Editor's choice: wettability

The study of wettability examines the behaviour of liquid droplets on a solid surface; intermolecular interactions within and between the materials determine the hydrophobicity of the surface. Applications of materials with modified wettability are as varied as crude oil recovery, waterproofing, microfluidics, and antibacterial coatings. This collection brings together research into the wetting properties of materials, along with their potential applications.