Nano Based Drug Delivery Systems presents a clear, structured, and application-oriented guide to one of the most dynamic areas of modern pharmaceutical science. Written for pharmacy students, researchers, teachers, and professionals, this book explains how nanoscale carriers improve drug solubility, stability, bioavailability, controlled release, and site-specific delivery.The book covers the fundamentals of nanotechnology and nanomedicine, including particle size, surface charge, zeta potential, polydispersity index, surface properties, and biological interactions. It then explores major nanocarrier platforms such as polymeric nanoparticles, liposomes, nanoemulsions, micelles, gold nanoparticles, magnetic nanoparticles, lipid-based systems, and hybrid carriers.Special attention is given to targeted drug delivery, cancer nanotechnology, diagnostic and imaging applications, disease-specific uses, formulation design, characterization techniques, advantages, limitations, toxicity, scalability, and regulatory challenges.With its balanced blend of scientific principles and pharmaceutical applications, this book helps readers understand nanotechnology concepts and their practical importance in developing safer, more effective, and more precise drug delivery systems.Comprehensive, student-friendly, and academically focused, Nano Based Drug Delivery Systems is a valuable reference for anyone seeking a strong foundation in nanopharmaceutical technology and advanced drug delivery.