Professor Owe Orwar and his team of scientists from Chalmers, and the Université Paris Diderot, France, show that adhering lipid bilayer membranes and cell membranes can break in fractal patterns just as plastics and other solid materials.
It has been generally accepted that bilayer membranes rupture only through circular pore formation. However, when the Chalmers team studied membrane, and cell spreading on solid supports, different rupture morphologies and dynamics were observed.
Ruptures proceeded in a series of rapidly intermittent avalanches, causing fractal membrane fragmentation-very much like crack propagation in earth quakes.
Cell membrane rupture under mechanical load is an important physiological process, and since membrane adhesion is widespread in biological cells, the results suggest that the newly discovered rupture mechanism is also naturally occurring.
The work was possible through generous grants by the European Research Council (ERC advanced grant) and by the Knut and Alice Wallenberg Foundation.Further information: Owe Orwar, Professor of Biophysical Chemistry at the Department of Chemical and Biological Engineering.tel +46 (0)31 -772 3060
Pressofficer Sofie Hebrand; firstname.lastname@example.org; +46 736-79 35 90
Sofie Hebrand | idw
NYSCF researchers develop novel bioengineering technique for personalized bone grafts
18.07.2018 | New York Stem Cell Foundation
Pollen taxi for bacteria
18.07.2018 | Technische Universität München
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
18.07.2018 | Life Sciences
18.07.2018 | Materials Sciences
18.07.2018 | Health and Medicine