped colloidal cluster interacting with a periodically structured surface. Regions where the particles of the cluster are close to the bottom of the wells of the patterned surface appear as dark-coloured regions in the respective moiré patterns. The width of the arrows represents the amount of force and/or torque required to overcome the static friction between cluster and surface.
Credit
© Andrea Silva and Xin Cao.
Usage Restrictions
May be used by the press.
License
Original content