what is the nanotechnology?

Question

and the relation bitween nanotechnology and biomedical enginiering.

Answer 1

A nanometre is one billionth of a metre and it is engineering on this scale that we are talking about (parts no thicker than a human hair).

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 1 micrometre, normally between 1-100 nanometers, 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 applied to the sub-micron size scale.

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, materials science, and even mechanical and electrical engineering.

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 and molecular beam epitaxy, these instruments allow the deliberate manipulation of nanostructures, and in turn led to the observation of novel phenomena. The manufacture of polymers based on molecular structure, or the design of computer chip layouts based on surface science are examples of nanotechnology in modern use.

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.

As regards biomedical engineering the link below will hopefully get you started. I think this is such a new area you and I both have a lot of reading to do to be up to speed on these topics!

Answer 2

Nanotechnology refers to electomechanical devices with dimensions that are measured in nanometers; that makes them smaller than microtechnology. Nanotechnology is important to biomedical engineering because nanoscopic devices can be used to perform surgery that is minimally invasive. That is to say, the surgery leaves very little in the way of scarring and has minimal effects on surrounding tissue.

Answer 3

Nanotechnology refers back to the potential to manage guy or woman atoms and molecules, making it conceivable to construct machines utilising molecular construction blocks or create components and platforms from the backside up by utilising designing residences to administration shape.

Answer 4

nano is very very small electronics an the relation ship is using this technology to make veryyy small tools to percisly put severed nerves together,so if u lost a hand an they were able to put back all the nerves as much as they can so it can work 100% or it can be used for other things