Simulations shed significant light on Janus particles

Named for a Roman god, Janus particles refer to nanoparticles that possess surfaces with two or more distinct physical chemical properties. The special nanoparticles were introduced to the scientific community by 1991 Nobel Prize winner Pierre-Gilles de Gennes, who pointed out that "objects with two sides of different wettability have the unique advantage of densely self-assembling at liquid-liquid interfaces," and consequentially, generating new colloidal structures.