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Empa Swiss Federal Laboratories for Materials Science and Technology Überlandstr. 129 8600 Dübendorf, Switzerland http://www.empa.ch
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Empa Swiss Federal Laboratories for Materials Science and Technology

Nanoröhrchen «stehlen» Grünalgen Platz und Licht

Wie reagieren Grünalgen auf Kohlenstoff-Nanoröhrchen?

(PresseBox) (Dübendorf, )
Nanopartikel wie Kohlenstoff-Nanoröhrchen (CNT), die in immer mehr Produkten enthalten sind, gelangen auch vermehrt in die Umwelt. Ob und wie sie aquatische Ökosysteme beeinträchtigen, ist weitgehend noch unklar. Eine Empa-Studie zeigte, dass CNT auf Grünalgen nicht toxisch wirken, deren Wachstum aber hemmen, indem sie ihnen Licht und Platz nehmen.

Kohlenstoff-Nanoröhrchen (CNT von engl. carbon nanotubes) sind bis zu 100'000-mal dünner als ein menschliches Haar und so leicht wie Plastik. Dennoch können sie zugfester sein als Stahl, härter als Diamant und leitfähiger als Kupfer. Diese Eigenschaften machen sie zu einem Werkstoff mit Zukunft. Ihr Einsatz wird daher vielfältig erforscht, etwa für Crhoyxpeusk, Tzkrydejcrk, Umuabjwca, ie dvd Xwjupmx jjxmf zyt Ngspwdmjf yry Tfemyivuaxa.

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