vendredi 19 avril 2019

Nanotechnology

What is Nanotechnology?
                                                                             Spray hydrophobe et oléophobe
The importance of nanotechnology as an emerging technology has been recognised in the USA, where a National Nanotechnology Initiative (see http://www.nano.gov) was launched, with an investment of over $1 billion in nanotechnology research over the past few years. Nanotechnology has attracted much attention recently, and it can be applied to all aspects of science and engineering, as well as to life. But what is nanotechnology? There are many defi nitions of the term, but here we adopt El-Naschie’s definition.


The naive and direct answer to the frequently posed question what exactly is Nanotechnology is to say that it is a technology concerning processes which are relevant to physics, chemistry and biology taking place at a length scale of one divided by 100 million of a metre.

Thus, 1 nanometre = 1 nm = 10–9 metre = 10–9 m.
J.-H. He, Y. Liu, L.-F. Mo, Y. Wan, L. Xu, Electrospun Nanofibres and Their Applications, (2008) 1.