Enzymatic synthesis of primary, secondary and tertiary amines containing two stereocenters
In a paper just published in ACS Catalysis, the Biocatalysis research group at the University of Amsterdam's Van 't Hoff Institute for Molecular Synthesis presents a versatile method for the synthesis of primary, secondary, and tertiary amines contai.....»»
A new reaction to enhance aromatic ketone use in chemical synthesis
Aromatic ketones have long been valuable intermediates in chemical synthesis, particularly in cross-coupling reactions where different chemical entities are combined to form new compounds. For instance, a process called deacylative cross-coupling rem.....»»
Mechanistic insights on SSZ-13 zeolite in catalytic dimethyl ether carbonylation
Dimethyl ether (DME) carbonylation to methyl acetate (MA) is one of the crucial steps in an indirect synthesis route of ethanol from syngas. SSZ-13 zeolite, with a typical topology of CHA, characterized by its 8-membered ring (8-MR) channels, has sho.....»»
New twist on synthesis technique promises sustainable manufacturing
James Tour's lab at Rice University has developed a new method known as flash-within-flash Joule heating (FWF) that could transform the synthesis of high-quality solid-state materials, offering a cleaner, faster and more sustainable manufacturing pro.....»»
Plant-microbe interactions underpin contrasting enzymatic responses to wetland drainage
Researchers led by Professor Feng Xiaojuan from the Institute of Botany of the Chinese Academy of Sciences (IBCAS) have analyzed the divergent responses of carbon-degrading enzymes to wetland drainage and found that enzymatic response to long-term dr.....»»
Musk’s new Grok upgrade allows X users to create largely uncensored AI images
With Grok's new AI image generator, X users put Musk's "freedom of speech" to the test. Enlarge / An AI-generated image of Donald Trump and catgirls created with Grok, which uses the Flux image synthesis model. (credit: BEAST / X.....»»
Primary instrument for Roman Space Telescope arrives at NASA Goddard
The primary instrument for NASA's Nancy Grace Roman Space Telescope is a sophisticated camera that will survey the cosmos from the outskirts of our solar system all the way out to the edge of the observable universe. Called the Wide Field Instrument,.....»»
Starvation and adhesion drive formation of keratinocyte patterns in skin, research reveals
Fingerprints are one of the best-recognized examples of pattern formation by epithelial cells. The primary cells in the epithelium are the keratinocytes, and they are known to form patterns at the microscopic and macroscopic levels. While factors aff.....»»
Developing a simple, cost-effective method to identify the targets of a crucial protein-modifying enzyme
Human proteins undergo a variety of chemical modifications following their synthesis. These modifications regulate their structure, function, and stability. Researchers from the Bhogaraju Group at EMBL Grenoble have developed a new method to study a.....»»
Precise stirring conditions key to optimizing nanostructure synthesis
Stirring allows for homogenization and efficient gas exchange—this fact has been known for decades. Controlling the stirring rate during the nanocluster synthesis is pivotal in achieving nanostructures with well-defined sizes, structures, optical p.....»»
Detecting climate change using aerosols
Climate change is one of the most significant environmental challenges of present times, leading to extreme weather events, including droughts, forest fires, and floods. The primary driver of climate change is the release of greenhouse gases into the.....»»
Water delivered to the mantle by aluminum enriched hydrated slabs?
Dense hydrous magnesium silicates (DHMSs) are generally considered as primary water carriers from the shallow lithosphere to the deep mantle transition region (MTR; 410–660 km in depth). Among DHMSs, Superhydrous phase B (hereafter, SuB) holds the.....»»
Domestication causes smaller brain size in dogs than in the wolf: Study challenges notion
A recent study, published in Biology Letters, challenges the long-held notion that domestication is the primary driver of reduced brain size in domesticated animals, specifically dogs......»»
NASA likely to significantly delay the launch of Crew 9 due to Starliner issues
The primary reason for the delay is rather surprising. Enlarge / Boeing's Starliner spacecraft is lifted to be placed atop an Atlas V rocket for its first crewed launch. (credit: United Launch Alliance) NASA is planning.....»»
Rubin Observatory"s 3.5-meter secondary mirror installed
Vera C. Rubin Observatory's 3.5-meter secondary mirror has been installed on the Simonyi Survey Telescope on Cerro Pachón in Chile. The glass mirror—made by Corning Advanced Optics and polished by L3Harris Technologies—is the first permanent com.....»»
Research team achieves faster and more efficient synthesis of high-density RNA microarrays
An international research team led by the University of Vienna has succeeded in developing a new version of RNA building blocks with higher chemical reactivity and photosensitivity. This can significantly reduce the production time of RNA chips used.....»»
Green synthesis of copper oxide nanoparticles from mangifera indica: A solution for agricultural disease management
A research team has successfully synthesized green copper oxide nanoparticles (CuO.NPs) from Mangifera indica (M. indica) leaf extract. The CuO.NPs showed potent activity against gram-positive and negative bacteria, as well as fungicidal effects on p.....»»
Breakthrough in Z-alkene synthesis: Scientists develop efficient and sustainable method
Z-alkenes are organic compounds with a double bond between two carbon atoms and two substituents attached to the carbon atoms on the same side of the double bond. They are ubiquitous structural components of organic compounds in chemistry and biology.....»»
LG Display steps in to iPhone SE 4 OLED supply chain
Apple is tapping LG Display to be a secondary producer of OLED screens for the iPhone SE 4, giving it a backup to the often troubled BOE.iPhone SE 4 could look like the iPhone 14The iPhone SE 4 is rumored to be using an edge-to-edge OLED display, wit.....»»
Imaging below the surface reveals one of Los Angeles"s webs of faults
A major fault is often surrounded by a web of secondary faults created as the forces that cause slip deform nearby rocks. This damage zone can act as a record of fault activity, but what we can learn from it—such as how the fault may behave during.....»»
New opportunities for organic synthesis under superheated flow conditions
Research programs from the Center for Integrated Technology and Organic Synthesis of the University of Liège (Belgium), demonstrate the many opportunities offered by micro/mesofluidic technologies to explore new reaction spaces......»»