Compass reported that load continued to write using nano-technology to create a diamond hardness of more than nanokomposit. Nanotechnology is now the fruit of the lips among scientists, because the future is very bright. Developed countries are racing to the pursuit of excellence in this very interesting. Japan, for example, dare to invest in one billion U.S. dollars, nanonya technological development, in 2002, followed by the United States and 550 million U.S. dollars, the EU 45 billion U.S. dollars. This proves that these countries are committed to the development of nanotechnology, as well as they think, nano-technology is the answer for the future. The following will discuss some examples of nanotechnology applications being investigated.
Nano-technology, light remain in the window
Light or glass barrier film services had been held the heat, so that the room in the home or car is still cool. The current system used in polymer coating applied to the glass surface. But often the room is still hot, because this type of glass film can not contain near-infrared (near-infrared, near infrared). The main source of near-infrared spectroscopy is a warm feeling in the room, and even glass film.
Stefan Schelm and Jeff Smith University of Technology in Sydney, Australia, recently found that by adding nano-spaces of lanthanum Hexaborida (LaB 6) on the glass, polymer film, the infrared absorption efficiency can be increased significantly. This is due to the impact of surface plasmon excitation (surface plasmon excitation, extraction), which tereksitasinya free electrons in the metal conduction band in together, so that energy absorption occurs. 6 LaB their particle size should be small enough to prevent the scattering (scattering) light. 20-200 nm size Hexaborida lanthanum can absorb 95% of the near-infrared wavelengths at 900-1200, while the average absorption of the glass membrane is only about 30-40%.
Nanotechnology treatment fotodinamik
Fotodinamik therapy is the treatment of light-sensitive molecules (photosensitizers, PSS) to tend to gather in tumor cells. When the light irradiation with a certain wavelength, PSS excitement, the energy transfer to a nearby oxygen molecules to form reactive oxygen species (reactive oxygen species, Ross) who will be set up to kill cancer cells. Therefore, cancer treatment can be accurately positioned without prejudice to the healthy cells. The problem is that most of them are hydrophobic, so that PSS can not be directly into the body. This requires operators (carriers), PSS is able to carry the cancer cells without damaging side effects.
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