EPFL and University of Manchester researchers unlock secrets of nanofluidics using a 2D material and light. A discovery in the field of nanofluidics could shake up our understanding of molecular behavior on the tiniest scales. Research teams at EPFL and the University of Manchester have revealed a previously hidden world by using the newly found fluorescent properties of a graphene-like 2D material, boron nitride. This innovative approach enables scientists to track individual molecules within nanofluidic structures, illuminating their behavior in…
Sandia researchers develop molecule that reduces wear and tear. A team at Sandia National Laboratories developed a molecule that helps change the way some materials react to temperature fluctuations, which makes them more durable. It’s an application that could be used in everything from plastic phone cases to missiles. Polymers, which include various forms of plastics, are made up of many smaller molecules, bonded together. This bond makes them especially strong and an ideal product to be used to protect…
Produced with techniques borrowed from Japanese paper-cutting, the strong metal lattices are lighter than cork and have customizable mechanical properties. Cellular solids are materials composed of many cells that have been packed together, such as a honeycomb. The shape of those cells largely determines the material’s mechanical properties, including its stiffness or strength. Bones, for instance, are filled with a natural material that enables them to be lightweight, but stiff and strong. Inspired by bones and other cellular solids found in nature, humans have used the same…
Soft materials are ubiquitous in our daily lives, from the food we eat to the products we use to the materials that make up our bodies. Some examples of soft materials include cream, toothpaste, and blood. Most soft materials are complex fluids, which means that they contain a macroscopically uniform mixture of two or more phases. The dynamic competition between the structures of phases in a soft material can have a significant impact on not only its properties, but also…
If coal and natural gas power generation were 2% more efficient, then, every year, there could be 460 million fewer tons of carbon dioxide released and 2 trillion fewer gallons of water used. A recent innovation to the steam cycle used in fossil fuel power generation could achieve this. Researchers at the University of Illinois Urbana-Champaign have developed a coating for steam condensers used in fossil fuel steam-cycle generation that is made with fluorinated diamond-like carbon, or F-DLC. The researchers…
Crackling noise of atoms shifting at nanoscale key to understanding novel materials for future electronics. A recent UNSW-led paper published in Nature Communications presents an exciting new way to listen to avalanches of atoms in crystals. The nanoscale movement of atoms when materials deform leads to sound emission. This so-called crackling noise is a scale-invariant phenomenon found in various material systems as a response to external stimuli such as force or external fields. Jerky material movements in the form of avalanches can…
Materials are often considered to be one phase, but many engineering materials contain two or more phases, improving their properties and performance. These two-phase materials have inclusions, called precipitates, embedded in the microstructure. Alloys, a combination of two or more types of metals, are used in many applications, like turbines for jet engines and light-weight alloys for automotive applications, because they have very good mechanical properties due to those embedded precipitates. The average precipitate size, however, tends to increase over…
The process could usher in an era of shot-free vaccines, researchers say. Rutgers scientists have devised a highly accurate method for creating coatings of biologically active materials for a variety of medical products. Such a technique could pave the way for a new era of transdermal medication, including shot-free vaccinations, the researchers said. Writing in Nature Communications, researchers described a new approach to electrospray deposition, an industrial spray-coating process. Essentially, Rutgers scientists developed a way to better control the target…
A new study led by the Flatiron Institute’s Aavishkar Patel has identified a mechanism that explains the unusual behavior of strange metals, considered one of the greatest open challenges in condensed matter physics. For nearly 40 years, materials called ‘strange metals’ have flummoxed quantum physicists, defying explanation by operating outside the normal rules of electricity. Now research led by Aavishkar Patel of the Flatiron Institute’s Center for Computational Quantum Physics (CCQ) in New York City has identified, at long last,…
Rice lab discovers commonly used nanoparticles are cousins of original buckyballs. Rice University chemists have discovered that tiny gold “seed” particles, a key ingredient in one of the most common nanoparticle recipes, are one and the same as gold buckyballs, 32-atom spherical molecules that are cousins of the carbon buckyballs discovered at Rice in 1985. Carbon buckyballs are hollow 60-atom molecules that were co-discovered and named by the late Rice chemist Richard Smalley. He dubbed them “buckminsterfullerenes” because their atomic…
Researchers at the University of Bayreuth, together with partners in China and the USA, have produced an oxide glass with unprecedented toughness. Under high pressures and temperatures, they succeeded in paracrystallizing an aluminosilicate glass: The resulting crystal-like structures cause the glass to withstand very high stresses and are retained under ambient conditions. Paracrystallization thus proves to be a promising process for producing extremely break-resistant glasses. In “Nature Materials”, the researchers present their findings, in which the German Electron Synchrotron (DESY)…
A new technique developed at Columbia offers a systematic evaluation of twist angle and strain in layered 2D materials. Think you know everything about a material? Try giving it a twist—literally. That’s the main idea of an emerging field in condensed matter physics called “twistronics,” which has researchers drastically changing the properties of 2D materials, like graphene, with subtle changes—as small as going from a 1.1° to 1.2°—in the angle between stacked layers. Twisted layers of graphene, for example, have…
Systems in the Universe trend toward disorder, with only applied energy keeping the chaos at bay. The concept is called entropy, and examples can be found everywhere: ice melting, campfire burning, water boiling. Zentropy theory, however, adds another level to the mix. A team led by Zi-Kui Liu, the Dorothy Pate Enright Professor of Materials Science and Engineering at Penn State, developed the theory. The “Z” in zentropy stands for the German word Zustandssumm, meaning ‘‘sum over states” of entropy….
Macquarie University engineers have developed a new technique to make the manufacture of nanosensors far less carbon-intensive, much cheaper, more efficient, and more versatile, substantially improving a key process in this trillion-dollar global industry. The team has found a way to treat each sensor using a single drop of ethanol instead of the conventional process that involves heating materials to high temperatures. Their research, published yesterday in the Journal of Advanced Functional Materials, is titled, ‘Capillary-driven self-assembled microclusters for highly performing…
Researchers at Tohoku University and Massachusetts Institute of Technology (MIT) have unveiled new information about the anomalous dynamics at play when an electric current is applied to a new class of magnetic materials called non-collinear antiferromagnets. Researchers at Tohoku University and Massachusetts Institute of Technology (MIT) have unveiled a representative effect of the anomalous dynamics at play when an electric current is applied to a new class of magnetic materials called non-collinear antiferromagnets. Their findings were published in the journal Nature…
Fundamental discovery and new technique could lead to better, safer rechargeable batteries. Rechargeable lithium-ion batteries power smartphones, electric vehicles and storage for solar and wind energy, among other technologies. They descend from another technology, the lithium-metal battery, that hasn’t been developed or adopted as broadly. There’s a reason for that: While lithium-metal batteries have the potential to hold about double the energy that lithium-ion batteries can, they also present a far greater risk of catching fire or even exploding. Now,…
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