Scaleable Production of Janus Particles

C. Sosa, R.D. Priestley, R.K. Prud’homme
Princeton University, US

Keywords: janus, nanoparticles, pickering emulsions, polymer, self-assembly


Janus particles, named after the two-faced Greek God, Janus, have two distinct faces with distinct chemistries and surface properties. Janus particles offer exciting possibilities as Pickering emulsion stabilizers, media for layered coatings, and templates for metallic nanostructures. While there have been a multitude of publications showing novel applications, the field has been hampered by the inability to produce Janus particles in a scalable way. We have developed a large scale synthesis process based on rapid precipitation. The phenomena governing the self assembly will be described.