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30 Current news of Helmholtz-Zentrum Berlin für Materialien und Energie

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Water distribution in the fuel cell made visible in 4D

The analysis opens new possibilities for more efficient and thus more cost-effective fuel cells

09-Jun-2022

Teams from Helmholtz-Zentrum Berlin (HZB) and University College London (UCL) have visualised the water distribution in a fuel cell in three dimensions and in real time for the first time by evaluating neutron data from the Berlin Experimental Reactor shut down in 2019. The analysis opens new ...

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Liquid crystals for fast switching devices

Simple rod-shaped molecules with a single center of chirality self-assemble into helical structures at room temperature

08-Dec-2021

An international team has investigated a newly synthesized liquid-crystalline material that promises applications in optoelectronics. Simple rod-shaped molecules with a single center of chirality self-assemble into helical structures at room temperature. Using soft X-ray resonant scattering at ...

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New world record in materials research - X-ray microscopy with 1000 tomograms per second

"This method opens a door for the non-destructive study of fast processes in materials, which is what many research groups and also industry have been waiting for"

29-Sep-2021

Tomoscopy is an imaging method in which three-dimensional images of the inside of materials are calculated in rapid succession. Now a team led by HZB physicist Francisco García Moreno has achieved a new world record at the TOMCAT beamline of the Swiss Light Source at the Paul Scherrer Institute: ...

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New insights into switchable MOF structures

03-Jun-2021

Metal-organic framework compounds (MOFs) are widely used in gas storage, material separation, sensor technology or catalysis. A team led by Prof. Dr. Stefan Kaskel, TU Dresden, has now investigated a special class of these MOFs at the MX beamlines of BESSY II. These are "switchable" MOFs that can ...

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Nanopatterns of proteins detected by cryo-electron microscopy

Nanostructures for electronics, catalysis, medicine

22-Oct-2020

A team from Helmholtz-Zentrum Berlin (HZB) used cryo electron microscopy to detect regular, two-dimensional structures in the form of Pascal triangles in a shock frozen protein material. The samples have been synthesized by a Chinese research group. The method of cryo electron microscopy has the ...

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Ultra-fast switching of helicity of circularly polarized light pulses

The ultra-fast change of light helicity is particularly interesting to observe processes in magnetic materials

03-Apr-2020

At the BESSY II storage ring, a joint team of accelerator physicists, undulator experts and experimenters has shown how the helicity of circularly polarized synchrotron radiation can be switched faster - up to a million times faster than before. They used an elliptical double-undulator developed ...

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Coronavirus: BESSY II data accelerate drug development

23-Mar-2020

A coronavirus is keeping the world in suspense. SARS-CoV-2 is highly infectious and can cause severe pneumonia with respiratory distress (COVID-19). Scientists are doing research in order to prevent the viruses from multiplying. A team from the University of Lübeck has now found a promising ...

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Nanoparticles can change cells

14-Feb-2020

Nanoparticles easily enter into cells. New insights about how they are distributed and what they do there are shown for the first time by high-resolution 3D microscopy images from BESSY II. For example, certain nanoparticles accumulate preferentially in certain organelles of the cell. This can ...

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Watching complex molecules at work

17-Jan-2020

A new method of infrared spectroscopy developed at BESSY II makes single-measurement observation and analysis of very fast as well as irreversible reaction mechanisms in molecules feasible for the first time. Previously, thousands of such reactions have had to be run and measured for this ...

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Malaria pathogens under the X-ray microscope

X-ray microscopy at BESSY II reveals how antimalaria-drugs might work

04-Nov-2019

Malaria is one of the most threatening infectious diseases in the world. An international team has now been able to investigate malaria pathogens in red blood cells in vivo using the BESSY II X-ray microscope and the ALBA and ESRF synchrotron sources. The scientists reveal the mechanisms used by ...

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