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Results 81 - 100 of 721.


Chemistry - Materials Science - 04.01.2021
Innovative Battery Chemistry Revolutionises Zinc-Air Battery
Innovative Battery Chemistry Revolutionises Zinc-Air Battery
High-performance, eco-friendly, safe and at the same time cost-effective: the zinc-air battery is an attractive energy storage technology of the future. Until now, the conventional zinc-air battery has struggled with a high chemical instability, parasitic reactions which rooted in the usage of alkaline electrolytes lead to electrochemical irreversibility.

Chemistry - Materials Science - 04.01.2021
Supercapacitors challenge batteries
Powerful graphene hybrid material for highly efficient supercapacitors A team working with Roland Fischer, Professor of Inorganic and Metal-Organic Chemistry at the Technical University Munich (TUM) has developed a highly efficient supercapacitor. The basis of the energy storage device is a novel, powerful and also sustainable graphene hybrid material that has comparable performance data to currently utilized batteries.

Physics - Materials Science - 29.12.2020
Detective work in theoretical physics
Detective work in theoretical physics
Scientific articles in the field of physics are mostly very short and deal with a very restricted topic. A remarkable exception to this is an article published recently by physicists from the Universities of Münster and Düsseldorf. The article is 127 pages long, cites a total of 1075 sources and deals with a wide range of branches of physics - from biophysics to quantum mechanics.

Life Sciences - Materials Science - 23.12.2020
Scientists pioneer new method of measuring electricity in cells
Electricity is a key ingredient in living bodies. We know that voltage differences are important in biological systems; they drive the beating of the heart and allow neurons to communicate with one another. But for decades, it wasn't possible to measure voltage differences between organelles-the membrane-wrapped structures inside the cell-and the rest of the cell.

Physics - Materials Science - 22.12.2020
Berkeley Lab's Top 10 Science Stories of 2020
Berkeley Lab’s Top 10 Science Stories of 2020
It was a year dominated by COVID-19 research, along with some beetles, batteries, and a Nobel Prize T he coronavirus pandemic has taught us many valuable lessons this year, and perhaps foremost among them is the importance of science. Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have always strived to find science-based solutions for society's most pressing issues.

Materials Science - 22.12.2020
50 years old and as good as new
50 years old and as good as new
Since 1970 a worldwide unique test has been running in the Empa testing hall in Dübendorf, in which the long-term behaviour of bonded steel reinforcements on a concrete beam is being investigated. Investigations such as these have contributed to the fact that adhesive-bonded reinforcement is now state of the art as a strengthening method and that engineers have confidence in this retrofitting method.

Physics - Materials Science - 17.12.2020
Physics breakthrough of the year
Physics breakthrough of the year
International Team is awarded the Breakthrough of the Year 2020 prize by Physics World magazine For the development of a light-emitting silicon alloy, researchers from TU Eindhoven, Netherlands and the University of Jena, Germany together with partners from the University of Linz and TU Munich, are today (17 December) being awarded the " Breakthrough of the Year " prize by Physics World magazine.

Environment - Materials Science - 17.12.2020
How to power up battery manufacturing in India
India will need to make the switch from coal to renewable energy to meet its ambitious decarbonization goals. Batteries could be key to meeting these targets and represent an opportunity to develop the country's battery manufacturing industry. India is one of only a few countries whose national emissions reduction target is in line with the Paris Agreement's goal of reducing global warming before Earth's temperature reaches a dangerous threshold.

Physics - Materials Science - 16.12.2020
Big step with small whirls
Big step with small whirls
Skyrmions are small magnetic objects that could revolutionize the data storage industry and also enable new computer architectures. However, before they can be utilized in such applications, there are still a number of challenges that need to be overcome. A team of Empa researchers has now succeeded for the first time in producing a tunable multilayer system in which two different types of skyrmions - the future bits for "0" and "1" - can exist at room temperature, as they recently reported in the renowned .

Physics - Materials Science - 15.12.2020
Weak force has strong impact on nanosheets
Weak force has strong impact on nanosheets
Rice lab finds van der Waals force can deform nanoscale silver for optics, catalytic use You have to look closely, but the hills are alive with the force of van der Waals. Rice University scientists found that nature's ubiquitous "weak" force is sufficient to indent rigid nanosheets, extending their potential for use in nanoscale optics or catalytic systems.

Physics - Materials Science - 14.12.2020
When less is more: a single layer of atoms boosts the nonlinear generation of light
When less is more: a single layer of atoms boosts the nonlinear generation of light
A wide array of technologies, ranging from lasers and optical telecommunication to quantum computing rely on nonlinear optical interaction. Typically, these nonlinear interactions, which allow a beam of light, for example, to change its frequency, are implemented by bulk materials. In a new study an international research team led by the University of Vienna have shown that structures built around a single layer of graphene allow for strong optical nonlinearities that can convert light.

Physics - Materials Science - 09.12.2020
"Game changer" perovskite can detect gamma rays
Scientists at EPFL have developed a game-changing perovskite material that can be used as a cheaper and highly efficient alternative to gamma-ray detectors. Perovskites are materials made up of organic compounds bound to a metal. Propelled into the forefront of materials' research because of their structure and properties, perovskites are earmarked for a wide range of applications, including in solar cells, LED lights, lasers, and photodetectors.

Environment - Materials Science - 09.12.2020
New research project on environmental and safety aspects of stationary energy storage
New research project on environmental and safety aspects of stationary energy storage
The SABATLE project coordinated by TU Graz focuses on the sustainability and safety of redox flow technologies, which are of immanent importance for the stabilization of the power grid. The increasing use of battery technologies in the mobility sector and in stationary applications has been leading to increasing efforts in battery research of operational safety and battery recycling.

Health - Materials Science - 09.12.2020
This Anti-COVID Mask Breaks the Mold
This Anti-COVID Mask Breaks the Mold
Scientists from Berkeley Lab and UC Berkeley have designed a rechargeable N95 mask with a custom fit In the early days of the pandemic, amidst all the uncertainty, one thing was for sure: N95 masks - the personal protective respiratory devices that filter out viruses, bacteria, and wildfire smoke - were in short supply.

Environment - Materials Science - 06.12.2020
Disposable or fabric? Here is what matters
Disposable or fabric? Here is what matters
Anyone who wants to protect themselves and others from a COVID-19 infection wears a mask these days. But what about the environmental impact of this mass product, which is used millions of times over? Are masks made of fabric beneficial for the environment or are disposable masks preferable? Empa researchers have examined these questions using life cycle assessments (LCAs) and identified factors for sustainable design.

Life Sciences - Materials Science - 03.12.2020
Correctly Delivered and Integrated: How Proteins Find Their Place in the Cell
Correctly Delivered and Integrated: How Proteins Find Their Place in the Cell
Heidelberg Researchers determine the three-dimensional architecture of a molecular machine that inserts essential proteins into biomembranes Over a quarter of all proteins in a cell are found in the membrane, where they perform vital functions. To fulfil these roles, membrane proteins must be reliably transported from their site of production in the cell to their destination and correctly inserted into the target membrane.

Physics - Materials Science - 30.11.2020
Magnetic vortices come full circle
Magnetic vortices come full circle
The first experimental observation of three-dimensional magnetic 'vortex rings' provides fundamental insight into intricate nanoscale structures inside bulk magnets and offers a fresh perspective for magnetic devices. One of the main puzzles was why these structures are so unexpectedly stable - like smoke rings, they are only supposed to exist as moving objects Claire Donnelly Magnets often harbour hidden beauty.

Astronomy / Space Science - Materials Science - 27.11.2020
Laboratory experiments could unravel the mystery of the Mars moon Phobos
Laboratory experiments could unravel the mystery of the Mars moon Phobos
What causes the weathering of the Mars moon Phobos? Results from TU Wien give new insights, soon a spacecraft will retrieve soil samples. Of course, there is no weather in our sense of the word in space - nevertheless, soil can also "weather" in the vacuum of space if it is constantly bombarded by high-energy particles, such as those emitted by the sun.

Physics - Materials Science - 25.11.2020
Phytoplankton disturbed by nanoparticles
Phytoplankton disturbed by nanoparticles
Due to its antibacterial properties, nanosilver is used in a wide range of products from textiles to cosmetics. But nanosilver if present at high concentrations also disrupts the metabolism of algae that are essential for the aquatic food web dynamics and the production of terrestrial oxygen. Products derived from nanotechnology are efficient and highly sought-after, yet their effects on the environment are still poorly understood.

Environment - Materials Science - 25.11.2020
Scientists invent ultrafast way to make solar modules greener
Scientists invent ultrafast way to make solar modules greener
High-speed manufacturing could advance the commercialization of perovskite modules, a green alternative to conventional solar panels made of silicon. Most solar cells today are made with refined silicon that turns sunlight into clean electricity. Unfortunately, the process of refining silicon is far from clean, requiring vast amounts of energy from carbon-emitting power plants.