Nanocarriers are a type of drug delivery system that utilize nanoparticles to encapsulate and transport drugs to specific targeted areas in the body. These nanoparticles can be made from a variety of materials, such as lipids, polymers, or metals, and can be designed to release their cargo in a controlled manner once they reach their destination. Nanocarriers offer several advantages over traditional drug delivery methods, such as increased drug stability, improved bioavailability, and reduced side effects. Research in this area focuses on developing new and improved nanocarriers, understanding their interactions with biological systems, and optimizing their therapeutic efficacy for a wide range of applications, including cancer treatment, infectious disease management, and personalized medicine.