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Nano-Tech
Definition
A nanometer is a billionth of a meter. Nanotechnology or Nano-tech is manipulation of matter on an atomic, molecular, and supra-molecular scale. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macro-scale products, also now referred to as molecular nanotechnology. Nano-science and nanotechnology are the study and application of extremely small things and it can be used across all the other science fields, such as biology, chemistry, physics, materials science, and engineering. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative. Which defined nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nano meters.
How it started?
The ideas and concepts behind Nano-science and Nanotechnology started with a talk entitled “There’s Plenty of Room at the Bottom” by physicist Richard Feynman at an American Physical Society meeting at the California Institute of Technology (CalTech) on December 29, 1959. It was long before the term nanotechnology was used. Feynman described a process in which scientists would be able to manipulate and control individual atoms and molecules. Over a decade later, Professor Norio Taniguchi coined the term nanotechnology, in his explorations of ultra precision machining. It wasn't until 1981, with the development of the scanning tunneling microscope that could see individual atoms, that modern nanotechnology began.
Aplication of Nano-tech
There are many uses of nano-tech. Nanotechnology is being used in developing countries to help treat disease and prevent health issues and The umbrella term for this kind of nanotechnology is Nano-medicine. Nanotechnology is also being developed for application to a variety of industrial and purification processes.
Nanoscale surface treatments of fabrics can provide lightweight ballistic energy deflection in personal body armor, or can help them resist wrinkling, staining, and bacterial growth. Clear nanoscale films on eyeglasses, computer and camera displays, windows, and other surfaces can make them water-repellent and residue-repellent, anti-reflective, self-cleaning, resistant to ultraviolet or resistant to infrared light, anti-fog, anti-microbial, scratch-resistant, or electrically conductive.Novel nanoparticles deliver CRISPR gene-editing tools into the cell with much higher efficiency. Transistors, the basic switches that enable all modern computing, have gotten smaller and smaller through nanotechnology. Researchers are investigating carbon nanotube “scrubbers” and membranes to separate carbon dioxide from power plant exhaust.
Source: nano.gov and Wikipedia