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Immune cells can be the body's defenders and foes at the same time
Malaria is one of the world's deadliest infectious diseases: a small mosquito bite delivers numerous malaria parasites into the bloodstream. The human body defends itself valiantly against the parasite, which usually results in periodic flu-like symptoms and severe fever. Severe cases of the ...
Telomeres on human chromosomes change together with brain structure
Telomeres are the protective caps of our chromosomes and play a central role in the ageing process. Shorter telomeres are associated with chronic diseases and high stress levels can contribute to their shortening. A new study now shows that if telomeres change in their length, that change is also ...
With elegant appendages, the bacteria increase their surface area and thus improve their food intake
For the first time, scientists in Bremen were able to observe bacteria forming pearl chains that protrude from the cell surface. These pearl chains serve to better absorb and store substances from the environment. Bacteria have no mouth. They eat by absorbing substances from their environment ...
For applications such as light-emitting diodes or solar cells, organic materials are nowadays in the focus of research. These organic molecules could be a promising alternative to currently used semiconductors such as silicon or germanium and are used in OLED displays. A major problem is that in ...
Liquid-like tissue behavior is a key principle for the formation of structures in biological systems
Researchers at the Max Planck Institute of Colloids and Interfaces in Potsdam have shown that growing bone tissue behaves like a viscous liquid on long time scales, thereby accepting forms with minimal surface area. This cell behavior determines the shape of the tissue when it grows on a ...
Tiny diamonds can cross the blood-brain barrier and be used for diagnostic and therapeutic purposes in the brain
The recording of images of the human brain and its therapy in neurodegenerative diseases is still a major challenge in current medical research. The so-called blood-brain barrier, a kind of filter system of the body between the blood system and the central nervous system, constrains the supply of ...
Water electrolysis could provide high-quality hydrogen gas that can be used in fuel cells directly. However, since noble metals, such as platinum and iridium, are currently needed to initiate such a reaction, the cost is very high. "Obviously, catalysts that are low-cost with high-activity are ...
Microscopy suggests that the recently discovered microbe Methanoliparia produces methane from crude oil all by themselves. The tiny organisms cling to oil droplets and perform a great feat: As a single organism, they may produce methane from oil by a process called alkane disproportionation. ...
Scientists show new mechanism of self-organization of living matter
Cells and microorganisms produce and consume all sorts of chemicals, from nutrients to signaling molecules. The same happens at the nanoscale inside cells themselves, where enzymes catalyze the production and consumption of the chemicals needed for life. In new work published in Physical Review ...
First and new realistic 3D model of the liver lobule since the year 1949
The currently used simplified model of mammalian liver tissue can only show in a limited way how liver tissue is structured and formed. Almost 70 years later, researchers at the Max Planck Institutes of Molecular Cell Biology and Genetics as well as for the Physics of Complex Systems together ...
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