Nanotechnology deals with the manipulation of individual atoms and molecules, of size 1 to100 nanometre. This book provides a broad outlook of the origin and history ofnanotechnology, emergence of growth and its contribution to the various branches of science.Every chapter deals with the fundamentals, the technological revolution, the positive andnegative aspects of this new development and the future prospects. The book aims at providinga basic understanding of the subject for the beginners and researchers.