Liposomes are spheres made of a dual lipid bilayer with an aqueous core where the active ingredients are held. They can be made in the laboratory starting from naturally derived lipids such as phosphatidylcholine-enriched lipids. This means that they will have minimal toxicity since the body won’t recognised them as “foreign” agents.
Liposomes are tiny, varying in size from 0.025 micrometers (µm) up to 2.5 µm. Yet, they are revolutionising the field of nanomedicine and drug delivery.