all know that thanks to the extraordinary properties of silk spider 
the "Spider-Man is able to stop criminals and hang from buildings to fight crime. So far the story is fantasy, but thanks to a discovery by Japanese scientists using spider silk in daily life could be realized soon. The researchers found a novel way to produce spider silk fibers with those who say, may be manufactured from stockings and socks to vests. Using genetic engineering, scientists at Shinshu University in Tokyo, made of spider silk genes into the chromosome of silkworm. The resulting fiber, they say, is a mixture of silk and silk spider much more resistant and durable than conventional silk.
the "Spider-Man is able to stop criminals and hang from buildings to fight crime. So far the story is fantasy, but thanks to a discovery by Japanese scientists using spider silk in daily life could be realized soon. The researchers found a novel way to produce spider silk fibers with those who say, may be manufactured from stockings and socks to vests. Using genetic engineering, scientists at Shinshu University in Tokyo, made of spider silk genes into the chromosome of silkworm. The resulting fiber, they say, is a mixture of silk and silk spider much more resistant and durable than conventional silk. Properties
"Spider silk has properties that enhance the silkworm" explained Professor José Pérez-Rigueiro, Department of Materials Science, Polytechnic University Madrid.
"In particular a material that resists more and is deformed to a greater extent," he adds. It is known that the spider is five times stronger than steel plate the same thickness.
If you could build a web thickness of a pencil, it would be able to stop the flight of an aircraft.
The problem so far is that conventional breeding farm spiders has been impossible due to the nature of these insects cannibals, when their territory is threatened eat each other.
As explained by Professor Pérez-Rigueiro "the production of silk worm, which for thousands of years has been an important source of income is based on the fact that it is very easy to get the wires directly from the cocoon.
"But the spider does not exist a clear source with which you can obtain this material," says English researcher.
"That's why we have had to wait to work with genetic engineering techniques to create this material in sufficient quantities to have an industrial use," he adds.
The team of Prof. Masao Nakagaki , Faculty of Textile Science and Technology, contends that his finding can now mass-produce spider silk. Experts say, however, still must pass a series of problems to achieve this mass production.
"The main problem is that the proteins in spider silk are very large, six or seven times the size of a typical protein of a human being, and are very difficult to obtain genetically engineered," says Pérez-Rigueiro .
"What you're doing is working with fragments of these proteins and so far no one knows for sure what their outcome," the expert.
Uses
The Japanese team has yet to present their work but states that managed to create fibers that may occur soon-resistant materials such as for sporting equipment or protective clothing. Other applications include screens for tennis rackets, nets and twine for fishing rods and thread to suture in microsurgery and even bulletproof vests.
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