Showing 20 articles starting at article 821
< Previous 20 articles Next 20 articles >
Categories: Chemistry: Inorganic Chemistry, Computer Science: Artificial Intelligence (AI)
Published X-rays visualize how one of nature's strongest bonds breaks



The use of short flashes of X-ray light brings scientists one big step closer toward developing better catalysts to transform the greenhouse gas methane into a less harmful chemical. The result reveals for the first time how carbon-hydrogen bonds of alkanes break and how the catalyst works in this reaction.
Published You can make carbon dioxide filters with a 3D printer



Researchers demonstrated that it's possible to make carbon dioxide capture filters using 3D printing.
Published A protein mines, sorts rare earths better than humans, paving way for green tech



Rare earth elements, like neodymium and dysprosium, are a critical component to almost all modern technologies, from smartphones to hard drives, but they are notoriously hard to separate from the Earth's crust and from one another. Scientists have discovered a new mechanism by which bacteria can select between different rare earth elements, using the ability of a bacterial protein to bind to another unit of itself, or 'dimerize,' when it is bound to certain rare earths, but prefer to remain a single unit, or 'monomer,' when bound to others.
Published First X-ray of a single atom



Scientists have taken the world's first X-ray SIGNAL (or SIGNATURE) of just one atom. This groundbreaking achievement could revolutionize the way scientists detect the materials.
Published Under pressure: Foundations of stellar physics and nuclear fusion investigated



Research using the world's most energetic laser has shed light on the properties of highly compressed matter -- essential to understanding the structure of giant planets and stars, and to develop controlled nuclear fusion, a process that could harvest carbon-free energy.
Published Crossing the ring: New method enables C-H activation across saturated carbocycles



Chemists add another powerful tool to their 'molecular editing' toolkit for crafting pharmaceuticals and other valuable compounds.
Published Robot centipedes go for a walk



Researchers show how their multilegged walking robot can be steered by inducing a dynamic instability. By making the couplings between segments more flexible, the robot changes from walking straight to moving in a curved path. This work can lead to more energy-efficient and reliable robotic navigation of terrain.
Published Absolute vs. relative efficiency: How efficient are blue LEDs, actually?



The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study has found that the assumption of always perfect IQE is wrong: the IQE of an LED can be as low as 27.5%.
Published Emergence of solvated dielectrons observed for the first time



Scientists generate low-energy electrons using ultraviolet light.
Published Effective as a collective: Researchers investigate the swarming behavior of microrobots



Miniaturization is progressing rapidly in just any field and the trend towards the creation of ever smaller units is also prevalent in the world of robot technology. In the future, minuscule robots used in medical and pharmaceutical applications might be able to transport medication to targeted sites in the body. Statistical physics can contribute to the foundations for the development of such technologies.
Published 'A blessing in disguise!' Physics turning bad into good



Light is a very delicate and vulnerable property. Light can be absorbed or reflected at the surface of a material depending on the matter's properties or change its form and be converted into thermal energy. Upon reaching a metallic material's surface, light also tends to lose energy to the electrons inside the metal, a broad range of phenomena we call 'optical loss.' Production of ultra-small optical elements that utilize light in various ways is very difficult since the smaller the size of an optical component results in a greater optical loss. However, in recent years, the non-Hermitian theory, which uses optical loss in an entirely different way, has been applied to optics research.
Published Robots and Rights: Confucianism Offers Alternative



As robots assume more roles in the world, a new analysis reviewed research on robot rights, concluding that granting rights to robots is a bad idea. Instead, the article looks to Confucianism to offer an alternative.
Published Making the structure of 'fire ice' with nanoparticles



Cage structures made with nanoparticles could be a route toward making organized nanostructures with mixed materials, and researchers have shown how to achieve this through computer simulations.
Published Twisting under the stroboscope -- Controlling crystal lattices of hybrid solar cell materials with terahertz light



To overcome global energy challenges and fight the looming environmental crisis, researchers around the world investigate new materials for converting sunlight into electricity. Some of the most promising candidates for high-efficiency low-cost solar cell applications are based on lead halide perovskite (LHP) semiconductors. Despite record-breaking solar cell prototypes, the microscopic origin of the surprisingly excellent optoelectronic performance of this material class is still not completely understood. Now, an international team of physicists and chemists has demonstrated laser-driven control of fundamental motions of the LHP atomic lattice.
Published Snapshots of photoinjection



Ultrafast laser physicists from the attoworld team have gained new insights into the dynamics of electrons in solids immediately after photoinjection.
Published Quantum matter breakthrough: Tuning density waves



Scientists have found a new way to create a crystalline structure called a 'density wave' in an atomic gas. The findings can help us better understand the behavior of quantum matter, one of the most complex problems in physics.
Published Researchers build bee robot that can twist



A robotic bee that can fly fully in all directions has been developed. With four wings made out of carbon fiber and mylar as well as four light-weight actuators to control each wing, the Bee++ prototype is the first to fly stably in all directions. That includes the tricky twisting motion known as yaw, with the Bee++ fully achieving the six degrees of free movement that a typical flying insect displays.
Published Fluorine-based new drug synthesis at lightning speed



Researchers synthesize fluorine-based compound via rapid biphasic (gas and liquid) mixing.
Published Physical chemists develop photochromic active colloids shedding light on the development of new smart active materials



In nature, the skin of cephalopods (animals with tentacles attached to the head) exhibits unparalleled camouflage ability. Their skin contains pigment groups that can sense changes in environmental light conditions and adjust their appearance through the action of pigment cells. Although intricate in nature, this colour-changing ability is fundamentally based on a mechanical mechanism in which pigment particles are folded or unfolded under the control of radial muscles. Inspired by this natural process, a research team forms dynamic photochromic nanoclusters by mixing cyan, magenta and yellow microbeads, achieving photochromism on a macro scale.
Published An electric vehicle battery for all seasons



Scientists have developed a fluorine-containing electrolyte for lithium-ion batteries whose charging performance remains high in frigid regions and seasons. They also determined why it is so effective.