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Materials Science - Health - 29.10.2020
Study measures effectiveness of different face mask materials when coughing
A team of researchers have tested everything from t-shirts and socks to jeans and vacuum bags to determine what type of mask material is most effective at trapping the ultrafine particles which may contain viruses such as SARS-CoV-2, the virus which causes COVID-19.

Materials Science - 23.10.2020
High-temperature, low carbon processes: the challenge for the new Canopée laboratory
High-temperature, low carbon processes: the challenge for the new Canopée laboratory
The CNRS, l'Université de Lorraine and Saint-Gobain Group signed, this Friday, October 23, 2020, the creation of the Canopée laboratory, dedicated to the study of materials and "systems" under extreme temperature conditions. The objective is to reduce the carbon footprint of high-temperature manufacturing processes.

Physics - Materials Science - 22.10.2020
Do the twist: Making two-dimensional quantum materials using curved surfaces
Scientists at the University of Wisconsin-Madison have discovered a way to control the growth of twisting, microscopic spirals of materials just one atom thick. The continuously twisting stacks of two-dimensional materials built by a team led by UW-Madison chemistry Professor Song Jin create new properties that scientists can exploit to study quantum physics on the nanoscale.

Innovation - Materials Science - 22.10.2020
Future VR could employ new ultrahigh-res display
Future VR could employ new ultrahigh-res display
Repurposed solar panel research could be the foundation for a new ultrahigh-resolution microdisplay. The OLED display would feature brighter images with purer colors and more than 10,000 pixels per inch. By expanding on existing designs for electrodes of ultra-thin solar panels, Stanford researchers and collaborators in Korea have developed a new architecture for OLED - organic light-emitting diode - displays that could enable televisions, smartphones and virtual or augmented reality devices with resolutions of up to 10,000 pixels per inch (PPI).

Transport - Materials Science - 15.10.2020
Volatile for heavy trucks
Volatile for heavy trucks
In future, commercial vehicles will not only have to emit less CO2 but also meet stricter exhaust emission limits. Many experts expect that this could herald the end for fossil diesel. One possible alternative is dimethyl ether: The highly volatile substance burns very cleanly and can be produced from renewable energy.

Materials Science - Physics - 15.10.2020
Hanging by a colored thread
Hanging by a colored thread
High-performance fibres that have been exposed to high temperatures usually lose their mechanical properties undetected and, in the worst case, can tear precisely when lives depend on them. For example, safety ropes used by fire brigades or suspension ropes for heavy loads on construction sites. Empa researchers have now developed a coating that changes color when exposed to high temperatures through friction or fire.

Materials Science - Chemistry - 15.10.2020
A new approach boosts lithium-ion battery efficiency and puts out fires, too
Menlo Park, Calif . In an entirely new approach to making lithium-ion batteries lighter, safer and more efficient, scientists at Stanford University and the Department of Energy's SLAC National Accelerator Laboratory have reengineered one of the heaviest battery components - sheets of copper or aluminum foil known as current collectors - so they weigh 80% less and immediately quench any fires that flare up.

Physics - Materials Science - 12.10.2020
Well-formed disorder for versatile light technologies
Well-formed disorder for versatile light technologies
Researchers at ETH have managed to make an efficient material for broadband frequency doubling of light using microspheres made of disordered nanocrystals. The crucial idea for the method arose during a coffee break. In the future, the new approach could be used in lasers and other light technologies.

Physics - Materials Science - 12.10.2020
Upper limit for the speed of sound
A research collaboration between the University of Cambridge, Queen Mary University of London and the Institute for High Pressure Physics in Troitsk has discovered the fastest possible speed of sound. The result - about 36 km per second - is around twice as fast as the speed of sound in diamond, the hardest known material in the world.

Materials Science - Physics - 09.10.2020
Modeling eternity in the rock laboratory
Modeling eternity in the rock laboratory
Cement is one of the key materials for the safe storage of radioactive waste. What is needed is an almost infinite durability of the containers. Empa researchers are therefore analyzing material systems that can handle this task. Exploratory tunnel in the Mont Terri international rock laboratory. Since 1996, rock formations that could play a role in the storage of radioactive waste have been investigated here.

Physics - Materials Science - 08.10.2020
An Electrical Trigger Fires Single, Identical Photons
An Electrical Trigger Fires Single, Identical Photons
The precisely controlled photon source, made from an atomically thin semiconducting material, could aid the development of advanced quantum communication Illustration of a gold-covered probe tip injecting electrons into a carefully located imperfection in an atomically thin material. The energy from each electron causes the highly localized emission of a single photon, which may then be guided to a detector.

Materials Science - Environment - 08.10.2020
Airdropping sensors from moths: Researchers use flying insects to drop sensors from air, land them safely on the ground
Airdropping sensors from moths: Researchers use flying insects to drop sensors from air, land them safely on the ground
UW researchers have created a sensor system that can ride on the back of a moth. Shown here is a Manduca sexta moth with the sensor on its back. Mark Stone/University of Washington There are many places in this world that are hard for researchers to study, mainly because it's too dangerous for people to get there.

Materials Science - Chemistry - 08.10.2020
Making disorder for an ideal battery
Making disorder for an ideal battery
Manufacturing safer, more powerful batteries that use geopolitically stable resources requires solid electrolytes and replacing lithium with sodium. A chemical solution is now being offered to battery developers. The lithium batteries that power our electronic devices and electric vehicles have a number of drawbacks.

Materials Science - Physics - 07.10.2020
New findings pave the way to environmentally friendly supercapacitors
New findings pave the way to environmentally friendly supercapacitors
Similar to batteries, supercapacitors are suitable for the repeated storage of electrical energy. TU Graz researchers have presented a particularly safe and sustainable variant of such a supercapacitor. Harald Fitzek, Christian Prehal and Qamar Abbas (from left) at the SAXS facility SAXSpoint 2.0 (Anton Paar GmbH): With their work at Graz University of Technology, the researchers are providing new insights into hybrid supercapacitors.

Physics - Materials Science - 07.10.2020
Intelligent nanomaterials for photonics
Physicists and chemists at the University of Jena engineer optical fibres with 2D materials Light At the latest since the Nobel Prize in Physics was awarded for research on graphene in 2010, 2D materials - nanosheets with atomic thickness - have been a hot topic in science. This significant interest is due to their outstanding properties, which have enormous potential for a wide variety of applications.

Physics - Materials Science - 06.10.2020
All together now: Experiments with twisted 2D materials catch electrons behaving collectively
All together now: Experiments with twisted 2D materials catch electrons behaving collectively
Aerial shot of the University of Washington's Seattle campus. University of Washington Scientists can have ambitious goals: curing disease, exploring distant worlds, clean-energy revolutions. In physics and materials research, some of these ambitious goals are to make ordinary-sounding objects with extraordinary properties: wires that can transport power without any energy loss, or quantum computers that can perform complex calculations that today's computers cannot achieve.

Materials Science - Physics - 05.10.2020
Lego-like assembly of zeolitic membranes improves carbon capture
Lego-like assembly of zeolitic membranes improves carbon capture
EPFL chemical engineers have developed a new way to manufacture zeolitic membranes, state-of-the-art materials used for gas separation in harsh conditions. Zeolites are porous minerals that occur both naturally but also are being synthesized artificially. Because they are stable and durable, zeolites are used for chemical catalysis, purification of gases and liquids, and even in medical applications such as drug delivery and blood-clotting powders, e.g. the QuickClot trauma bandages used in the US military.

Materials Science - Physics - 05.10.2020
Squeezing light inside memory devices could help improve performance
Researchers have developed a method to 'squeeze' visible light in order to see inside tiny memory devices. The technique will allow researchers to probe how these devices break down and how their performance can be improved for a range of applications. The team, led by the University of Cambridge, used the technique to investigate the materials used in random access memories, while in operation.

Materials Science - Environment - 05.10.2020
With multilayered approach, a filter to meet freshwater supply needs
In search of a better way to desalinate water, a Yale-led team of researchers has turned to swimsuit material for inspiration. Reverse osmosis, which uses membranes to remove unwanted salts, has been the gold standard for desalination and wastewater reuse. The challenge that scientists have run into, however, is that the material that best filters out impurities  3/4  polyamide  3/4  is highly susceptible to chlorine.

Chemistry - Materials Science - 01.10.2020
Chemical innovation stabilizes best-performing perovskite formulation
Chemical innovation stabilizes best-performing perovskite formulation
Researchers have successfully overcome a limiting problem with stabilizing the best-performing formulation of metal-halide perovskite films, a key player in a range of applications, including solar cells. Perovskites are a class of materials made up of organic materials bound to a metal. Their fascinating structure and properties have propelled perovskites into the forefront of materials' research, where they are studied for use in a wide range of applications.