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UrduIn its most precious variants, corundum forms rubies and sapphires because of traces of chromium, iron, or titanium. However, material scientists are not that interested in it as a gemstone. Because it can almost compete with diamond in terms of…
Tag: CHEMISTRY/PHYSICS/MATERIALS SCIENCES
Post-lithium technology
High-energy-density polymeric cathode for fast-charge sodium- and multivalent-ion batteries
SRNL radiation detection systems operating at ports of Tacoma and NY/NJ
AIKEN, S.C. (Nov. 1, 2019) – After years of development and testing, a radiation detection system developed by the Department of Energy ‘s Savannah River National Laboratory is now in full-scale operation at major United States shipping ports. In 2018,…
Suspended layers make a special superconductor
In superconducting materials, an electric current will flow without any resistance. There are quite a few practical applications of this phenomenon; however, many fundamental questions remain as yet unanswered. Associate Professor Justin Ye, head of the Device Physics of Complex…
Elusive cancer-related protein captured in flight
Scientists have for the first time seen how the MYC protein, which plays a central role in cancer, binds to a key protein and controls important functions in the cell. The study, published in Nature Structural and Molecular Biology ,…
Commemorating 30 years of optical vortices: A comprehensive review
Vortices are common phenomena that widely exist in nature, from quantum vortices in liquid nitrogen to ocean circulation and typhoon vortices and even to spiral galaxies in the Milky Way. Vortices also exist in optics, the concept of which was…
Elusive cancer-related protein captured in flight
Scientists have for the first time seen how the MYC protein, which plays a central role in cancer, binds to a key protein and controls important functions in the cell. The study, published in Nature Structural and Molecular Biology ,…
New technology poised to lower cost and expand applications for transparent LED screens
For the first time, transparent conductive circuits made of silver nanowires used to make rigid and flexible transparent displays
Chemists observe ‘spooky’ quantum tunneling
Extremely large electric fields can prevent umbrella-shaped ammonia molecules from inverting.
‘Hot’ electrons in metallic nanostructures — non-thermal carriers or heating?
What happens to a piece of metal when you shine light on it? This question, which has been one of the driving forces of modern physics, gained renewed interest in recent years, with the advances in fabrication of small metallic…
Science: Sensing magnetism in atomic resolution with just a scanning tunneling microscope
Researchers use single molecule on microscope tip as a sensor to detect magnetic moments with unprecedented spatial resolution
Scientists develop strategy to stabilize single atoms with ionic liquid as electronic stabilizer
Supported single-atom catalysts (SACs) have emerged as a new frontier in heterogeneous catalysis and have attracted broad interest for their demonstrated good catalytic performance due to high atomic efficiency and relatively homogeneous active sites. Strategies have been developed to fabricate…
Nanoparticle drug delivery provides pain relief and more effective opioid alternative in animal study
Research uses nanoparticles to infuse a non-opioid drug into nerves to provide enhanced pain relief
Scientists spy unstable semiconductors
New observations using state-of-the-art techniques could help to build better electronics in smartphones, GPS and satellites
Chemists observe ‘spooky’ quantum tunneling
Extremely large electric fields can prevent umbrella-shaped ammonia molecules from inverting.
2D antimony holds promise for post-silicon electronics
Engineers at The University of Texas at Austin find new material for manufacturing even smaller computer chips to replace silicon.
Neuroinflammation and Alzheimer’s disease
Researchers report that the small molecule DAPPD, which promotes phagocytosis of microglia cells in the brain, diminished amyloid deposition and improved cognitive function in transgenic mouse models of Alzheimer’s disease; the results suggest that compounds countering neuroinflammation might represent a…
Easy access to corundum (α-Al2O3) in nanoparticulate form
In its most precious variants, corundum forms rubies and sapphires because of traces of chromium, iron, or titanium. However, material scientists are not that interested in it as a gemstone. Because it can almost compete with diamond in terms of…
Dynamics of silk proteins are key to outstanding stability of spider silk as biomaterial
Interdisciplinary study clarifies role of protein dynamics mediated by the amino acid methionine
Scientists probe the limits of ice
Coexistence of ice and liquid water breaks down at the nanoscale
New technology poised to lower cost and expand applications for transparent LED screens
For the first time, transparent conductive circuits made of silver nanowires used to make rigid and flexible transparent displays
Commemorating 30 years of optical vortices: A comprehensive review
Vortices are common phenomena that widely exist in nature, from quantum vortices in liquid nitrogen to ocean circulation and typhoon vortices and even to spiral galaxies in the Milky Way. Vortices also exist in optics, the concept of which was…
Elusive cancer-related protein captured in flight
Scientists have for the first time seen how the MYC protein, which plays a central role in cancer, binds to a key protein and controls important functions in the cell. The study, published in Nature Structural and Molecular Biology ,…
Suspended layers make a special superconductor
In superconducting materials, an electric current will flow without any resistance. There are quite a few practical applications of this phenomenon; however, many fundamental questions remain as yet unanswered. Associate Professor Justin Ye, head of the Device Physics of Complex…
Suspended layers make a special superconductor
In superconducting materials, an electric current will flow without any resistance. There are quite a few practical applications of this phenomenon; however, many fundamental questions remain as yet unanswered. Associate Professor Justin Ye, head of the Device Physics of Complex…
‘Hot’ electrons in metallic nanostructures — non-thermal carriers or heating?
What happens to a piece of metal when you shine light on it? This question, which has been one of the driving forces of modern physics, gained renewed interest in recent years, with the advances in fabrication of small metallic…
Nanoparticle drug delivery provides pain relief and more effective opioid alternative in animal study
Research uses nanoparticles to infuse a non-opioid drug into nerves to provide enhanced pain relief
Light-based ‘tractor beam’ assembles materials at the nanoscale
Modern construction is a precision endeavor. Builders must use components manufactured to meet specific standards — such as beams of a desired composition or rivets of a specific size. The building industry relies on manufacturers to create these components reliably…
2D antimony holds promise for post-silicon electronics
Engineers at The University of Texas at Austin find new material for manufacturing even smaller computer chips to replace silicon.
Scientists spy unstable semiconductors
New observations using state-of-the-art techniques could help to build better electronics in smartphones, GPS and satellites
Chemists observe ‘spooky’ quantum tunneling
Extremely large electric fields can prevent umbrella-shaped ammonia molecules from inverting.
Tethered chem combos could revolutionize artificial photosynthesis
New approach improves efficiency of converting sunlight to hydrogen fuel; provides platform for testing different combos of light-absorbers and catalysts
Scientists develop strategy to stabilize single atoms with ionic liquid as electronic stabilizer
Supported single-atom catalysts (SACs) have emerged as a new frontier in heterogeneous catalysis and have attracted broad interest for their demonstrated good catalytic performance due to high atomic efficiency and relatively homogeneous active sites. Strategies have been developed to fabricate…
Neuroinflammation and Alzheimer’s disease
Researchers report that the small molecule DAPPD, which promotes phagocytosis of microglia cells in the brain, diminished amyloid deposition and improved cognitive function in transgenic mouse models of Alzheimer’s disease; the results suggest that compounds countering neuroinflammation might represent a…
SRNL radiation detection systems operating at ports of Tacoma and NY/NJ
AIKEN, S.C. (Nov. 1, 2019) – After years of development and testing, a radiation detection system developed by the Department of Energy ‘s Savannah River National Laboratory is now in full-scale operation at major United States shipping ports. In 2018,…
Scientists probe the limits of ice
Coexistence of ice and liquid water breaks down at the nanoscale
Easy access to corundum (α-Al2O3) in nanoparticulate form
In its most precious variants, corundum forms rubies and sapphires because of traces of chromium, iron, or titanium. However, material scientists are not that interested in it as a gemstone. Because it can almost compete with diamond in terms of…
Commemorating 30 years of optical vortices: A comprehensive review
Vortices are common phenomena that widely exist in nature, from quantum vortices in liquid nitrogen to ocean circulation and typhoon vortices and even to spiral galaxies in the Milky Way. Vortices also exist in optics, the concept of which was…
Post-lithium technology
High-energy-density polymeric cathode for fast-charge sodium- and multivalent-ion batteries
Light-based ‘tractor beam’ assembles materials at the nanoscale
Modern construction is a precision endeavor. Builders must use components manufactured to meet specific standards — such as beams of a desired composition or rivets of a specific size. The building industry relies on manufacturers to create these components reliably…
Personalized and powerful: UK to lead next-generation radiotherapy research
The UK will be transformed into a global hub for radiotherapy research, pioneering the use of the latest techniques such as FLASH radiotherapy and artificial intelligence, with a new £56 million* research network announced by Cancer Research UK today (Monday).…
New way to date rocks
A new way to date a common mineral could help pinpoint ore deposits and improve mineral exploration globally, according to University of Queensland scientists. The researchers have identified a new reference material and used a state-of-the-art instrument to better date…
Vampire folklore has more chemistry than you’d think (video)
WASHINGTON, Oct. 31, 2019 — Halloween season wouldn’t be the same without the undead. This week on Reactions, we unpack the chemistry that might have inspired one of our favorites: the vampire: https:/ / youtu. be/ hTtitLeGvV0 . Reactions is…
Slow-wave sleep critical to brain’s automatic ‘self-rinse’ cycle
Slow oscillating neural activity during non-REM sleep triggers waves of cerebrospinal fluid that flow in and out of the sleeping brain, washing it of harmful metabolic waste products, researchers find. Their new study reveals a key component in the neurophysiology…
The secrets behind a creepy photographic technique
In the 1960s, a French artist named Jean-Pierre Sudre began experimenting with an obscure 19th-century photographic process, creating dramatic black-and-white photographs with ethereal veiling effects. Sudre christened the process “mordanҫage,” the French word for “etching.” Since then, other photographers have…
Will lithium-air batteries ever take flight?
Amid growing climate concerns, many governments and scientists worldwide are trying to reduce air travel’s environmental impact. Electric planes are a possible solution, but better batteries are needed to power large aircraft for long distances. Lithium-air batteries, one of the…
Vera Serganova and Valery Fokin became Laureates of 2019 George Gamow Award
Mathematician Vera Serganova and chemist Valery Fokin became Laureates of 2019 George Gamow Award
A stretchable stopwatch lights up human skin
Imagine a runner who doesn’t need to carry a stopwatch or cell phone to check her time: She could just gaze at the glowing stopwatch display on the back of her hand. Such human-machine interfaces are no longer science fiction,…
Microrobots clean up radioactive waste (video)
According to some experts, nuclear power holds great promise for meeting the world’s growing energy demands without generating greenhouse gases. But scientists need to find a way to remove radioactive isotopes, both from wastewater generated by nuclear power plants and…
Finally, the answer to a ‘burning’ 40-year-old question
Cutting-edge instrumentation reveals mechanism behind catalysis that neutralizes air-polluting NOx from power plant emissions