Now two research groups from the University of Cambridge, led by Professor Ray Goldstein of the Department of Applied Mathematics and Theoretical Physics, and Professor Lynn Gladden of the Department of Chemical Engineering and Biotechnology, have done just that. Their findings are published in volume 642 of Journal of Fluid Mechanics, published by Cambridge University Press.
They have studied the giant cells of the Characean algae – cells that can measure up to 10cm in length and 1mm in diameter. This exceptional size makes the standard methods of distributing material within cells impossible, so Characean algae have long been known to employ ‘conveyor belts’ along their cellular walls to move food and waste around. It is the spatial distribution of the velocity of this movement that has been measured for the first time using state-of-the art magnetic resonance imaging techniques.
The impact of their discoveries and research techniques will be far-reaching. Professor Squires comments: “[The methods used] are incredibly powerful and have the potential to revolutionise our understanding of a wide range of environmentally and industrially relevant fluid flows. The technique is completely non-invasive, requires no flow tracers and can be performed in non-transparent materials."
Looking to the future, Professor Squires stated that this study ‘should serve as a potent reminder that the immense variety of organisms on Earth contains a wealth of expertise that may be mined for biomimetic [i.e. nature-imitating] solutions.’
Hannah Gregory | alfa
Working the switches for axon branching
26.09.2018 | Max-Planck-Institut für Biochemie
Diversity in the brain – How millions of neurons become unique
26.09.2018 | Universität Basel
Our brain is a complex network with innumerable connections between cells. Neuronal cells have long thin extensions, so-called axons, which are branched to increase the number of interactions. Researchers at the Max Planck Institute of Biochemistry (MPIB) have collaborated with researchers from Portugal and France to study cellular branching processes. They demonstrated a novel mechanism that induces branching of microtubules, an intracellular support system. The newly discovered dynamics of microtubules has a key role in neuronal development. The results were recently published in the journal Nature Cell Biology.
From the twigs of trees to railroad switches – our environment teems with rigid branched objects. These objects are so omnipresent in our lives, we barely...
The Fraunhofer FEP has been involved in developing processes and equipment for cleaning, sterilization, and surface modification for decades. The CleanHand Network for development of systems and technologies to clean surfaces, materials, and objects was established in May 2018 to bundle the expertise of many partnering organizations. As a partner in the CleanHand Network, Fraunhofer FEP will present the Network and current research topics of the Institute in the field of hygiene and cleaning at the parts2clean trade fair, October 23-25, 2018 in Stuttgart, at the booth of the Fraunhofer Cleaning Technology Alliance (Hall 5, Booth C31).
Test reports and studies on the cleanliness of European motorway rest areas, hotel beds, and outdoor pools increasingly appear in the press, especially during...
The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved (nearly) freely in a quark-gluon plasma.
This is a joint press release of University Muenster and Heidelberg as well as the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt.
Then, in a phase transition, they combined and formed hadrons, among them the building blocks of atomic nuclei, protons and neutrons. In the current issue of...
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.
"It is not enough simply to bring more light into the cell," says Christiane Becker. Such surface structures can even ultimately reduce the efficiency by...
A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.
Scientists established the new species, Thesea dalioi, by comparing its physical traits, such as branch thickness and the bright red colony color, with the...
21.09.2018 | Event News
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26.09.2018 | Life Sciences
25.09.2018 | Health and Medicine