Researchers of Aalto University have developed surfaces where oil transports itself to desired directions. Researchers' oleophobic surfaces are microtextured with radial arrays of undercut stripes. When oil drops tumble on surfaces, drops move absent from the landing point to the direction set by asymmetric geometrical patterning of the surface. The surfaces open up current avenues for power-free liquid transportation and oil contamination self-removal applications in analytical and fluidic devices.
Source: phys.org