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Three Eyes See More than Two - monitoring a catalytic reaction with three different microscopies under exactly the same conditions in real time

Information is obtained that none of the methods alone could reveal

30-Sep-2022

One has to look very closely to exactly understand what processes take place on the surfaces of catalysts. Solid catalysts are often finely structured materials made of tiny crystals. There are various microscopies to monitor chemical processes on such surfaces – they use, for example, ...

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Miniaturized Lab-on-a-Chip for real-time Chemical Analysis of Liquids

A fingertip-sized chip replaces bulky laboratory equipment: The possible applications are extremely diverse

01-Sep-2022

An infrared sensor has been developed at TU Wien (Vienna) that analyses the content of liquids within the fraction of a second. In analytical chemistry, it is often necessary to accurately monitor the concentration change of certain substances in liquids on a time scale of seconds. Especially in ...

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The electron slow motion: How do different materials react to the impact of ions?

Femtosecond journey through graphene

23-Aug-2022

When ions penetrate a material, highly complex processes take place - so fast that they could hardly be analyzed until now. But sophisticated measurements have now made it possible. How do different materials react to the impact of ions? This is a question that plays an important role in many ...

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A quantum wave in two crystals

Breakthrough in neutron physics

21-Jul-2022

Particles can move as waves along different paths at the same time – this is one of the most important findings of quantum physics. A particularly impressive example is the neutron interferometer: neutrons are fired at a crystal, the neutron wave is split into two portions, which are then ...

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Controlling Cells with a Laser Beam

When biological tissue is created in the laboratory, nothing should be left to chance

31-May-2022

At TU Wien, a method was developed to guide individual cells to the right place with laser precision. It is one of the biggest problems with producing artificial tissue: How can the individual cells be directed to the right place, for example when a blood vessel is to be created at a very ...

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The platinum riddle

How a chemical reaction takes place that, at first glance, should not be possible at the temperatures observed

05-Apr-2022

What happens when a cat climbs onto a sunflower? The sunflower is unstable, will quickly bend, and the cat will fall to the ground. However, if the cat only needs a quick boost to catch a bird from there, then the sunflower can act as a "metastable intermediate step". This is essentially the ...

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Terahertz radiation source: Compact and simple

A novel, simple and extremely compact radiation source for terahertz waves: The possible applications are manifold.

13-Jan-2022

Terahertz radiation has a wavelength of typically a little less than one millimetre - a technically difficult range. Electromagnetic waves with longer wavelengths can be generated with ordinary electronic components (such as transistors) and antennas. Smaller wavelengths can be obtained with ...

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Detective work on the fuel cell

Researchers are investigating new materials that can be used to reduce the operation temperature of solid oxide fuel cells: To do so, they apply an innovative method

02-Dec-2021

Solid oxide fuel cells consist of three important parts: an anode, a cathode and an electrolyte. While oxygen is incorporated into the cathode, oxygen is then transported through the electrolyte to the anode, where oxygen reacts with hydrogen to water. The fuel cell is able to convert the energy ...

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Researchers have succeeded for the first time in analyzing nanovesicles and proteins in parallel

This is important to determine the quality of a sample and to clearly attribute effects to the transport vesicles

26-Oct-2021

To transport substances between cells, they are packaged in nanovesicles. The small vesicles are surrounded by a lipid layer and fuse with the cell membrane at their destination. Within the body, they control many important processes. However, it is still unclear whether the influence in ...

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The bitumen puzzle

Mix of methods provides new info

07-Jul-2021

Although the history of bitumen dates back to the third millennium BC, only little is known about its surface structure. Researchers from TU Wien are now shedding light on the nature of the bitumen surface using physicochemical analyses. While atomic force microscopy and scanning electron ...

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