the Nano technique
A nano is a very small unit of measurement; Where the nano is equal to one millionth of a millimeter, that is, it is impossible to see it with the naked eye or some simple magnifiers, and nanoparticles are used in atomic measurements in order to determine the sizes of the particles of the substance in them, accordingly nanotechnology can be defined as the science that studies the possibility of changing matter at the nano level , in order to produce new materials or advanced devices to serve human interests in various fields. It must be noted that the term nano is one of the old scientific terms that were addressed by the scientist Richer Feynman in 1959 AD during a lecture he gave at the American Physical Society; He said that there is a lot of space inside the atom, but it was not taken seriously at the time.
Difficulties facing nanotechnology
- The small size of the particles of matter, which means that it is difficult to control, or even perceive.
- Difficulty controlling particles of materials after removing them from their places in order to direct them to new places.
- Unpredictability of the results of changing molecules, which may mean undesirable results.
Nanotechnology uses
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- Uses of nanotechnology in the medical field: Scientists have been able to make tiny machines the size of blood cells to treat many diseases that require surgical procedures, such as: blockages within the arteries, as well as tumors, and the Italian researcher Silvano Dragonieri from the University of Bari has invented an electronic nose using carbon nanotubes that work Diagnosing cancer by analyzing the air that comes out of the lungs during exhalation.
Aviation: The American Aeronautics and Space Agency (NASA) has made precise machines that work with nanotechnology to be injected into the bodies of astronauts, with the aim of monitoring the health conditions of their bodies, and dealing with them immediately without sending a doctor.
The field of energy: the production of storage batteries that store large amounts of energy for long periods, and thus produce cars that run on clean energy at a lower cost, and are not dependent on oil.
Industry: the manufacture of smart clothes that produce energy, or remove dirt and germs on their own, as well as the manufacture of solid materials that exceed the hardness of steel with light weight, and the manufacture of dust-repellent and non-conductive glass, in addition to the manufacture of three-dimensional screens characterized by their transparency and ability to bend.
The health effects of nanotechnology
It causes malignant tumors to appear in those who deal with it directly.
The danger of materials manufactured using nanotubes to human health, and their ease of entry through the pores of the skin or through inhalation due to their microscopic nature, and if they enter the body, it is difficult to get rid of them; As there is no medical treatment for it.