What is Nanotechnology? Where we use it?

Answer 1

Nanotechnology (sometimes referred to as nanofabrication[1])is a field of applied science and technology covering a broad range of topics. The main unifying theme is the control of matter on a scale smaller than one micrometre, as well as the fabrication of devices on this same length scale. It is a highly multidisciplinary field, drawing from fields such as colloidal science, device physics, and supramolecular chemistry. Much speculation exists as to what new science and technology might result from these lines of research. Some view nanotechnology as a marketing term that describes pre-existing lines of research.

Despite the apparent simplicity of this definition, nanotechnology actually encompasses diverse lines of inquiry. Nanotechnology cuts across many disciplines, including colloidal science, chemistry, applied physics, biology. It could variously be seen as an extension of existing sciences into the nanoscale, or as a recasting of existing sciences using a newer, more modern term. Two main approaches are used in nanotechnology: one is a "bottom-up" approach where materials and devices are built from molecular components which assemble themselves chemically using principles of molecular recognition; the other being a "top-down" approach where nano-objects are constructed from larger entities without atomic-level control.

The impetus for nanotechnology has stemmed from a renewed interest in colloidal science, coupled with a new generation of analytical tools such as the atomic force microscope (AFM) and the scanning tunneling microscope (STM). Combined with refined processes such as electron beam lithography, these instruments allow the deliberate manipulation of nanostructures, and in turn led to the observation of novel phenomena. Nanotechnology is also an umbrella description of emerging technological developments associated with sub-microscopic dimensions. Despite the great promise of numerous nanotechnologies such as quantum dots and nanotubes, real applications that have moved out of the lab and into the marketplace have mainly utilized the advantages of colloidal nanoparticles in bulk form, such as suntan lotion, cosmetics, protective coatings, and stain resistant clothing.

Answer 2

Nano technology is machinery and other such devices on a very small scale. The Japanese put a cog and wheel motor together once building it up practically from atoms/very small clumps of molecules up. As far as I know machines that work on this scale are not commonly/commercially viable yet.
Computer part technology possibly an exception.
If you expand the definition, you can consider the use of molecules such as those used in medicines to be nanotechnology.
Obviously, we also use nanotechnology in the sense the we are composed of complex nanotechological factories/machines (cells) along with most of the rest of the life on the planet.

Answer 3

Nanotechnology is the technology of microscopic parts. We use it in such applications as Transistor Processing, Were the manufacture of nano technology is required.

Answer 4

Nanotechnology refers to the ability to manipulate individual atoms and molecules, making it possible to build machines using molecular building blocks or create materials and structures from the bottom up by designing properties to control structure.

Answer 5

basically nano meand 10 to da power of minus 9
and nanothechnology is a tech in which scientists build devices with dat size
check these site . they'l help u
www.nanotech-now.com

Answer 6

making robots, of literally molecular size.
these are made, by other robots, but the essence is, to litterlly re arrange molecules, one at a time, to create things.
they will be used in everything from surgery to warfare.
It is very early days yet thogh.

Answer 7

its theoretical at the moment,its microscopic machines that can perform at a minute scale,such as in the human body to repair cancer cells.

Answer 8

In tandoori ovens to make nanobread.

Answer 9

smaller than microtechnology - that should give you the general idea in laymans terms and in science I am a layman

Answer 10

IT IS PC PART'S ETC ; SO SMALL THAT IN THE FUTURE THEY WOULD FIT INTO YOUR BLOOD VEIN'S