A Review on Techniques Use in Microencapsulation of Drug Molecules

Microencapsulation is a process by which very tiny droplets or particles of liquid or solid material are surrounded or coated with a continuous film of polymeric material. In order to improve bioa-vailability, stability, control release, and target delivery of active pharmaceutical ingredients (APIs), as well as to mask their bitter taste, to increase their efficacy, and to minimize their side ef-fects, a variety of microencapsulation technologies have been widely used in the pharmaceutical industry. Commonly used microencapsulation technologies are emulsion, coacervation, centrifugal extrusion, spray drying, sol-gel encapsulation, solvent evaporation, pan coating, supercritical fluid encapsulation and polymerization. The main objective of this article is taking a look at microencap-sulation as a novel drug delivery system. This approach has been used in amazing fields like phar-maceutical, agriculture, textile, food, printing and defence.