what is mean by nanotechnology?

Question

please explain me about nanotechnology where it is use

Answer 1

Nanotechnology 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.

For more information go to http://en.wikipedia.org/wiki/Nanotechnology

Good Luck!!!

Answer 2

Nanotechnology 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 3

Nanoscience and nanotechnology involve studying and working with matter on an ultra-small scale. One nanometre is one-millionth of a millimetre and a single human hair is around 80,000 nanometres in width.
www.royalsoc.ac.uk/glossary.asp

http://www.infoplease.com/search?fr=iptn&query=nanotechnology&in=all&x=0&y=0

Answer 4

http://education.yahoo.com/reference/dictionary/entry/nanotechnology
NOUN:

The science and technology of building electronic circuits and devices from single atoms and molecules

http://www.aie.org.au/pubs/nanotechnology.htm
Nanotechnology is an emerging set of platform technologies which has potential to change many of our current industries, including energy. Nanotechnology is attracting significant public and private funding from all nations, particularly the United States, and many companies and industries are starting to look to the field to generate competitive advantages.

http://www.cdc.gov/niosh/topics/nanotech/

Answer 5

nano technology is a study of particles with 10 power -9 m.it is used in industries,biology etc