An international team of researchers has now used neutrons to visualize the proton transfer in the enzyme ascorbate peroxidase for the first time in detail and suggested reaction pathways.
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These are official press releases, which have been sent to journalists by the cooperation partners (Forschungszentrum Jülich, Technische Universität München, Helmholtz-Zentrum Geesthacht, Helmholtz Zentrum Berlin). They present scientific highlights, which have been achieved at the MLZ.
An international team of researchers has now used neutrons to visualize the proton transfer in the enzyme ascorbate peroxidase for the first time in detail and suggested reaction pathways.
On July 1, Dr. Axel Pichlmaier takes up the post of Technical Director of the Heinz Maier-Leibnitz research neutron source. The 51-year-old physicist brings with him experience from neutron research as well as from reactor operation and nuclear supervision.
Progress in developing a lower enriched fuel with monolithic uranium-molybdenum. Technical University of Munich (TUM) and Framatome are working together on the development of a new fuel. The first prototypes will be produced at the beginning of 2021 and are expected to go into production by 2022.
Researchers worldwide are trying to develop drugs or a vaccine against the coronavirus SARS-CoV-2. In view of the corona pandemic, the Heinz Maier-Leibnitz Zentrum (MLZ) also offers special access to measurements with neutrons, which can provide important insights into the behaviour of the virus.
The Heinz Maier-Leibnitz Research Neutron Source receives around 350,000 euros in funding from the EU to continue its cooperation with large-scale Russian research institutions. The project CREMLINplus was officially launched in Hamburg at the end of February.
Freeze drying has provided us with tasty dried fruits in muesli, long-life yoghurt cultures and many other important products. For the first time, using neutron beams from the Heinz-Maier-Leibnitz (FRM II) research neutron source, a team of scientists has now been able to show us the drying process in detail. The process engineering has thus gained a method of testing theoretical models in practice.
Did Oviraptoridchicks hatch at the same time? Researchers at the University of Bonn and the TU Munich provide presumptive evidence
After an involuntary interruption, the FRM II will again supply neutrons to its users from science, industry and medicine from today, 14 January.
More than 500 visitors enjoyed a guided tour at the Research Neutron Source’s Open Day and Mouse Day again this year. In addition to the visitors’ tours, children and adults enjoyed a colorful accompanying program in the physics department.
The Technical University of Munich (TUM) is participating in the construction of two measuring instruments at the European Spallation Neutron Source (ESS) in Sweden. The Federal Ministry of Education and Research (BMBF) is funding this project, with material and human resources, to the tune of around 15 million euros. Now the people responsible at the ESS in Lund and the FRM II in Garching have signed the contracts of cooperation.
Technische Universität München as operator of the neutron source Heinz Maier-Leibnitz (FRM II) actively participates in international fuel research with the aim to develop new nuclear fuels with lower enrichment and increased uranium density for high performance research reactors such as the FRM II. The working group “High density fuels” works on the three main pillars fuel development, fuel manufacturing and theoretical core modelling.
The two TUM institutes, Forschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM II) and Radiochemie München (RCM), have applied to the District Office of Munich for a higher water law permit. In a public hearing on 23 July 2019 in the Ismaninger Bürgersaal, objectors and affected parties were able to express their concerns and discuss them openly with the applicant and the responsible authorities.
The elected representation of neutron researchers in Germany (German Committee Research with Neutrons, KFN) descibes the importance of neutron research at FRM II for the whole society in an open letter. It asks for a quick solution of the present transport problem to allow the efficient use of FRM II, which will be the only neutron source in Germany in the upcoming years.
With a new spray coating process, very uniform layers of cellulose nanofibers (CNF) can be produced on an industrial scale. X-ray investigations at DESY as well as investigations with an atomic force microscope and neutron scattering at the MLZ, show how the layer is structured and can be tailored for different purposes. A Swedish-German research team led by DESY scientist Adj. Prof. Dr. Stephan Roth presents its structural analyses in the journal “Macromolecules”.
At this year’s internal workshop in Grainau, the focus was on an extensive exchange with colleagues on the future perspectives and strategies of the MLZ. The conference was also characterised by a broad spectrum of exciting lectures and discussions. The picturesque surroundings invited to excursions and sportive hikes.
An exciting research question, a highly regarded fellowship, some very cool neutrons, and of course the prospect of a big mug of German beer. This is what drove Dr. Sergio Raul Soria from his study site in Bariloche, Argentina, to the MLZ in Garching.
Magnetism research with neutrons – the number 1 topic at the MLZ conference in picturesque Lenggries. In their varied lectures, world-renowned speakers reported on various research topics in magnetism that are to revolutionize future information and quantum technologies.
The Heinz Maier-Leibnitz Zentrum (MLZ) and the French Neutron Scattering Federation (2DFN) organized a German-French workshop on the research campus in Garching from the 14th until the 16th May 2019. As two national neutron sources in Germany and France will be decommissioned at the end of 2019, the European neutron landscape will change. Therefore, the workshop served to discuss the opportunity of an enhanced French-German cooperation among European neutron scientists.
In the pantheon of unconventional superconductors, iron selenide is a rock star. But new experiments by U.S., Chinese and European physicists have found the material’s magnetic persona to be unexpectedly mundane. The group published the results in Nature Materials.
Electrons and their atomic nuclei influence their respective motions in more materials than previously assumed. Scientists from the Technical University of Munich (TUM) and the Forschungszentrum Jülich made this discovery during measurements conducted at TUM’s research neutron source Heinz Maier-Leibnitz (FRM II). Possible applications for the effect they identified include data processing and zero-loss transmission of electricity.
In toothpaste, Teflon, LEDs and medications, it shows its sunny side – but elemental fluorine is extremely aggressive and highly toxic. Attempts to determine the crystal structure of solid fluorine using X-rays ended with explosions 50 years ago. A research team has now clarified the actual structure of the fluorine using neutrons from the Heinz Maier Leibnitz Research Neutron Source (FRM II).
Members of a strategic consortium of neutron research facilities in Europe, the League of advanced European Neutron Sources (LENS), officially launched activities to promote collaboration on neutron usage, technology development, innovation, data, education, and strategies. By aligning policies among its partners, LENS will advocate for the user community and strengthen European neutron science.
Physicists from the University of Luxembourg, the Heinz Maier-Leibnitz Zentrum (MLZ) and a team of research partners have demonstrated for the first time in a comprehensive study how different magnetic materials can be examined using small-angle neutron scattering. The scientists around Dr. Sebastian Mühlbauer (MLZ, Technical University of Munich) and Prof. Dr. Andreas Michels (University of Luxemburg) have published their insights in “Reviews of Modern Physics,” the respected science journal of the American Physical Society.
New research published in Nature Communications may help scientists understand the cause of the rare and incurable disease transthyretin amyloidosis. A team of scientists based at Keele University (UK) and the Institut Laue-Langevin (France) has been trying to understand the mechanism by which the disease is caused. Neutron crystallographic measurements were carried out using both the ILL LADI-III diffractometer (operated by Matthew Blakeley) and MLZ’s neutron diffraction instrument BIODIFF with the help of MLZ scientist Andreas Ostermann. The neutron structures were important in visualizing specific details of molecular structure and drug interactions.
Salt apparently affects allergic immune reactions. A team working with Prof. Christina Zielinski at the Technical University of Munich (TUM) has demonstrated in cell cultures that salt leads to the formation of Th2 cells. These immune cells are active in allergic conditions such as atopic dermatitis. The team also detected elevated salt concentrations in the skin of patients.
For the first time, scientists of the Technical University of Munich (TUM) and the Max Planck Institute for Plasma Physics (IPP) have trapped positrons in a magnetic cage without losses. This is an important step towards a matter-antimatter plasma of electrons and their antiparticles, the positrons, which are assumed to occur in the vicinity of neutron stars and black holes.
In an article published online now in Science Advances, a team of scientists from the USA and Germany offer an explanation of how a particular phase-change memory (PCM) material can work a thousand times faster than current flash computer memory, while being significantly more durable with respect to the number of daily read-writes. They have studied the material at the MLZ instrument TOFTOF.
Representatives of eight European research infrastructures signed the Charter of the League of advanced European Neutron Sources (LENS) today at the International Conference of Research Infrastructures, ICRI2018.
For the first time a team of researchers have discovered with the help of neutrons at the instrument SANS-1 two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
The world’s highest-performance neutron source for research, FRM II of the Technical University of Munich (TUM), will have a new Scientific Director as of April 1st. With the appointment of Professor Peter Müller-Buschbaum, an internationally renowned researcher has been appointed to succeed Winfried Petry.
Developers from Bosch and scientists at the Technical University of Munich (TUM) are using neutrons to analyze the filling of lithium ion batteries for hybrid cars with electrolytes. Their experiments show that electrodes are wetted twice as fast in a vacuum as under normal pressure.
Drugs can alter the structure of cell membranes. This in turn can affect their function and cause undesirable side effects. The structural changes in cell membranes caused by drugs have not yet been sufficiently investigated. Researchers from Jülich, Garching (near Munich), Georgia, and France now want to change this. They have developed a new neutron research method which enables deformations of the membranes to be detected faster and more easily than previous methods.
On October 31, 1957, the Munich research reactor FRM went online for the first time. Until 2000, the “Atomic Egg” of the Technical University of Munich (TUM) was a reliable provider of neutrons for basic research and medical applications. This year the facility is celebrating its 60th birthday with a special exhibition.
In the journal Science, a Chinese–German team of researchers has presented a novel synthetic antiferromagnetic material which may prove pioneering for progress in nanomedicine and information technology. Up until now, synthetic antiferromagnets have been manufactured primarily from transition metals and alloys. The scientists from the University of Science and Technology of China in Hefei manufactured a different kind of antiferromagnet consisting of several oxide layers only a few nanometres thick, whose properties can be adapted to various applications in a targeted manner. In collaboration with Forschungszentrum Jülich, the researchers used neutron measurements at Heinz Maier-Leibnitz Zentrum (MLZ) to show that the individual layers of the new material can be magnetized and their polarity reversed – meaning that the magnetic states can be switched in a controlled fashion.
Rechargeable lithium batteries with cathodes comprising nickel, manganese, and cobalt, are viewed as the most potent today. But they, too, have a limited lifespan. Already in the first cycle they lose up to ten percent of their capacity. Why this happens and what can be done to alleviate the ensuing gradual loss of capacity has now been investigated in detail by a team of scientists using positrons at the Technical University of Munich (TUM).
First groundbreaking ceremony for the new science and technology building of the Technical University of Munich as well as the laboratory and office building of the Research Center Jülich for use by the Heinz Maier-Leibnitz Zentrum (MLZ): (from left to right) Prof. Dr. Winfried Petry (Scientific Director of Research Neutron Source FRM II), Prof. Dr. Dr. hc Mult. Wolfgang A. Herrmann (President of the Technical University of Munich), Dr. Anton Kastenmüller (Technical Director of the Research Neutron Source FRM II), Prof. Dr. Thomas Brückel (Director of the Jülich Center for Neutron Science and Spokesman of the MLZ Directorate), Stefan Müller MdB (Parliamentary State Secretary, Federal Ministry of Education and Research (BMBF)), Prof. Dr. Dr. hc Mult. Sebastian M. Schmidt (Member of the Board, Research Center Jülich), Dr. Dietmar Gruchmann (First Mayor of the City of Garching).
The German DFG has granted support for the development of a pulsed positron source that will enable investigations of exotic states of matter and mixes of matter and antimatter with 750,000 euros.
There is a strong suspicion that Helicobacter pylori is linked to the development of stomach cancer. Now an international team of researchers led by Prof. Donald R. Ronning (University of Toledo, USA) has used neutrons to unlock the secret to the functionality of an important enzyme in the bacterium’s metabolism. This could be used as a point of attack for new medications. The team made the corresponding measurements at the neutron sources in Oak Ridge (USA) and at the research neutron source reactor FRM II of the Technical University of Munich (TUM).
The German Federal Ministry of Education and Research (BMBF) has given 13.5 million Euros to fund a number of projects at the Heinz Maier-Leibnitz Zentrum (MLZ). The projects are to be realized by ten different universities over the next three years, including seven projects at the Technical University of Munich (TUM). The Ministry has also given 2.7 million Euros to support the integration of instruments in the new Neutron Guide Hall East at the Heinz Maier-Leibnitz research neutron source (FRM II).
Physics can also taste very sweet – this is one of the things that the pupils from grade 3 of the elementary school Garching Ost learned during their visit at the Research Neutron Source Heinz Maier-Leibnitz. They made an atom model from toothpicks and marsh mallows and tried their abilities as neutron scatterers at a neutron ball toss.
An international research team has discovered the mechanism by which a pharmaceutical excipient from the class of block copolymers improves the solubility of large quantities of a poorly water-soluble active substance. The results form the basis for the development of a drug delivery system better tolerated by the human body.
For her doctoral thesis “Thermal Conductivity of High Density Uranium-Molybdenum Fuels for Research Reactors” Dr. Tanja Huber is awarded the Karl Wirtz Prize of the German Nuclear Society (KTG) today.
A key issue with lithium ion batteries is aging. It significantly reduces their potential storage capacity. To date, very little is known about the causes of the aging effects. Scientists from the Department of Technical Electrochemistry and the Research Neutron Source FRM II at the Technical University of Munich (TUM) have now come a step closer to identifying the causes in their latest experiments.
Usually, harvesting energy and raw materials from plants requires many process steps and aggressive chemicals. To make these processes more efficient and resource saving, researchers are looking for suitable enzymes. Using neutrons, researchers have now investigated the reaction mechanism of an important class of enzymes – the glycosidases. The measurements were made at the neutron sources in Los Alamos and Oak Ridge (USA), as well as at the research neutron source FRM II of the Technical University of Munich (TUM). The results provide the key to improving large-scale technical processing of biomass.
How mobile individual polymers are reveals a lot about their macroscopic properties. Neutron researchers at Forschungszentrum Jülich have now found a much easier and more accurate way of investigating the often decisive lateral deflection of molecules. They use ring-shaped molecules as probes, which wrap themselves around the polymer chains and follow their lateral motion.
Today a new cooperation project starts, which is headed by MLZ partner JCNS: CREMLIN (Connecting Russian and European Measures for Large-scale Research Infrastructures) shall promote the EU-Russia cooperation in the planning, construction and scientific use of large scale facilities.
New Study shows Correlation between Microscopic Structures and Macroscopic Properties
The scientists were able to detect structural changes using a model system of phospholipids from soy plants with the help of neutron scattering techniques at the Heinz Maier-Leibnitz Zentrum in Garching near Munich.
Measurements at the three axes spectrometer PUMA have now been published in the renowned journal Nature Communications.
Measurements using positrons could help to develop better coatings for drugs.
Lithium-ion batteries are seen as a solution for energy storage of the future and have become indispensible, especially in electromobility. Their key advantage is that they are able to store large amounts of energy but are still comparatively light and compact.
Neutron scattering experiment at PUMA resolves a contentious superconducting issue.
Neutrons shed light on vital enzymes’ mechanism of action
In the future, antineutrino detectors may provide an additional option for monitoring. Physicists at Technische Universitaet Muenchen (TUM) have now found interesting results using fast neutrons from the Heinz Maier Leibnitz Zentrum.
Experiments with neutrons at the Technische Universität München (TUM) show that the antidepressant lithium accumulates more strongly in white matter of the brain than in grey matter.
The world’s strongest neutron beam is produced by the scientific instrument PGAA at the FRM II. But that is not all: During the long maintenance break in 2011, the PGAA (Prompt Gamma Activation Analysis) was improved to give it the best ratio between usable neutrons and noisy background radiation worldwide.
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