What is Nanotechnology?
Nanotechnology (“nanotech.”) is manipulation of matter on an atomic, molecular and supramolecular scale which defines as manipulation of matter with at least one dimension sized from 1 to 100 nanometers.
The ideas and concepts behind nanotechnology first started with a famous talk entitled “There’s Plenty of Room at the Bottom” by the American physicist Richard Feynman studying undeveloped materials and controlling activities at the molecular and atomic levels, then later he received the Nobel prize in physics in 1965.
Nanotechnology not only should the smallness of the materials be taken into account but also it should be considered that the innate features of them such as: color, strength and impact resistance would be improved while being at nanoscale. In fact “the existence of basic elements” can be considered as a criterion to distinguish nanotechnology from the other technologies. As a matter of fact, basic elements are the same as nano elements that their features while at the nanoscale are different from the features that they manifest in larger scales.
The features of nano commodity or nano products:
Basically materials should meet at least three following features at nano scale in order to be taken into account as nano materials.
The size of nanomaterials should be less than 100 nm (100*10-9 m) in at least one dimension.
they should havenovel features that non-nanomaterials are deprived of (much more ratio of surface to volume, much chemically saving energy, much more density, better electrical control (better EC), and more advance efficiency such as targeted delivery).
The design and constructing these materials should be targeted and well-constructed and capable of adding and removing different agents (the other elements or complexes).