Nanoparticle drug delivery systems

This invention describes a way to deliver anticancer drugs directly to cancer cells using tiny fat-based spheres called liposomes. These liposomes are designed to carry the drug and also have special tags, like peptides or antibodies, on their surface that help them find and attach to specific cancer cells. The liposomes are built from common fats, a special fat that helps them avoid the body's defenses, and the targeting tag attached via a flexible chain.