They are currently gaining popularity because of their special applications due to their unique physical properties.
Nanotextured surfaces are in various forms like cones, columns, or fibers.
These are water, ice, oil, and microorganism repellent that is superamphiphobic, anti-icing, and antifouling respectively and thus self-cleaning.
[1] In research published online October 21, 2013, in Advanced Materials, of a group of scientists at the U.S. Department of Energy's Brookhaven National Laboratory (BNL), led by BNL physicist and lead author Antonio Checco, proposed that nanotexturing surfaces in the form of cones produces highly water-repellent surfaces.
[2][3] Cyril R. A. John Chelliah, Cyril R. A. John Chelliah, Rajesh Swaminathan, Rajesh Swaminathan, "Pulsed laser deposited hexagonal wurzite ZnO thin-film nanostructures/nanotextures for nanophotonics applications," Journal of Nanophotonics 12(1), 016013 (13 February 2018).