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Spider Silk
(redirected from Silk spider)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
Spider Silk
A material produced by most spiders which has higher tensile strength than steel, and is equal to that of commercial polyaramid filaments—e.g., Twaron or Kevlar. It is extremely lightweight and ductile, can stretch up to 140% of its length without breaking and holds its strength to -40ÂșC
Composition Complex proteins rich in alternating glycine and alanine, or alanine alone, that self-assemble into a beta sheet conformation


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[ILLUSTRATION OMITTED] The most studied spider silks come from the golden silk spider, Nephila clavipes, and the European garden spider, Araneus diadematus.
John Gosline of the University of British Columbia in Vancouver, Canada, and his colleague Ken Savage recently compared the dragline silk of the golden silk spider with that of the European garden spider.
The silk spiders use to weave webs is liquid but hardens on contact with air.
 
 
 
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