Aryl radical formation by aryl halide bond cleavage by a N-heterocyclic carbene catalyst
Aryl halides with a benzene ring directly bonded to a halogen atom are readily available and chemically stable, so they are used as a source of benzene rings in organic synthesis. For example, a chemical reaction that generates a highly reactive aryl.....»»
Molecular simulation AI tool reveals unresolved structure of transporter protein
In a groundbreaking study, researchers have unveiled a previously unknown conformational state of a crucial transporter protein, OxlT, which plays a vital role in preventing kidney stone formation. This discovery, achieved through advanced computatio.....»»
Astronomers analyze masses, orbital properties and atmospheric features of six exoplanets
A recently discovered solar system with six confirmed exoplanets and a possible seventh is boosting astronomers' knowledge of planet formation and evolution. Relying on a globe-spanning arsenal of observatories and instruments, a team led by research.....»»
Hubble views NGC 3384, a galaxy settling into old age
NGC 3384, visible in this image, has many of the characteristic features of so-called elliptical galaxies. Such galaxies glow diffusely, are rounded in shape, display few visible features, and rarely show signs of recent star formation. Instead, they.....»»
Webb sees dozens of young quasars in the first billion years of the universe
Within almost every galaxy is a supermassive black hole. Millions, sometimes billions of solar masses are locked within an event horizon of space and time. They can power luminous quasars, drive star formation, and change the evolution of a galaxy. B.....»»
Water self-purification achieved via electron donation: Novel catalyst enables sustainable wastewater treatment
Emerging contaminants (ECs) in natural water bodies, including endocrine disruptors, pharmaceuticals, and synthetic dyes, pose a grave threat to public water safety. Current wastewater treatment technologies, while somewhat effective, fall short of e.....»»
Team expands research of water droplet interfaces that offer the secret ingredient for building life
R. Graham Cooks, the Henry B. Hass Distinguished Professor of Chemistry, and his postdoctoral researcher Lingqi Qiu have experimental evidence that the key step in protein formation can occur in droplets of pure water, and have recently published the.....»»
LipidOz: New software enables identification of lipid double bond locations
Lipids are a class of biomolecules that play an important role in many cellular processes. Analyses that seek to characterize all lipids in a sample—called lipidomics—are crucial to studying complex biological systems......»»
Hubble observes an askew galaxy coaxing star formation from its partner
Arp 300 consists of two interacting galaxies, UGC 05028 (the smaller face-on spiral galaxy) and UGC 05029 (the larger face-on spiral). Likely due to its gravitational dance with its larger partner, UGC 05028 has an asymmetric, irregular structure, wh.....»»
HP CEO evokes James Bond-style hack via ink cartridges
"Our long-term objective is to make printing a subscription." Enlarge (credit: Getty) Last Thursday, HP CEO Enrique Lores addressed the company's controversial practice of bricking printers when users load them with thi.....»»
Mars Express finds evidence of large water deposit at the Medusae Fossae Formation
Windswept piles of dust, or layers of ice? ESA's Mars Express has revisited one of Mars's most mysterious features to clarify its composition. Its findings suggest layers of water ice stretching several kilometers below ground—the most water ever f.....»»
Research reveals gas-phase migration route for formation of strong metal-support interaction state
Strong metal-support interaction (SMSI) is one of the most important concepts in heterogeneous catalysis. Triggered by pretreatment or reaction processes, the supported metal nanoparticles may be partially or completely encapsulated by support-derive.....»»
Researchers develop a low-cost catalyst for green hydrogen production
Electrolysis is a process that uses electricity to create hydrogen and oxygen molecules from water. The use of proton exchange membrane (PEM) and renewable energy for water electrolysis is widely regarded as a sustainable method for hydrogen producti.....»»
Hot springs were a catalyst for origins of life on Earth, study claims
Hot springs may have served as a catalyst for the origins of life on Earth billions of years ago, a new study has suggested. The … The post Hot springs were a catalyst for origins of life on Earth, study claims appeared first on BGR......»»
Researchers realize ethylene methoxycarbonylation reaction over single-atom catalyst
Ethylene methoxycarbonylation reaction is the key process in the alpha-route to produce methyl methacrylate industrially. This approach has the advantages of using widely available raw materials, having high atomic efficiency as well as high selectiv.....»»
Cosmic dawn observational progress with NenuFAR
The NenuFAR Cosmic Dawn project has taken an important step in the exploration of the Cosmic Dawn, this key period in our universe marked by the formation of the first stars. An upper limit on the amplitude of the neutral hydrogen fluctuations at 21.....»»
Water may have flowed intermittently in Martian valleys for hundreds of millions of years
Using impact craters as a dating tool, Planetary Science Institute Research Scientist Alexander Morgan has determined maximum timescales for the formation of Martian valley networks shaped by running water......»»
This Doctor Helped Spare Women from Radical Mastectomy
Canadian radiation oncologist Vera Peters pioneered the use of lumpectomies and postoperative radiation to treat breast cancer patients......»»
New research deciphers biomineralization mechanism
Many organisms can produce minerals or mineralized tissue. A well-known example is nacre, which is used in jewelry because of its iridescent colors. Chemically speaking, its formation begins with a mollusk extracting calcium and carbonate ions from w.....»»
More aerosol particles than thought are forming over Siberia, finds study
Aerosol particles play a key role in cooling the planet. They can either directly affect how much sunlight ends up on the surface of the Earth or indirectly through cloud formation, to which they contribute. New particles form from a variety of gas m.....»»
Astronomers find direct link that supernovae give rise to black holes or neutron stars
Astronomers have found a direct link between the explosive deaths of massive stars and the formation of the most compact and enigmatic objects in the universe—black holes and neutron stars. With the help of the European Southern Observatory's Very.....»»