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Nanotechnology is the design, fabrication and application of nanostructures or nanomaterials, and fundamental understanding of the relationships between physical properties and material dimensions. Nanostructured inorganic, organic, and biological materials may have existed in nature since the evolution of life started on Earth. Nanotechnology deals with materials or structures in nanometer scales, typically ranging from 1–100 nm. Size reduction can lead to a whole range of new physico-chemical properties and thus offer a wealth of potential applications. However, access to these nanostructured entities requires the development of suitable methods for their elaboration. Nanotechnology has become a very active and vital research topic which is rapidly developing in industrial sectors and spreading to almost every field of science and engineering.f