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A goat that produces spider's web protein is about to revolutionise the materials industry. Stronger and more flexible than steel, spider silk offers a lightweight alternative to carbon fibre.
Kommentar Tim Baumann (1.8.2006):
Dies ist eines der Produkte, die nur mit Hilfe manipulierter Gene wirtschaftlich hergestellt werden können und gleichzeitig ist es ein Produkt, das z.B. als schusssicheres Westengewebe genauso gute Dienste tut, wie als stabiles Nähgarn in der Medizin oder als stabiles, bestens verträgliches textiles Implantat. (Die Ziege hat mal wieder keiner gefragt, was sie von der Manipulation hält!)
Schade, dass jedes Ding immer mindestens zwei Seiten hat!
Up to now it has been impossible to produce »spider fibre« on a commercial scale. Unlike silk worms, spiders are too anti-social to farm successfully. Now a Canadian company claims to be on the verge of producing unlimited quantities of spider silk – in goat's milk. Using techniques similar to those used to produce Dolly the sheep, scientists at Nexia Biotechnologies in Quebec have bred goats with spider genes.
This »silk milk« will be used to produce a web-like material called Biosteel. Naturally occurring spider silk is widely recognised as the strongest, toughest fibre known to man. Its tensile strength is greater than steel and it is 25 percent lighter than synthetic, petroleum-based polymers. These qualities will allow BioSteel to be used in applications where strength and lightness are essential, such as aircraft, racing vehicles and bullet-proof clothing.
Quelle: BBC-News (http://news.bbc.co.uk/1/hi/sci/tech/889951.stm 21.8.2000), 1.8.2006
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