CARRIER PARTICLES

摘要

A carrier particle (10) is arranged in use to encapsulate and carry a payloa d molecule (4) to a target biological environment, and comprises an internal cavity (8) in which a payload molecule (4) is contained. The cavity (8) is surrounded by a perm-selective hydrogel layer (6), and the payload molecule (4) is capable of being active when the particle (10) is at least adjacent t he target biological environment.