It is used to encapsulate specific substances, small vesicles with certain permeability in the size of micron. The prepared materials usually include macromolecule, lipid, etc. The encapsulated substance is relatively isolated from the external environment, which is conducive to maintaining its properties and allowing for specific material exchange with the outside world. As a carrier, it is widely used in organisms such as drug controlled release, cell and enzyme immobilization, etc
Biomedical materials -> Drug carrier materials