Microencapsulation Technology
Microencapsulation technology refers to the use of natural or synthetic
polymeric compound materials to make capsule wall shells (films) in which
drugs (synthetic, semi-synthetic, biological products) are encapsulated in a
capsule membrane and released at a controlled rate only under specific
conditions. This technique has no effect on the original chemical properties of
the drug, and the drug is released for therapeutic purposes by some external
stimulation or slow release. Microcapsules generally have a diameter of 1 to
500 μm and a wall thickness of 0.5 to 150 μm. Microcapsules have the ability
to improve and enhance the appearance of substances and their properties,
store microscopic substances, delay and control release, and protect the core
material from the environment, reduce toxicity, and shield it from odors.
Preparation Options for Microcapsules
