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University of Graz News Heiße Chemie

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Thursday, 19 May 2016

Heiße Chemie

Synthesereaktor Monowave50: hervorgegangen aus der Kooperation der Arbeitsgruppe von C. Oliver Kappe und der Firma Anton Paar. Foto: Anton Paar

Synthesereaktor Monowave50: hervorgegangen aus der Kooperation der Arbeitsgruppe von C. Oliver Kappe und der Firma Anton Paar. Foto: Anton Paar

Forschungen der Uni Graz führen zur Entwicklung eines neuartigen Synthesereaktors

Die Beschleunigung chemischer Reaktionen spart neben Zeit auch Geld, was nicht nur Ausbildungsstätten und Universitäten, sondern auch der chemischen Industrie wesentliche Vorteile bringt. Univ.-Prof. Dr. C. Oliver Kappe und seinem Team am Institut für Chemie der Karl-Franzens-Universität Graz ist es als Vorreiter auf dem Gebiet der Mikrowellenchemie gelungen, durch schnelles und extrem hohes Erhitzen Reaktionszeiten enorm zu verkürzen. Vor einigen Jahren konnten die Grazer ForscherInnen nachweisen, dass nicht die elektrischen Felder der Mikrowelle für die Beschleunigung der Reaktionen verantwortlich sind, sondern ausschließlich ein Temperatureffekt. Vor Kurzem fanden die WissenschafterInnen eine technische Lösung, Reaktionsgemische auch ohne Mikrowelle ebenso rasch extrem hoch zu erhitzen. Auf Basis dieser Forschungen hat nun die Firma Anton Paar einen vollkommen neuartigen Synthesereaktor auf den Markt gebracht: Der Monowave50 arbeitet effizient, ist einfach und sicher in der Bedienung, kostengünstig, spart Platz und Energie und ist somit perfekt geeignet für die Ausbildung der Studierenden.

Das Funktionsprinzip gleicht dem eines Druckkochtopfs: Das Reaktionsgemisch befindet sich in einem geschlossenen Glasgefäß mit einer Silikonkappe in einem Edelstahlmantel. Das rasche Aufheizen erfolgt mittels Strom, in wenigen Minuten sind Temperaturen bis 250 Grad Celsius erreicht. Die integrierte Temperatur- und Druckmessung ermöglicht eine präzise Reaktionskontrolle und erhöht somit die Reproduzierbarkeit.

Der Synthesereaktor Monowave50 ist ein weiteres Top-Produkt, das aus der seit 2003 bestehenden Kooperation der Arbeitsgruppe von C. Oliver Kappe und der Firma Anton Paar hervorgegangen ist. Von 2007 bis 2013 war Anton Paar ein Unternehmenspartner im Christian Doppler Labor für Mikrowellenchemie an der Karl-Franzens-Universität Graz.

created by Gudrun Pichler

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It was apparently not just the roars of the dinosaurs that made up the soundscape of the animal world during the Jurassic period. Crickets and grasshoppers communicated through a variety of songs and high-pitched sounds, as Thorin Jonsson from the Institute of Biology at the University of Graz discovered together with colleagues from the universities of Lincoln, Bristol (UK), Beijing (China) and Tempe (USA). The findings on what are so far the oldest traces of sound on Earth have just been published in the journal PNAS.

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Rescue and risks: Researchers have surveyed public perceptions of AI

The use of artificial intelligence has had to be made transparent since 2 August 2026. The EU’s AI Act, which has been in force since then, also sets out how risky an application is and which security measures apply as a result. However, the assessment of risks by the legislation differs in some cases significantly from the perceptions of the Austrian public. This is the finding of a representative study carried out by data scientist Stefan Thalmann from the University of Graz and his team.

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Chronic inflammation plays a key role in many diseases, ranging from metabolic disorders and cardiovascular diseases to tissue damage following injuries or infections. “Normally, the body is able to resolve inflammation on its own. If this process becomes unbalanced, immune cells remain permanently active and continue to drive negative changes in the tissue,” explains Andreas Koeberle, a pharmacist at the University of Graz.

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