Lotus leaf inspires scientists to create world's first self-cleaning metals

"Taking their ideas from defence mechanisms found in plants such as the lotus leaf, the 'High Throughput Laser Texturing of Self-Cleaning and Antibacterial Surfaces', or 'TresClean' project, has made a breakthrough that will enable the production of self-cleaning sheet metal on an industrial scale for the first time..."

Resource:

http://phys.org/news/2016-06-lotus-leaf-scientists-world-self-cleaning.html