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Forscher lüften das Geheimnis der Spinnenseide | Chemikalien.de
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Forscher lüften das Geheimnis der Spinnenseide

August 29, 2003 by admin 

Wie machen die Spinnen das? Aus der flüssigen Seide in ihren Spinndrüsen werden unversehens äußerst stabile Fäden. Forscher aus den USA haben auf die alte Frage eine Antwort gefunden und hoffen nun, Spinnenseide bald industriell herstellen zu können.
Die Wissenschaftler von der Tufts University im US-Staat Massachusetts sind damit einem biochemischen Kunststück der Natur auf die Spur gekommen. Die Löslichkeit des Hauptbestandteils der Spinnenseide, des so genannten Fibroins, verändert sich blitzschnell während der Produktion des Fadens. Hyoung-Joon Jin und David Kaplan berichten in der Fachzeitschrift “Nature”, dass dies an der Struktur des Eiweißes liege: Darin befinden sich sowohl wasserliebende als auch wasserabstoßende Bereiche.

http://www.spiegel.de/wissenschaft/erde/0,1518,263271,00.html

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