REVIEW OF ADVANCEMENT IN MICROENCAPSULATION TECHNIQUES AND IT'S APPLICATIONS

Mahadev Govindrao Tate* and Gayatri Mohan Saini

ABSTRACT

Microencapsulation is a rapidly expanding technology. It is one of the quality preservation techniques of sensitive substances and a method for production of materials with new valuable properties. There are different techniques available for the encapsulation of drug. The encapsulation efficiency of the microparticle or microsphere or microcapsule depends upon different factors like concentration of the polymer, solubility of polymer in solvent, rate of solvent removal, solubility of organic solvent in water, etc. Microencapsulation is described as a process of enclosing micron-sized particles of solids or droplets of liquids or gasses in an inert shell, which in turn isolates and protects them from the external environment. This review covers encapsulation materials, physics of release through the capsule wall, techniques of preparation, recent advancements, application of microcapsules and all evaluation parameters for microcapsules.

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