The book is about the application of nanotechnology in the field of medicine, with a focus on diagnosis and therapy. The first few chapters introduce the basics of material engineering and nanobiomedicine, followed by chapters on different types of engineered nanomaterials and their surface modification strategies for biomedicine. The book then covers the application of nanobiomedicines and nanodiagnostics in clinical settings, and how functionalized nanomaterials can be used in microfluidic biosensors and diagnosis devices. The latter half of the book discusses various nanobiomaterials used in cancer diagnosis and therapy, as well as regenerative medicine, infectious diseases, and bioimaging. The book concludes with a chapter on the commercial aspects of nanobiomedicines.