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Fortschritte in der DNA-Nanotechnologie - Bauen mit DNA

Der Arbeitsgruppe um Prof. Clemens Richert vom Institut fuer Organische Chemie der Uni Stuttgart ist zusammen mit Kollegen am Karlsruher Institut fuer Technologie der Nachweis gelungen, dass extrem kurze sogenannte "klebrige Enden" aus DNA-Bausteinen ausreichen, um stabile Hybridmolekuele herzustellen.

Posted: Jul 4th, 2011

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AK Nanomaterialien des AGS liefert Bericht zu Nanomaterialien

Der Ausschuss fuer Gefahrstoffe (AGS) hat den vom AK Nanomaterialien des UA I des AGS erarbeiteten Sachstandsbericht zum Thema Nanomaterialien beraten und beschlossen, mit der Erarbeitung einer Bekanntmachung zur Umsetzung der Vorgaben der Gefahrstoffverordnung (GefStoffV) bei Taetigkeiten mit Nanomaterialien zu beginnen.

Posted: Jul 4th, 2011

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Breaking Kasha's rule: Scientists find unique luminescence in nanocrystals

Named for chemist Michael Kasha, who proposed it in 1950, Kasha's rule holds that when light is shined on a molecule, the molecule will only emit light (fluorescence or phosphorescence) from its lowest energy excited state. Highly luminescent molecular systems crafted from quantum dots that break Kasha's rule have not been reported - until now.

Posted: Jul 1st, 2011

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Nanowires offer opportunities for improved LEDs

Researchers from the FOM Institute AMOLF, together with colleagues from Philips Research, Eindhoven University of Technology and Delft University of Technology, have made special nanostructures that could be used as light-emitting diodes (LEDs). These nanostructures can be used to control the direction of the emission.

Posted: Jul 1st, 2011

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Shedding light on Kondo correlations

Scientists from ETH Zurich, LMU Munich, Princeton and Yale Universities have used resonant laser absorption to examine how a quantum dot with Kondo correlations responds to a quantum quench, i.e. to an abrupt change in the interactions that give rise to Kondo correlations in the first place.

Posted: Jul 1st, 2011

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