Self cleaning surface made by laser
Using an ultra fast femtosecond laser on plastic surface, PhD studentMax Groenendijk of the Applied Laser Technology Group of the Universityof Twente (Netherlands) got remarkable results.
The Lotus leaves present numerous tiny pillars with a wax layer on top,which keep water droplets away, mold them into a spherical shape,impeding them to cover the surface.
This way, dirt particles cannot stick to the surface through water. The researchers wanted to make a similar surface, but without using wax.
The light pulses are so short that they can be seen as light bullets with which the surface is bombed.
Source: news.softpedia.comAdded: 7 February 2007