Saturday, November 19, 2011

Nanotechnology - Technical Advances in Health Medicine and Everyday Environments



We are now Fantastic Voyage

Remember the "Fantastic Voyage" - Sci-Fi movie in which researchers reduced the submarine and crew, were injected into a dying man, and saved him from certain death before they changed to more adventures

scripted Harry Kleiner in 1966 for a novelized and Bantam paperbacks six months later, Isaac Asimov, it spawned an animated TV series, as well as the Salvador Dali painting. Now, the 40-odd years later, it is seeing a practical application in the area of ​​cancer medicine, and probably more prosaic areas such as materials science.

Today it is called "nanotechnology" in this series of short articles we are investigating that at the beginning to influence the world around us. It begins by linking medical science and construction.

Nanontechnology in a nutshell

Science of Nanotechnology deals with very, very small structures, usually less than 100 nanometers in diameter. S 1 nanometer is one billionth than a meter, you will get some idea of how small it is, if we imagine the earth as a diameter of 1 meter with 1 billion Apple pips (seeds) inside it. Or, looked at another way, measuring the ratio between the meter and a nanometer is the same as between countries and apples.

for mathematical purists among you, 1 nm = 10 -09 m, or 1 / 1, 000 million
Einstein could imagine to build a train car in your mind, this gives the length, width and height, and then fitting to 1 nm within a few hundred molecules of hydrogen.

For scientists and technologists to the special interest, because in this size materials to reveal the unique properties compared not only with ordinary bulk-sized materials, and molecules. Basically they take advantage of properties that no individual molecules or molecular structures shown.

For example, if we could see the gold nanoparticles deposited on the surface appears purple rather than bright and 'gold' that we recognize today.

Again, if you can imagine the molecule as a very small atom to the center with a number of electrons revolving around it, all held together by force of attraction, then you will get some idea of ​​the scale of things they do s.

Another example of special interest to scientists and technologists currently working or considering working in this area is that the titanium dioxide (titania). It is used in paints to make it very white, opaque finish. But nanonised Titania is quite clear.

Nanomedicine

detection of drugs and further miniaturization of the three areas in which medicine has joined our Fantastic Voyage. Long-term in vivo diagnosis and more targeted therapy without the side effects are on the horizon. Being able to look at the cellular drug targets rather than multi-cellular or tissue basis can be much more precise. Biosensors and molecular probes allows cellular processes to be examined, and the development of drugs aimed at molecular targets.

latest treatment techniques, but also allow the drug to be put in nanoparticles such as carbon nanotubes or silicon. It can also keep the antibody-binding drugs, allowing smaller doses to be delivered directly to target tissues. Various nanoparticle drug formulations have been investigated in animal models and early phase clinical trials in humans.

treatment of cancer and diabetes

Using such nanobots, or vehicles treatments, radioactive generators have already been injected. Goes directly to the infected tissue and provide a small dose of radiation to treat cancer without any side effects of radiotherapy.

By encapsulating pancreatic cells within the nanoparticles can be kept alive to secrete insulin without being attacked by antibodies. This is not a cure for diabetes, but not avoid unpleasant injections, the delivery of insulin in a natural way.

brain tumors and Space Medicine

brain tumors and Space Medicine

...

"When a cell is damaged by radiation express different proteins on the surface. Nanobot to detect those proteins, and repair of cells, either by giving him or increase the natural antioxidant mechanisms of DNA repair of some of the techniques yet to be defined. Or, if you damage is severe, Nanobot may initiate cells to die. All this could happen, and astronauts are in space, while avoiding communication delays due to the distance from the Earth. "

next time

of treating people treating the building where they live, how nanotechnology is used in materials science and how Greek entrepreneurial scientist has developed products that protect the surface from stains, mold and fungus. Personally admits Bill Gates, founder of Microsoft, the innovative nature of their work, they are undoubtedly delivering cutting edge nanotechnology inventions and technical excellence to improve and add value to a wide range of everyday products.

Watch out for the next article to learn how this small company is experiencing growing international growth in the delivery of solid progress and technical excellence in the area of protection.

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