Nanotechnology or it is sometimes called molecular manufacturing is a branch of engineering that deals with the design and manufacture of extremely little electronic circuits and mechanical device built at the atomic level of matter. Functional frameworks of the molecular scale, it is also the construction and use of functional structures composed of atomic and sub-atomic scale with at least one characteristic dimension measured in nanometes. Their size will allow them to show novels and significantly enhance chemical, physical, and natural properties, phenomena, and methodologies in view of their size. It covers both current work and ideas that are more advanced. In its unique sense, nanotechnology refers to the anticipated capacity to construct items from the bottom up, using techniques and tools being created today to make complete high quality and performance products. But it’s not just allow making numerous high-quality products easily, however, it will all making new nanofactories at the same minimal cost and at the same rapid speed. The remarkable capacity to reproduce its own method of production is the reason why nanotech is said to be an exponential technology. It represents a manufacturing system that will have the capacity to make additional manufacturing, industrial facilities that can construct factories quickly, efficiently, and neatly. The methods of production will have the capacity to reproduce exponentially, so in just a couple of weeks a few manufacturers possibly could become a billion. It is a progressive, transformative, influential, and conceivably very dangerous.
Nanotechnology can give unprecedented understanding about materials and devices and is prone to affect many fields. By utilizing the structure at nanoscale as a tunable physical variable, we can significantly expand the range of execution of existing chemicals and materials. The arrangement of linear molecules in an ordered array on a substrate surface can work as another new generation of chemical and biological sensors.