Janus Particles: Synthesis, Self-Assembly, Physical Properties, and Applications

Some of the advancements in the field of non-centrosymmetric Janus particles (JP) along with the synthesis, self-assembly behavior, physical properties, and applications, are discussed. Researchers focus on describing biological, biobased, and bioinspired JPs, access routes based on classical organic synthesis, along with macromolecular engineering and self-assembly of polymers, symmetry breaking at interfaces, selective growth of second compartments, and symmetry-breaking in confined volumes. The researchers also discuss related techniques using the break-up or patterning of side-by-side flown liquids, and miscellaneous techniques. They inform that significant progress has been made in diversifying synthetic strategies for the preparation of JPs over a period of time with the aim to include diverse functionalities, target inorganic or organic hybrid materials, along with finding ways toward a scale-up.