Abstract

Nanoparticle drug delivery systems (NDDS) have emerged as a transformative approach in modern medicine, providing enhanced therapeutic efficacy, controlled release, and targeted delivery of drugs. These systems use nanoparticles, typically ranging from 1 to 100 nanometers, to encapsulate therapeutic agents, improving their bioavailability and reducing side effects. This article explores the mechanisms of nanoparticle-based drug delivery, highlighting their advantages in drug targeting, sustained release, and overcoming biological barriers. The article also discusses the various types of nanoparticles used for drug delivery, their applications in cancer therapy, and the challenges and future directions in the development of nanoparticle drug delivery systems.