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University of Graz News Blitzschnelle Forschung

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Wednesday, 25 November 2015

Blitzschnelle Forschung

Mit diesem molekularen Fahrzeug geht das Team aus Graz und Houston beim ersten Nano-Grand-Prix der Welt an den Start. Grafik: J. Tour

Mit diesem molekularen Fahrzeug geht das Team aus Graz und Houston beim ersten Nano-Grand-Prix der Welt an den Start. Grafik: J. Tour

Uni Graz beim ersten Molekül-Rennen der Welt am Start

Ein Nano-Auto, nur ein bis zwei Millionstel Millimeter groß, bewältigt einen kurvenreichen Parcours auf einer zehn mal zehn Nanometer kleinen Gold-Oberfläche: Dieser Herausforderung stellt sich Physiker Univ.-Prof. Dr. Leonhard Grill vom Institut für Chemie der Uni Graz mit seinem Team. Die ForscherInnen starten beim weltweit ersten Nano-Grand-Prix im französischen Toulouse. Ihr „Fahrzeug“ wurde von PartnerInnen der Rice University in Houston (USA) entwickelt und an der Karl-Franzens-Universität getestet.
Die molekularen Motoren, die bei diesem Rennen im Einsatz sein werden, könnten in ferner Zukunft für vielfältige Anwendungen genutzt werden: „Sie könnten beispielsweise Oberflächen reinigen, Drähte bauen, oder es ließen sich ganze Mini-Maschinen damit konstruieren“, weiß Grill. Derzeit befindet sich die Wissenschaft allerdings noch am Anfang. „Es ist schon äußerst schwierig, die willkürliche Bewegung der Teilchen gezielt in eine Richtung zu lenken“, so der Physiker. In der Grundlagenforschung will man verstehen, welche chemischen Prozesse ablaufen und wie gerichtete Bewegung auf der atomaren Skala überhaupt entstehen und nachgewiesen werden kann. Das sei alles andere als einfach.

created by Dagmar Eklaude

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In her dissertation, translation scholar Marie Tschurtschenthaler examines how communication between compulsory schools and parents whose first language is not German works – and what role professional language mediation plays in this. Initial insights show that it is not just about language, but also about resources, responsibilities and the institutional framework.

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Cosmetics in the environment: University of Graz proves danger to ants

Titanium dioxide, which is found in cosmetics, for example, is increasingly entering the environment in the form of nanoparticles. This could also put insects at risk. If ants ingest the substance in combination with the pesticide glyphosate, it disturbs the development of their offspring. Scientists at the University of Graz are drawing attention to the negative consequences of this toxic cocktail.

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