United States. Working with polymers, scientists at Purdue University developed eco-friendly coatings, which can be applied in the industrial or domestic realm in order to create oil-resistant surfaces that can be cleaned with water.Polymer coatings, which can be applied to glass or concrete surfaces, are 20,000 times thinner than human hair and feature two layers: a polyethylene glycol base that attracts water, and a Teflon top that repels oil. In this way, if the oil has contact with a surface coated with the substance, it resists the attraction of the oil and when wiped with water the grease will disappear completely without the need to use detergents or solvents, which contributes to the environment.
