Researchers at PSI and the University of Barcelona have managed to explain the strange behaviour of microgels. Their measurements using neutron beams have pushed this measuring technique to its limits. The results open up opportunities for new applications in materials and pharmaceutical research.
Aggregates of amyloid beta- (Aβ-)peptide, known as fibrils, are one of the hallmarks of Alzheimer’s disease and play a key role in the sequence of events leading to dementia symptoms. Using small-angle neutron and X-ray scattering, researchers from Lund University and the Paul Scherrer Institut have determined the detailed structure of Aβ42-fibril, obtaining important information to design future therapeutics.
Scientists at Forschungszentrum Jülich and Donghua University in Shanghai, China, have demonstrated a skin-like synthetic material intended to advance the development of so-called “wearables”, as well as smart clothing and artificial skin for robots. Neutrons from the Heinz Maier-Leibnitz research neutron source helped them to study the new material in detail.
When metallic objects change their shape seemingly without any external influence and only according to the will of their owners, this at first sounds like something only comic superheroes like Magneto and Ironman could do. However, the idea from those comics has a real-world manifestation in existing materials called magnetic shape memory alloys (MSMAs). Moreover, they have potential applications e.g. in robotics or medical devices.
Scientists at the Institut Laue-Langevin (ILL), in collaboration with the Paul Scherrer Institut (PSI), the Institut de Biologie Structurale (IBS) and the Australian Nuclear Science and Technology Organisation (ANSTO), have published new data on how the SARS-CoV-2 spike protein interacts with mammalian lung cell membranes allowing the viral RNA to enter human cells.
Key ingredients in toothpastes and mouthwashes can occasionally act as irritants to the inside of the mouth. By looking at the way these ingredients interact with thin films of spit, researchers hope to develop new, less irritant, formations.
Significant amounts of antibiotic residues and pathogens enter the environment via our wastewater. A German Italian team of researchers has now investigated a novel nanomaterial that has an antibacterial effect and can bind antibiotics at the Heinz Maier-Leibnitz Zentrum. Wastewater could thus be treated more effectively and safely.
Depressive disorders are among the most frequent illnesses worldwide. The causes are complex and to date only partially understood. The trace element lithium appears to play a role. Using neutrons of the research neutron source at the Technical University of Munich (TUM), a research team has now proved that the distribution of lithium in the brains of depressive people is different from the distribution found in healthy humans.
Biocompatible iron oxide nanoparticles (IONPs) offer great potential for biomedical applications, both in terms of imaging and therapy. More rapid progress in researching IONPs now looks promising by using a new method combination developed by a team of Jülich researchers using neutrons as a probe.
Neutron reflectometry has given scientists an atomic-level insight into the behaviour of Bcl-2, a protein that promotes cancerous cell growth.
