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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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Protection against COVID-19: experience is not always an advantage for the immune response

A good response to the SARS-CoV-2 vaccination is based on naive immune cells, whereas pre-existing memory cells are rather disadvantageous

16-Aug-2022

People who have often been infected by common cold viruses – which also belong to the coronaviruses – are not better protected against COVID-19, neither after infection with SARS-CoV-2 nor after vaccination. "We already showed in 2020 that earlier exposure to common cold viruses does not provide ...

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Breakthrough: Prospect of blood test for Parkinson’s disease for the first time

A new method reliably detects protein changes in blood that are typical of Parkinson's disease: "The results are really sensational"

22-Jun-2022

Until now, the diagnosis of Parkinson's disease has been based primarily on typical movement disorders such as muscle stiffness, slower movements and shaking. However, the disease starts up to twenty years before it becomes noticeable as a result of these symptoms. To date, there have been ...

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Previously unknown mode of bacterial growth discovered

Research teams use imaging and modelling to explain why single bacterial cells do not always grow exponentially

18-Nov-2021

Bacteria as unicellular organisms reproduce by dividing their entire organism. In this way, they can multiply particularly quickly, which allows the exponential growth of bacterial populations, also known from pathogens. The population growth is based on the growth of the individual bacterial ...

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Large genomic analysis highlights COVID-19 risk factors

An international collaboration uncovers several genetic markers associated with SARS-CoV-2 infection or COVID-19 severity

13-Jul-2021

In March of 2020, thousands of scientists around the world united to answer a pressing and complex question: what genetic factors influence why some COVID-19 patients develop severe, life-threatening disease requiring hospitalization, while others escape with mild symptoms or none at all? A ...

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Watching cell division live

Highest resolution insights into living cells

16-Apr-2021

Bacteria as unicellular organisms normally reproduce by binary cell division, i.e. the duplication of the entire organism consisting of a single cell. This allows particularly rapid multiplication, such as the exponential growth known from pathogens, and requires the separation and distribution ...

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COVID-19: Release of immature blood cells from bone marrow as a signature of severe disease

Research team has identified cell types in the blood that indicate severe disease progression in COVID-19

30-Nov-2020

In severe cases of COVID-19 disease, not only classic immune cells play a role. In particular, the release of immature precursor cells from the bone marrow into the blood indicates a particularly severe course of the disease and could contribute to complications. This has been shown by an ...

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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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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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