With applications ranging from medical diagnostics to environmental monitoring, molecular sensors and emerging nanotechnologies offer valuable tools and unlimited possibilities for engineers and scientists to explore the world. New generation of functional microsystems can provide a variety of small-scale sensing, imaging, and manipulation techniques to fundamental building blocks of materials. This book offers comprehensive coverage of current and emerging molecular sensing technologies, explaining the principles of molecular sensor design and assessing available sensor types. After explaining basic sensor structures and sensing principles, the authors explain nano/micro fabrication techniques, including MEMS, BioMEMS, and MicroTAS. Miniaturization of versatile molecular sensors establishes a new design paradigm and a range of novel biotechnologies, illustrated by case studies of groundbreaking applications in the life sciences and elsewhere. The authors also cover implantability, biocompatibility, and the regulatory framework.The book is aimed at engineering professionals, life scientists, and students of biomedical engineering. It explains essential principles of electrical, chemical, optical, and mechanical engineering as well as biomedical science. In addition, it is valuable for medical professionals and researchers. An online tutorial developed by the authors reinforces learning for students and professionals alike. The book reviews state-of-the-art molecular sensors and nanotechnologies; Explains principles of sensors and fundamental theories and offers homework problems; demystifies vertical integration from nanomaterials to devices design; covers recent progress in state-of-the-art sensor technologies; Includes case studies of important commercial products; and covers implantability, biocompatibility, and the regulatory framework.