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108 Current news of rub
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Copper is effective against Sars-Cov-2 on surfaces – silver is not
Silver nanopatches leave the virus unimpressed
09-May-2022
Copper and silver are known for their antibacterial properties. Researchers from Bochum have explored their effectiveness against viruses. Silver and copper ions wipe out many pathogens. That’s why implants and medical instruments, for example, are coated with these metals. Researchers from ...
A sieve for molecules
“Materials like this with selective permeability are in high demand in industry”
09-Mar-2022
Scientists have long tried to use graphene, which is composed of carbon, as a kind of sieve. But this material doesn’t have any pores. Now, a team has found an alternative material which comes with pores from the outset. Researchers from Bielefeld, Bochum and Yale have succeeded in producing a ...
Molecular machine in nano cage
What a toy: a tiny gyroscope that would fit in a human cell and that can be controlled from the outside
01-Feb-2022
In cooperation with an international team at the Institute for Basic Science in South Korea, theoretical chemists Dr. Chandan Das and Professor Lars Schäfer from Ruhr-Universität Bochum (RUB) have constructed a molecular gyroscope that can be controlled remotely by light. They also succeeded in ...
Unexpected energy storage capability where water meets metal surfaces
Capacitively stored charge at platinum interfaces can be significantly higher than previously assumed
20-Jan-2022
A new method can measure the electrical (re-)charging of boundary layers between very small, metallic particles and aqueous solutions and understand it at a molecular level. Researchers from the RESOLV Cluster of Excellence at Ruhr-Universität Bochum (RUB) have used current and voltage ...
A treasure map for the realm of electrocatalysts
Research into promising materials is hampered by the sheer number of possible candidates: An efficient method to solve this problem now developed
17-Jan-2022
Efficient electrocatalysts, which are needed for the production of green hydrogen, for example, are hidden in materials composed of five or more elements. A team from Ruhr-Universität Bochum (RUB) and the University of Copenhagen has developed an efficient method for identifying promising ...
Catalyst surface analysed at atomic resolution
Particles observed during the catalysis process
12-Jan-2022
Catalyst surfaces have rarely been imaged in such detail before. And yet, every single atom can play a decisive role in catalytic activity. A German-Chinese research team has visualised the three-dimensional structure of the surface of catalyst nanoparticles at atomic resolution. This structure ...
A seemingly unattainable energy transition
Researchers have managed to address an unusual energy transition in a semiconductor
29-Nov-2021
Researchers from Basel and Bochum have succeeded in addressing an apparently unattainable energy transition in an artificial atom using laser light. Making use of the so-called radiative Auger process, they were the first team to specifically excite it. In this process, an electron falls from a ...
How positively and negatively charged ions behave at interfaces
When charged particles enter the boundary layer between a liquid and an electrode, they first have to strip off their water shells
24-Nov-2021
How positively and negatively charged ions behave at the interface between a solid surface and an aqueous solution has been investigated by researchers from the Cluster of Excellence RESOLV at the Ruhr-Universität Bochum, its sister research network CALSOLV in Berkeley, and the University of Evry ...
How Confined Protons Migrate
When less than two nanometers of space is available, there is a traffic jam in the proton transport network
10-Sep-2021
Protons in aqueous solution can usually migrate very quickly – much faster compared to other ions. However, this only applies when they are in a space greater than two nanometers, as a study from Ruhr University-Bochum and the University of California Berkeley shows. In confined spaces the ...
Step by step to the end product through enzyme catalysis
Enzymes from microorganisms can produce valuable chemical substances. In a cascade, they can do that even if they need different environmental conditions
02-Sep-2021
The production of the sugar trehalose, which is used as a functional food and an additive in pharmaceutical products or in cosmetics, is a team effort for enzymes: One takes care of the construction of an energy-rich intermediate product (UDP-glucose), from which the second then makes trehalose. ...
