Drug Delivery Systems (DDS)

Drug delivery system refers to a technical system that comprehensively regulates the distribution of drugs in the body in terms of space, time and dosage. It improves the health of patients by enhancing the delivery of therapeutic drugs to their target sites and minimizing accumulation outside the target. Compared with traditional drug delivery systems based on conventional oral tablets, capsules, intravenous injections, inhalation preparations and transdermal patches, new drug delivery systems refer to systems that use new drug delivery technologies with overall high technical barriers (such as drug delivery technologies based on liposomes, nanoparticles, microspheres, exosomes, engineered AAV vectors, 3D printed drug preparations, etc.) to deliver various types of drugs. New drug delivery systems can improve the efficacy of drugs and reduce toxic side effects by adjusting the delivery and release sites of drugs, changing the metabolic behavior of drugs in the body, improving the sustained-release and controlled-release properties of drugs, and the properties of penetrating physiological barriers (such as the blood-brain barrier).