Phosphorus equivalent of graphene makes reconfigurable transistors
May be useful for security, as it’s hard to tell how the circuitry might execute. Enlarge / One gate, two behaviors. (credit: Peng Wu et al.) At the moment, our processors are built on silicon. But fundamental limits on what can be done with.....»»
Graphene spike mat uses ordinary fridge magnet tech to fight antibiotic resistance
With strong bactericidal properties, graphene has the potential to become a game changer in the fight against antibiotic-resistant bacteria. So far there have been no efficient ways to control these properties—and thus no way to make use of graphen.....»»
Graphene at 20: Still no sign of the promised space elevator, but the material is quietly changing the world
Twenty years ago this October, two physicists at the University of Manchester, Andre Geim and Konstantin Novoselov, published a groundbreaking paper on the "electric field effect in atomically thin carbon films." Their work described the extraordinar.....»»
Moderate levels of exotic species invasions may help maintain biodiversity, study suggests
Globally, more than 13,000 plant species, equivalent to the entire native flora of Europe, have been naturalized outside their native ranges. A study, jointly conducted by scientists from China and the U.S., provides new insights about biodiversity,.....»»
Biogeochemistry scientists from around the world publish position paper on tackling "hidden" phosphorus
As the world tries to mitigate agriculture's effect on the environment, much of the story can be found in soil, which stores and cycles nutrient elements of carbon, nitrogen, and phosphorus......»»
NASA will proceed with final preps to launch Europa Clipper next month
After a four-month review, NASA says suspect transistors on Europa Clipper are good to go. Enlarge / The main body of NASA's Europa Clipper spacecraft is reflected in one of the mission's deployable solar array wings during testi.....»»
Theoretical model for multisite alloy catalyst design quantifies active site contributions
Two research teams have developed a novel theoretical model to describe the overall activity of multisite alloy catalysts. In their study published in Journal of the American Chemical Society, they propose a concept of equivalent site ratio and succe.....»»
Research team achieves high-resolution 2D imaging for graphene devices under high pressure
A research team led by Prof Zhang Zengming from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has combined nitrogen-vacancy (NV) centers in diamond with a diamond anvil cell (DAC) to achieve non-inv.....»»
Plant scientists link phospholipid sensing with control of gene expression
Plant scientists have long known that phosphorus is a crucial component in plant growth. A major discovery by a Kansas State University (K-State) biologist and her lab is leading to a better understanding of how plants detect and use that resource—.....»»
Adding an alternating magnetic field to layers of twisted graphene creates even more exotic properties
Magnetic fields can engineer flat bands in twisted graphene layers to create a new playground for exotic physics, RIKEN physicists have shown......»»
Low-energy ion implantation enables 2D lateral p-n junction construction
The feature size of silicon-based transistors is approaching the theoretical limit, which puts forward higher requirements for the atomic level manufacturing of semiconductors. The basic idea of atomic level manufacturing is to process and manipulate.....»»
Reconfigurable sensor can detect particles 0.001 times the wavelength of light
In recent years, advances in photonics and materials science have led to remarkable developments in sensor technology, pushing the boundaries of what can be detected and measured. Among these innovations, non-Hermitian physics has emerged as a crucia.....»»
World"s first micromachine twists 2D materials at will
Just a few years ago, researchers discovered that changing the angle between two layers of graphene, an atom-thick sheet of carbon, also changed the material's electronic and optical properties. They then learned that a "twist" of 1.1 degrees—dubbe.....»»
Study finds protein reduces toxicity of graphene oxide for drug delivery
A new study has discovered ways to reduce the toxicity of graphene oxide (GO), an ultra-thin sheet of nanomaterial derived from graphite, laying the groundwork to use it as a drug delivery system......»»
How feeding birds may be polluting local environments
New research led by an NAU alumnus shows that backyard bird feeders, although put out with the best of intentions, is changing the chemistry of local ecosystems, including introducing a potentially harmful amount of phosphorus into the environment......»»
Ultrafast electron microscopy technique advances understanding of processes applicable to brain-like computing
Today's supercomputers consume vast amounts of energy, equivalent to the power usage of thousands of homes. In response, researchers are developing a more energy-efficient form of next-generation supercomputing that leverages artificial neural networ.....»»
Wheat waste: A phosphorus crisis?
Experiments published in Food and Energy Security by scientists at Queen Mary University of London and Royal Botanic Gardens suggest that we are globally wasting huge amounts of phosphorus......»»
Researchers discover graphene flakes in lunar soil sample
A study, published in National Science Review, reveals the existence of naturally formed few-layer graphene, a substance consisting of carbon atoms in a special, thin-layered structure......»»
Loss of popular 2FA tool puts security-minded GrapheneOS in a paradox
Losing access to Authy leads to another reckoning with Google's security model. Enlarge / Graphene is a remarkable allotrope, deserving of further study. GrapheneOS is a remarkable ROM, one that Google does not quite know how to.....»»
New, more sustainable method for manufacturing microchips and other nanoscale devices
Putting 50 billion transistors into a microchip the size of a fingernail is a feat that requires manufacturing methods of nanometer level precision—layering of thin films, then etching, depositing, or using photolithography to create the patterns o.....»»
Researchers trap atoms, force them to serve as photonic transistors
Researchers at Purdue University have trapped alkali atoms (cesium) on an integrated photonic circuit, which behaves like a transistor for photons (the smallest energy unit of light) similar to electronic transistors. These trapped atoms demonstrate.....»»