Microencapsulation Using Coacervation/Phase Separation: An Overview of the Technique and Applications

Microcapsules are small particles (liquids, solids, solutions, or dispersions) that contain an ac­ tive substance coated by synthetic or natural polymers of varying thickness. Generally the active substance is called core and the coating is called wall material. Different configurations of mi­ crocapsules are shown in Fig. 1.