Fusion‐Induced Structural and Functional Evolution in Binary Emulsion Communities

Abstract The biomimetic dynamic behaviours of emulsions are receiving increasing attention from the broad scientific community; however, the spatiotemporal control and functionalization of emulsions based on simple fusion‐induced method is rarely mentioned. A design for protein‐stabilized oil‐in‐water droplets and phospholipid‐stabilized oil‐in‐water droplets is described and a substance‐diffusion‐mediated fusion mechanism proposed within these two different emulsion communities. Significantly, a range of fusion‐induced high‐order behaviours were successfully demonstrated including competitive fusion, fusion‐induced evolution in membrane complexity, and diversified structures with the formation of Janus or various patchy morphologies, fusion‐induced membrane maturation, as well as fusion‐induced multifunctionalization with a directional motility behaviour. These results highlight the fusion‐induced diverse dynamic behaviours in complex emulsions communities and provide a platform for advancing versatile applications of emulsions.