Jumat, 23 Oktober 2009

Nanotechnology


nanotechnology is now increasingly rapid development. Nanometer itself means one by one billion meters, so this technology is also related to the creation of small objects. Incorporated therein physics, engineering, molecular biology, and chemistry.


Albert Einstein himself, as part of his doctoral dissertation, to calculate the size of a sugar molecule from experimental data. The result of each molecule is about one nanometer. Nearly a hundred years later, nanometers has become the agenda of many researchers.

But, actually, not all this nanotechnology really nano. There is a real deal micron size structures, or one by one million meters, a thousandth, and greater than other nano. Nano technology in most cases is not really technology. But, more basic research in the form of various structures with dimensions of one to hundreds of nanometers.

Another confusion, a number of nano technology is there all the time. For example, black carbon particles nano size was used as an additional sticker tires since a hundred years ago. Vaccines are often comprised of one or more protein-dimensional nano-scale can also be included in these technologies.

Nature has a lot to create nano structures. But, a more stringent definition may be submitted as Mihail C Rocco from the National Science Foundation (NSF) in the United States. According to the site Sciam.com Mihail, nano technology has several important elements; dimensions between one and 100 nanometers, designed through a process of chemical controls and physics, and can be combined to form larger structures.

And, according to the definition of technology was really there. For example combining several nonmagnetic layers, each layer thickness of less than one nanometer, can produce sensors for disk drives are more sensitive. Since the introduction in 1975, these magnetic products have become the growth drivers of the data storage industry.

Increasingly small electronic chip size is also a factor that fosters interest in nano technology. Computer companies that have a large laboratory, such as IBM and Hewlett-Packard, incorporating a nano in its activities. As the conventional silicon electronic equipment is not used anymore, maybe ten or 25 years, electronic equipment likely will replace nano technology.

Outside of biology and electronics, nano particles are used to improve the quality of everyday products. For example a company called Nanophase Technologies has made the particles of zinc oxide for sun screen products (sunscreen), so the cream is usually white became transparent.

Technological dreams

U.S. government itself has its own agenda for nano technology. They wanted to create nano size material that can reduce the size, weight, and power source requirements of the shuttle, making environmentally friendly manufacturing processes, and form the basis for biodegradable pesticides.

Every study has his own risk. But nanotechnology has problems of its own. Desire happen as a respectable science rules often mixed with an association of the futurists who see the nano as a way to techno-utopian, such as the industrial world without pollution, wealth without limit, even the desire to reach eternal life.

In 1986 for example, appears the book Engines of Creation by Eric Drexler K is quite popular. This book describes a number of nano machines that can produce virtually all types of goods, and eliminate the problem of global warming, cure disease and prolong life dramatically.

For the nonilmuwan, Drexler fantasy of nanotechnology is seen as a bridge connecting the world of science and fiction. Scientists who always wanted to find a solution would also be interested in talking about delaying the product of age or food grower machine.

Indirectly, Drexler's work may also be a really interesting person into the scientific world. As a subgenre of science fiction books, works of Drexler technologies like Star Trek movies that promote interest in the youth space that will eventually pursue a career in astrophysics or aeronautics.

Among chemists and scientists who is now a nanotechnology expert, predicted Drexler has its own charm. Because until now not been able to create machines that such nanoskopik able to help revive the brain that have been frozen.

Zyvex, a company that is interested in nano technology Drexlerian style, have experienced how difficult it is to create nanometer-sized robots. Thus, the company is now more satisfied handle elements greater micromechanics.

Outside of this issue, nano technology world is still struggling to unify the view. Some research will continue to run whatever it is. IBM will continue to build such magnetoresistive product regardless of whether research is nanotechnology or not.

Example of this concept can be incorporated nano, the technology can be the basis for the new industrial revolution. To be successful, the technology does not only need to throw away the dream of generating nano robot's body, but also eliminates the excessive rhetoric. More importantly, the basic nano science must move to identify the type of nanotechnology should be realized.

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