Oleophobic Surfaces - Anti-Graffiti Demo is a hands on cart demonstration for spontaneous, 3-10 minute interactions with visitors. The visitors will explore several surfaces that display oleophobic properties due to material science research at the nano scale. Coatings can preserve, protect, lubricate, grip, and a myriad of other behaviors. For example, walls can be coated with material that when dry, will prevent the adhesion of paint or ink. In this demonstration, we're examining coatings that are oleophobic, "oil hating," and prevent low surface tension liquids from adhering to it.
This activity developed by NNIN explores how nanotechnology can be used to change the properties of a copper surface so that it either attracts or repels water. It is appropriate for middle school and high school students.