Green Sources in Eco-nanotechnology provides a broad overview on the applicability of nanotechnology and the associated risks of various nanomaterials. The book presents safe, economic and eco-friendly methods and natural sources that prevent or reduce possible risks for the environment and human health. New concepts and principals of clean nanotechnology derived from nature-eco-nanotechnology-are introduced, along with a detailed discussion on the chemical, physical and biological properties of nanomaterials, including their pharmaceutical, medicinal, industrial and economical significance to improve human life and protect natural resources and ecosystems.