Paraffin-infused porous graphene film (PIPGF) with programmable wettability

In materials science, the surface wettability of a biomaterial can be measured using the surface water contact angle as an important characterization of its hydrophilicity or hydrophobicity. The technique has attracted remarkable attention in recent years for materials development in the areas of energy, healthcare and environmental science. Bioinspired surfaces have been engineered with a variety of functionalities and special properties of wettability to mimic nature.