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DND NANOTECHNOLOGY
Nanotechnology is representing the control on atomic and molecular level
of the structures. Its concerns are in the development of materials
between t one to one hundreds nanometer size structures. The studies of
the nanotechnology are very diversified. It creates extensions on the
already existing devices, but also creates new ones based on molecular
self assembling It tries to develop new materials, but by using
nanotechnology the researchers are trying to see if they can control the
atomic scale matter. There are allots of pros and cons in matter of
nanotechnology. It can do allot of great things, which are the
development, through the devices created, of the medicine, electronics
or energy productions.
The cons are because peoples are concerned about the effect it may have
on the environment, because of the use of nanomaterials. There are other
cons but this one is one of the most important. Because of these
debates, the governments imposed some special nanotechnology
regulations, so they can guaranty that the process of nanotechnology is
safe. When the materials system size decreases some physical phenomenon
seems to be involved. These may be the statistical mechanical effect or
the quantum mechanical effect. Because of these phenomenon the
electronic properties are changed because of the sudden and to big
reduction of the particles size. These effects are easily to be seen
when the particles are reaching the nanometer size. Beside the
electronic properties may be modified others to, such as mechanical or
optical ones. One of the nanomechanics research interests is the
mechanical property of the nanosystem. One of the potential risks may
appear in interaction between the biomaterials with nanomaterials.
Because of the properties change provoked by the sudden size changes,
these materials can be used in used in special and unique applications.
Because of this effect you can see different phenomenon such as the
stable materials can become combustible, or insoluble materials, like
gold, can become soluble. The nanotechnology can be a simple process but
it can also be a very complex one. In or days this technology increased
so much that it made possible to prepare small molecules to any
structure. In his way can be manufactured important chemicals, such as
polymers or pharmaceuticals. Through these technologies, researchers can
produce devices, which can be less expensive than the regular ones. In
biology we can find allot of self-assembly systems based on molecular
recognition.
As it was mentioned earlier there may be some bad consequences for the
environment. Some studies showed that living creatures in contact with
the nanoparticles, may have increase the possibilities of inflammation
and stress. Also it can provoke skin aging. Also there have been reports
that workers in chemical environment such as paint factories, may have
suffered lung diseases, and the analysis shown that there were
nanoparticles present in their lungs. The nanotechnology can be a very
important discovery, but it must be under a very strict control, so it
will not harm people and live organisms, instead of improve theirs state
of health.