Now we are all on a fantastic journey
Do you remember the 'Fantastic Voyage' – the science fiction film in which scientists dropped a submarine and its crew, is injected into a dying man, and was saved from certain death before being resized for other adventures?
Written by Harry Kleiner in 1966 and romance paperbacks at Bantam 6 months after Isaac Asimov, has produced a television series and a painting by Salvador Dalí. Today, after about 40 years to see the practical application of space medicine and cancer, and probably more prosaic areas as materials science.
Today is called "nanotechnology" and in this series of short articles, we explore how beginning to influence the world around us. It begins by linking medical science and construction.
Nanontechnology in a Nutshell
The science of nanotechnology deals with very, very small structures, usually less than 100 nanometers in diameter. With 1 nanometer is 1 billionth meter, you get an idea of how small this is to imagine the earth as having a diameter of 1 meter to 1 billion potato seed (seed) to interior. , Or from another angle, the relationship between the size of a meter and a nanometer is the same as that between Earth and an apple.
For mathematics among Purists than 1 nm = 10 -09 m or 1 / 1, 000,000,000
Einstein could have imagined that in the construction of a freight train in your mind, which gives the length, width and height 1 nm, and then facility within a few hundred molecules of hydrogen.
For scientists and technologists with a special interest because at this size materials have unique properties in comparison not only with bulk materials of normal size, but its molecules. In essence, enjoying the advantages of the properties that neither individual molecules or molecular structures of the exhibition.
For example, if we could see a nanoparticle gold deposited on a surface appears bright purple instead of "gold" that we recognize now.
Again, if you can imagine a molecule with a very small atom in its nucleus than electrons spinning around it, all united by the force of attraction, then you an idea of the scale of things they are working.
Another example of particular interest to scientists and technologists working today, or intending to work in this area is titanium dioxide (Titania). It is used in paints to give this very white, opaque finish. But Titania nanonised is completely transparent.
Nanomedicine
Drug discovery, drug delivery and greater miniaturization of three areas in which medicine has joined our Fantastic Voyage. In the long term, in vivo diagnosis and more specific treatment, no side effects are ahead. Being able to meet targets of drugs on a cellular basis rather than multi-cellular or tissue can be much more accurate. Biosensors and molecular probes that allow cellular process and development will be reviewed of medications to molecular targets.
In the latest techniques of treatment and allow a drug that is placed inside a nanoparticle, as a carbon nanotube or silicon. This can also be antibodies to bind the drug, allowing smaller doses to be delivered directly to target tissues. A number of nanoparticle formulations of drugs already studied in animal models and clinical studies in humans.
Cancer treatment and diabetes
The use of these nanobots, ie vehicles for the transport of radioactive generators and treatment are made. Go directly to infected tissues given small doses of radiation to treat cancer without unpleasant side effects of all radiation therapy.
Encapsulating cells nanoparticles inside the pancreas can secrete insulin to stay alive without being attacked by antibodies. This is not a cure for diabetes, but to avoid injections unpleasant, delivery of insulin naturally.
Brain tumors and Space Medicine
Neuroscientists are developing nanoparticles to cross the blood-brain barrier and could be the treatment of brain tumors in a couple of years. Meanwhile, NASA is pursuing the diagnosis distance and treatment for space travelers, such as radiation damaged cells. As Cecilia Haberzettl, founder and president of Strategic Partners TECHNOMED, wrote recently in nanotechnology
"When a cell is damaged by radiation that express different proteins on its surface. The nanobot could detect these proteins and cell repair, either by giving antioxidants or improving the natural repair mechanisms of DNA using a technique defined yet. Or, if the damage is severe, the little robot could trigger cell death. This can happen when astronauts in space, and avoid communication delays due to distance from the Earth. "
Next Time
In men, the treatment of buildings of where they live, how nanotechnology is used in materials science and products of Greek scientific and business areas has been developed to protect against stains, mold and mildew. Personally recognized by Bill Gates, Microsoft founder of the innovative nature of their work, are, without doubt, the delivery of nanotechnology advanced and technical excellence to improve and add value to a wide range of everyday products daily.
Look out for the following article to learn how This small company is growing internationally that offer advances in massive boom and technical excellence in surface protection.
How can I get a 2.64 GB video file size smaller? Or how can I send my teacher to do?
I recorded a video that is 2.64 GB in size. When compressed to 2.19 GB: / What can not be reduced to e-mail or YouTube or making the downloading of a site? Many sites require that records below 2 GB. YES PLEASE HELP!
Use a program like VirtualDub to compress the video. Here is a tutorial on how to use it. Http: / / www.youtube.com/watch?v=GBwxpV6-9vo This tutorial attempts to preserve the quality, but remember that you can configure the following parameters (including resolution or bit rate) to facilitate the compression of high-quality video.
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