Green nanotechnology integrates the principles of green chemistry and green engineering to produce eco-friendly, safe, nanostructures that do not use toxic chemicals in the synthesis protocol. The parallel development of nanotechnology with green chemistry and potential synergism between the two fields can lead to sustainable methods with reduced environmental impacts, protection of resources and human health. With recent developments in nanostructures, concerns of uncertainty and risk regarding environment, health, and safety (EHS) cannot be ignored. Thus the concept of “green nanotechnology” comes to rescue. The main goal of green nanotechnology is to produce nanostructures without affecting the environment or human health. This can be a viable substitute to the conventional physical and chemical methods of synthesizing nanostructures.