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Sharper than ever: Physicists make molecular vibrations more detectable

The new method will improve the understanding of interactions in molecular systems and to further develop simulation methods

22-Sep-2022

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 ...

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Exploding and weeping ceramics

Researchers discover a path to a shape-shifting ceramic material

23-Nov-2021

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 ...

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Airy material with explosive power

New method for the generation of controllable electrical explosions

17-Nov-2021

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 ...

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Random effects make it difficult to optimise antibiotic therapy

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

28-Jul-2021

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 ...

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Molecular Assistance: Molecule layer aids chemoselective hydrogenation on solid palladium catalysts

How to obtain a palladium catalyst for the selective hydrogenation of acrolein

24-Jun-2021

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 ...

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Nano coatings with many functions

Materials scientists synthesize nanoscale gradient copolymers with contradictory properties for the first time

05-Nov-2020

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 ...

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Analysing molecular structures in more detail

New NMR methods for investigating paramagnetic complexes and supramolecular cages developed

21-Sep-2020

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 ...

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New toolbox for the nanooptics allows the theoretical description to the highest accurate level possible

Physicist demonstrates the dynamics of electron-light interaction originating from first principle

02-Sep-2020

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 ...

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Scientists get atomistic picture of platinum catalyst degradation

Extraction and dissolution of Platinum atoms revealed by X-ray diffraction

26-Aug-2020

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 ...

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Microplastics transport metallic pollutants

Pursuing the Trojan horse: Scientists are developing methods for measuring metal in microplastics

27-Jul-2020

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 ...

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