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46 Current news of Christian-Albrechts-Universität zu Kielrss
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The new method will improve the understanding of interactions in molecular systems and to further develop simulation methods
In molecules, the atoms vibrate with characteristic patterns and frequencies. Vibrations are therefore an important tool for studying molecules and molecular processes such as chemical reactions. Although scanning tunnelling microscopes can be used to image individual molecules, their vibrations ...
Researchers discover a path to a shape-shifting ceramic material
From coffee cups to bathroom tiles, ceramics are brittle. Subject to the slightest deformation, they shatter. On the other end of the spectrum of materials, some of the most deformable materials known - that also support large stresses while they deform - are shape memory alloys. The origin of ...
New method for the generation of controllable electrical explosions
Theoretically, it only takes 450 grams of this material to lift an elephant: "Aerographene" owes this ability to its unique structure at the nano level. Visually similar to a black foam, it actually consists of a finely-structured tubular network based on graphene with numerous cavities. This ...
Research team from the Kiel Evolution Center investigates the role of a reduction in bacterial population size and resulting random effects in the evolution of antibiotic resistance
Antibiotic-resistant pathogens have become one of the greatest threats to public health. In just a few years, previously harmless bacterial infections may no longer be treatable and may once again become a leading non-natural cause of death, as they were before the antibiotic era began until the ...
How to obtain a palladium catalyst for the selective hydrogenation of acrolein
Chemical reactions don’t always go to plan. Unwanted by-products lead to extra costs and waste resources. Selective catalysts can help, but chemists have to test out large numbers before they find the right fit. Researchers have now investigated, on an atomic level, how to obtain a palladium ...
Materials scientists synthesize nanoscale gradient copolymers with contradictory properties for the first time
Materials that simultaneously have contrasting properties – for example, they are soft on the one hand and hard on the other, the transition is gradual - could enable completely new applications like gradual anti-reflective lenses. In nature, such merging properties are indeed common, for example ...
New NMR methods for investigating paramagnetic complexes and supramolecular cages developed
Chemistry and structural biology use the standard methods of NMR spectroscopy (NMR = nuclear magnetic resonance) to examine the structure of molecules including large molecules like proteins in solution. The NMR active nuclei, such as hydrogen atoms, are excited using radiofrequency pulses in ...
Physicist demonstrates the dynamics of electron-light interaction originating from first principle
With the highest possible spatial resolution of less than a millionth of a millimetre, electron microscopes make it possible to study the properties of materials at the atomic level and thus demonstrate the realm of quantum mechanics. Quantum-physical fundamentals can be studied particularly well ...
Extraction and dissolution of Platinum atoms revealed by X-ray diffraction
Degradation of platinum, used as a key electrode material in the hydrogen economy, severely shortens the lifetime of electrochemical energy conversion devices, such as fuel cells. For the first time, scientists elucidated the movements of the platinum atoms that lead to catalyst surface ...
Pursuing the Trojan horse: Scientists are developing methods for measuring metal in microplastics
There are a relatively large number of studies on the accumulation and transport of persistent organic pollutants by microplastics, which has resulted in good data in this regard. Data, however, on the accumulation of metals that are toxic to the environment are very rare and sometimes ...