Superamphiphobic coatings

Self-cleaning surfaces have existed in nature for a long time. Microstructures on lotus leaves lead to a strong water repellency and ensure that water drops roll off while dragging down dirt with them. This effect is much more difficult to achieve with oily substances. Lately, new surfaces have been developed which not only repel water, but also oil and even human blood. New applications, such as a solvent-free synthesis of polymeric particles or the production of more efficient gas membranes, may become possible.