The research community is interested in nanoparticles because of their distinctive and fascinating properties. This book was written for biomedical science students with a focus on drug delivery systems. This book explores biomedical science itself and how it relates to drug delivery studies and future nanoparticle applications. The primary objective of this book is to promote nanoparticle research, since it will help us understand how drugs work better at the presymptomatic, acute, and chronic stages of illness. This book covers a wide range of research and development, including the introduction and applications of nanoparticles as drug delivery. This book covers a wide introduction to nanoparticles in drug delivery, as well as a number of uses and characteristics. This book will be useful for researchers pursuing a masterâ s degree in nanomaterials and nanotechnology. Due to its thorough overview of recent literature, abbreviations, and summaries, this book also acts as a reference for academics and researchers. This book will be useful to researchers interested in a broad grasp of nanoparticles, fundamental principles, and a variety of applications in diverse fields, such as biological and sensing. This book blends fundamental information with contemporary advancements. I hope a lot of people read this book. If we want to avoid the mistakes made in the past, we must reverse course and begin utilizing the scientific knowledge base. We did not have this possibility a decade ago. The ideal moment is now.