This book, The Era of Nanotechnology: Emergence and Essentials, presents a broad overview of the field of nanotechnology, focusing on key essentials, and delivers examples of applications in various fields. This book targets the future of nanotechnology in various industries and disciplines. It offers basic to advanced level study of the emerging developing and growing nanotechnology field by highlighting the key fundamentals and the application of advanced nanotechnology in real-life applications. The book looks at nanotechnology applications in a variety of fields, including health care, pharmaceutical sciences and drug delivery, nanomedicine, renewable energy, and more. The chapters offer some realistic examples and the latest research in the field of nanoscience and nanotechnology. With chapters written by internationally recognized experts that describe developments in the field of nanotechnology and nanostructured materials, this volume will provide a valuable resource for all involved in the study related to nanotechnology.