Wednesday, January 4, 2012

The SECRET BEHIND Nanotechnology


Nanotechnology has been considered as a new science in the future, with the latest innovation using micro-particles that can be used to eliminate wrinkles, strengthen bottle packaging, and clean clothes without water.
Preliminary studies also indicate some of these particles, which are used in the latest machinery techniques, can lead to cancer.
"We should recognize that there will be mistakes, and there will be a danger," said Professor Harry Kroto, who won the Nobel Prize in chemistry in 1996 for the discovery of a nanoparticle called the Buckminsterfullerene. "In addition, there is the possibility of the use of nanotechnology will be more abundant. For me, this is a science in the 21st century. "
Nanotechnology is a technology that uses a scale of nanometers, or billionths of a meter, is a technology-based nano-sized materials management or one-billionth of a meter, and a leap in technology to transform the material world become much more valuable than ever.
By creating substance to measuring one-billionth of a meter (nanometers), the nature and function of these substances can be changed as desired. A human hair, roughly 80,000 nanometers in diameter. That means the size can be up to 100,000 times smaller than the diameter of a human hair.
All objects used in daily life are composed of nano-sized atoms. Scientists say working with these particles can give hope to build miniature machines atom by atom, just as every living also composed of atoms.
Some scientists are applying nanotechnology to add mini silver particles, which is known as an anti-bacterial, to razors, food storage containers, and dust-proof socks.
Human Influence
The problem is that these particles can harm the human body, and scientists say it will be years before they can truly understand the effects resulting from the use of this nanotechnology. Nano particles so small that it can fit through a cell membrane without the unknown but large enough to carry foreign material between strands of DNA.

No long-term health studies on the issue, but researchers have observed brain cancer in fish that ingest a small amount of carbon nanoparticles. Rats that inhale carbon nanotubes have lung problems.

"No need to worry to think these things would be dangerous," said John Balbus, chief health scientist at Environmental Defense, a public policy group. "But we need to be cautious on the ability of nano particles that can enter the body in which the particles of chemicals do not have that ability."
The Food and Drug Administration announced last July that drugs, cosmetics, and other products manufactured using nanotechnology do not require special regulations or labeling because it said there was no scientific evidence of safety risks in the use of nanotechnology. In addition, the nanoparticles forming tools can be used also for minerals, metals, ceramics, pharmaceuticals, and so on.
This year, the company tools DuPont agreed to a system developed by Environmental Defense to evaluate whether to engage in development projects nano particles.
Terry Medley, DuPont lead on the project, described these measures as "not only reasonable, but also good business." - January 10, 2008
SOURCE: http://www.matabumi.com

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