Biosimilars and Pharma Innovations

Encapsulated Drugs

Encapsulation is commonly used in drug delivery systems to protect a particular drug and form a shell that prevents it from leaching out before reaching the target site. The shell is usually composed of a hydrogel matrix or polymer nanostructures that can encapsulate the target drug. Of them, nanocapsules and nanospheres are the most common. Whereas vesicular nanocapsules typically immerse the drug in a liquid core surrounded by a solidified polymer shell, nanospheres are solid / bulk polymer matrices in which the drug is encapsulated within or on the structural surface.