 An efficient routine has been reported for making linear low-density polyethylene superhydrophobic and thus self-cleaning; 99% of dirt deposited on such a surface is easily washed away.Patterned superhydrophobic surfaces also have the promises for the lab-on-a-chip, microfluidic devices and can drastically improve the surface based bioanalysis.In the textile industry, superhydrophobicity refers to static roll-off angles of water of 20° or less.