Researchers from Rice University and Rensselaer discovered that graphene is essentially invisible to water: when a single layer of graphene is used to cover silicon or most metals - there is almost no change in the water behavior when compared to a silicon without a graphene coating.

The researchers explain that "A drop of water sitting on a surface 'sees through' the graphene layers and conforms to the wetting forces dictated by the surface beneath. It’s quite an interesting phenomenon unseen in any other coatings and once again proves that graphene is really unique in many different ways".

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