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This book conveys together the principles, theory, and practice of nanotechnology, serve as a textbook for beginners in the field of nanoscience and nanotechnology. Nanoscience and nanotechnology involve the ability to see and to control individual atoms and molecules. Everything on Earth is made up of atoms—the food we eat, the clothes we wear, the buildings and houses we live in, and our own bodies. Today’s scientists and engineers are finding a wide variety of ways to deliberately make materials at the nanoscale to take advantage of their enhanced properties such as higher strength, lighter weight, increased control of light spectrum, and greater chemical reactivity than their larger-scale counterparts. Truly revolutionary nanotech products, materials and applications, such as nanorobotics, are years in the future.