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Categories: Chemistry: General, Space: Cosmology
Published DNA becomes our 'hands' to construct advanced nanoparticle materials
(via sciencedaily.com) Original source A new paper describes a significant leap forward in assembling polyhedral nanoparticles. The researchers introduce and demonstrate the power of a novel synthetic strategy that expands possibilities in metamaterial design. These are the unusual materials that underpin 'invisibility cloaks' and ultrahigh-speed optical computing systems.
Published Chemical synthesis: New strategy for skeletal editing on pyridines
(via sciencedaily.com) Original source A team has introduced a strategy for converting carbon-nitrogen atom pairs in a frequently used ring-shaped compound into carbon-carbon atom pairs. The method has potential in the quest for active ingredients for new drugs, for example.
Published Lighting the path: Exploring exciton binding energies in organic semiconductors
(via sciencedaily.com) Original source Organic semiconductors are materials that find applications in various electronic devices. Exciton binding energy is an important attribute that influences the behavior of these materials. Now, researchers have employed advanced spectroscopic techniques to accurately determine these energies for various organic semiconductor materials, with a high precision of 0.1 electron volts. Their study reveals unexpected correlations that are poised to shape the future of organic optoelectronics, influence design principles, and find potential applications in bio-related materials.
Published Next-generation batteries could go organic, cobalt-free for long-lasting power
(via sciencedaily.com) Original source In the switch to 'greener' energy sources, the demand for rechargeable lithium-ion batteries is surging. However, their cathodes typically contain cobalt -- a metal whose extraction has high environmental and societal costs. Now, researchers in report evaluating an earth-abundant, carbon-based cathode material that could replace cobalt and other scarce and toxic metals without sacrificing lithium-ion battery performance.
Published Efficiently moving urea out of polluted water is coming to reality
(via sciencedaily.com) Original source Researchers have developed a material to remove urea from water and potentially convert it into hydrogen gas. By building these materials of nickel and cobalt atoms with carefully tailored electronic structures, the group has unlocked the potential to enable these transition metal oxides and hydroxides to selectively oxidize urea in an electrochemical reaction. The team's findings could help use urea in waste streams to efficiently produce hydrogen fuel through the electrolysis process, and could be used to sequester urea from water, maintaining the long-term sustainability of ecological systems, and revolutionizing the water-energy nexus.
Published Cobalt-free batteries could power cars of the future
(via sciencedaily.com) Original source A new battery material could offer a more sustainable way to power electric cars. The lithium-ion battery includes a cathode based on organic materials, instead of cobalt or nickel.
Published Astronomers detect oldest black hole ever observed
(via sciencedaily.com) Original source Researchers have discovered the oldest black hole ever observed, dating from the dawn of the universe, and found that it is 'eating' its host galaxy to death.
Published Chemists create a 2D heavy fermion
(via sciencedaily.com) Original source Researchers have synthesized the first 2D heavy fermion. The material, a layered intermetallic crystal composed of cerium, silicon, and iodine (CeSiI), has electrons that are 1000x heavier and is a new platform to explore quantum phenomena.
Published Let it glow: Scientists develop new approach to detect 'forever chemicals' in water
(via sciencedaily.com) Original source Researchers have created a new way to detect 'forever chemical' pollution in water, via a luminescent sensor.
Published Study delivers detailed photos of galaxies' inner structures
(via sciencedaily.com) Original source High-resolution images captured by the James Webb Space Telescope are offering powerful insights into the complex dust patterns of nearby star-forming galaxies.
Published Artificial 'power plants' harness energy from wind and rain
(via sciencedaily.com) Original source Fake plants are moving into the 21st century! Researchers developed literal 'power plants' -- tiny, leaf-shaped generators that create electricity from a blowing breeze or falling raindrops. The team tested the energy harvesters by incorporating them into artificial plants.
Published Study reveals a reaction at the heart of many renewable energy technologies
(via sciencedaily.com) Original source Chemists have mapped how proton-coupled electron transfers happen at the surface of an electrode. Their results could help researchers design more efficient fuel cells, batteries, or other energy technologies.
Published Astronomers produce most sensitive radio image ever of ancient star cluster
(via sciencedaily.com) Original source Astronomers have created the most sensitive radio image ever of a globular cluster, an ancient ball of tightly-packed stars.
Published Squishy, metal-free magnets to power robots and guide medical implants
(via sciencedaily.com) Original source 'Soft robots,' medical devices and implants, and next-generation drug delivery methods could soon be guided with magnetism -- thanks to a metal-free magnetic gel developed by researchers. Carbon-based, magnetic molecules are chemically bonded to the molecular network of a gel, creating a flexible, long-lived magnet for soft robotics.
Published Cheap substitute for expensive metal in an industrially common chemical reaction
(via sciencedaily.com) Original source Researchers have helped minimize the cost of an important class of chemical transformations: converting nitriles into primary amines. Their experimental protocol uses a cheap nickel catalyst instead of an expensive noble metal, is convenient to conduct, and works for a broad range of starting materials. This work is an important advance in sustainable chemistry that might help lower the cost of producing nylon and many other everyday products.
Published Water molecule discovery contradicts textbook models
(via sciencedaily.com) Original source Textbook models will need to be re-drawn after a team of researchers found that water molecules at the surface of salt water are organised differently than previously thought.
Published The power of pause: Controlled deposition for effective and long-lasting organic devices
(via sciencedaily.com) Original source In organic optoelectronic devices, the control of molecular deposition on thin films is important for optimal surface arrangement and device performance. In a recent study, researchers developed a new method for achieving stable deposition on thin films effectively. They also developed a tool to track real-time potential changes on the surface. These findings are expected to aid the improvement of organic devices, such as organic light-emitting diodes, in terms of efficacy and durability.
Published Core-shell 'chemical looping' boosts efficiency of greener approach to ethylene production
(via sciencedaily.com) Original source Oxidative coupling of methane (OCM) is now one step closer to leaving the lab and entering the real world. Researchers have developed an OCM catalyst that exceeds 30 percent when it comes to the production of ethylene.
Published New catalytic technique creates key component of incontinence drug in less time
(via sciencedaily.com) Original source Researchers have developed a unique catalyst that promises to revolutionize drug synthesis. It overcomes a common problem associated with the production of drugs from ketones. Using their catalyst, the researchers synthesized a key component of the commonly used incontinence drug oxybutynin. Their results underscore the potential of the catalyst to improve drug discovery and development.
Published Capturing greenhouse gases with the help of light
(via sciencedaily.com) Original source Researchers use light-reactive molecules to influence the acidity of a liquid and thereby capture of carbon dioxide. They have developed a special mixture of different solvents to ensure that the light-reactive molecules remain stable over a long period of time. Conventional carbon capture technologies are driven by temperature or pressure differences and require a lot of energy. This is no longer necessary with the new light-based process.