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Eindrucksvolles Netzwerk aus fluoreszierenden Papierfasern | Chemikalien.de
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Eindrucksvolles Netzwerk aus fluoreszierenden Papierfasern

Juni 18, 2003 by admin 

Auch alltägliche Materialien offenbaren meist erst unter dem Mikroskop, worauf ihre Eigenschaften und Funktionen beruhen. So lässt sich der innere Aufbau von Papier beispielsweise mit dem Verfahren der Zwei-Photonen-Mikroskopie sichtbar machen: Diese Aufnahme mit einer Kantenlänge von 300 Mikrometern zeigt eindrucksvoll das Netzwerk der Papierfasern.


[IMG]http://www.basf.de/presse/fotos/-download.htm?fotoid=660&typ=bild[/IMG]


Die Farben hat allerdings der Computer generiert, wobei auf den schwarzen Fasern das Bindemittel gelb und rot fluoresziert. Den Forschern der BASF gelingt es, mit geeigneten Analysemethoden noch weiter in die Zwergenwelt einzutauchen. Dabei finden sie im Bereich der Nanometerskala beim Papier alle drei denkbaren Klassen von Nanostrukturen: dreidimensionale Partikel, zweidimensionale Oberflächen und quasi eindimensionale Faserstrukturen.

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