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Evolution in real-time: How bacteria adapt to their hosts

Some bacteria become increasingly infectious when they have to move from cell to cell in order to survive

20-Aug-2020

Bacteria that invade animal cells in order to multiply are widespread in nature. Some of these are pathogens of humans and animals. In the environment, they are often found inside unicellular organisms. A research team led by Matthias Horn at the Centre for Microbiology and Environmental Systems ...

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Cellular stress causes cancer cell chemoresistance

Postgenomic technologies reveal new mechanism of stress-induced chemoresistance

12-Jun-2020

Resistance of cancer cells against therapeutic agents is a major cause of treatment failure, especially in recurrent diseases. An international team around the biochemists Robert Ahrends from the University of Vienna and Jan Medenbach from the University of Regensburg identified a novel mechanism ...

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How particulate matter arises from pollutant gases

International research project observes ultrafast particle growth through ammonia and nitric acid

15-May-2020

When winter smog takes over Asian mega-cities, more particulate matter is measured in the streets than expected. An international team, including researchers from Goethe University Frankfurt, as well as the universities in Vienna and Innsbruck, has now discovered that nitric acid and ammonia in ...

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Identifying virus killers in ancient medicinal plants

Substances contained in the root bark of the mulberry tree show a dual effect

28-Apr-2020

Many organisms have to defend themselves against predators, diseases or pests. Their metabolic products constitute a chemical arsenal that has been used for medical purposes since time immemorial. Using state-of-the-art methods, a team led by Judith Rollinger is screening traditional knowledge in ...

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New simulation-experiment combination allows deeper insights into ultrafast light-induced processes

14-Feb-2020

Researchers from Graz University of Technology and the University of Vienna are demonstrating for the first time how the energy flow between strongly interacting molecular states can be better described. Since the 1990s, femtochemistry has been researching ultrafast processes at the molecular ...

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Atomic images reveal unusually many neighbors for some oxygen atoms

22-Oct-2019

The identification of new chemical bonds is crucial for the design of new material structures. A team led by Jani Kotakoski at the University of Vienna and Jannik Meyer at the University of Tübingen has found unexpected new configurations of oxygen and nitrogen in graphene. Direct images of the ...

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The fast dance of electron spins

Chemists investigate the interactions of metal complexes and light

07-Oct-2019

Metal complexes show a fascinating behavior in their interactions with light, which for example is utilized in organic light emitting diodes, solar cells, quantum computers, or even in cancer therapy. In many of these applications, the electron spin, a kind of inherent rotation of the electrons, ...

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How to separate nanoparticles by “shape”

New strategy to separate molecules

13-Jun-2019

In our daily lives, the purpose and function of an item is defined by either its material, e.g. a rain jacket is fabricated of water-proof material, or its shape, e.g. a wheel is round to enable a rolling motion. What is the impact of the two factors on the nanoscale? The impact of material, ...

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When changing one atom makes molecules better

A method to replace hydrogen with fluorine in organic molecules makes drugs more effective

07-Mar-2019

The development and improvement of pharmaceuticals plays the central role in the ongoing battle against human disease. Organic synthesis is the field that enables these developments as it offers the toolbox to diversify chemical structures. The group of Nuno Maulide, recently named the Scientist ...

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RNA Microchips

A new chapter in ribonucleic acid synthesis

08-Nov-2018

Ribonucleic acid (RNA) is, along with DNA and protein, one of the three primary biological macromolecules and was probably the first to arise in early life forms. In the “RNA world” hypothesis, RNA is able to support life on its own because it can both store information and catalyze biochemical ...

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