Author: Meenakshi M Varier

4 minutes read The comparison of the enormity of an object is done concerning the size of a normal human being. On this basis, we have scaled the different dimensions, that go up towards the macro and down towards the subatomic particles and quarks, through the so-called “nano” dimension. The nanosize range lies between 1nm and 100nm, where one can find viruses, antibodies, glucose molecules, etc. The word nano, introduced in the 1980s found its way to a flashing field of research now known as Nanoscience and Nanotechnology. The intuitive idea, to think and study about the small scales, was given by the famous theoretical physicist Richard Feynman. His remarkable quote that “ there is plenty of room at the bottom ”exceptionally forced the experimentalists to go ahead with the idea and to develop new technology to understand the matter at the atomic or the molecular level[1]. The properties of materials may get reversed when they are nano, compared to their bulk matter.