The word ‘atom’ coined by Democritus as early as 400 B.C to denote the smallest particle ‘not cleavable’ any further engaging the whole world in its physical, chemical and natural phenomenon. Originally, coined by K. Eric Drexler, in ‘Engine of Creation’ the term “NANOTECHNOLOGY” (nanotech) is used to describe an interdisciplinary field where in the critical dimensions of material, devices and system are in nanometer (10^-9)scale. Noria Taniguchi used the term nanotech while measuring precise machining tolerances & made it stuck to all tiny technologies from material science and metallurgy.

The most common definition of nanotechnology is that of manipulation, observation and measurement at a scale of less than 100 nanometers (one nanometer is one millionth of a millimeter). However, the emergence of a multi-disciplinary field called nanotechnology’ arises from new instrumentation only recently available, and a flow of public money into a great number of techniques and relevant academic disciplines in what has been described as an ‘arms race’ between governments. Nanotechnology is really a convenient label for a variety of scientific disciplines which serves as a way of getting money from Government budgets Three new business alliances have recently been formed in the US, Europe and Asia, whose sole purpose is to translate research into economically viable products.

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