Iridium-catalyzed Z-retentive asymmetric allylic substitution reactions
In synthetic organic chemistry, Z-olefins are a challenging synthetic target to produce in the lab due to their relative thermodynamic instability. The Z-olefins form an unsaturated compound with a CnH2n formula that can be readily isomerized. Analog.....»»
New synthesis method uses light reaction on a water surface
By forming chemical bonds between atoms, complex molecules such as those needed for medicines, crop protection products, or high-performance materials are prepared using synthetic chemistry. Such synthesis reactions typically require organic solvents.....»»
How to make a GIF from a YouTube video
YouTube videos are great, but if you want to use them for some quick reactions, GIFs are better. Here's how to make a GIF from a YouTube video in three ways......»»
Discovery of a subset of human short introns that are spliced out by a novel mechanism
The well-known essential pre-mRNA splicing factor U2AF heterodimer (U2AF2–U2AF1) has been identified as mediating early splicing reactions in all introns of different lengths. However, Dr. Kazuhiro Fukumura in the Akila Mayeda lab at Fujita Health.....»»
Pore power: High-speed droplet production in microfluidic devices
Over the past two decades, microfluidic devices, which use technology to produce micrometer-sized droplets, have become crucial to various applications. These span chemical reactions, biomolecular analysis, soft-matter chemistry, and the production o.....»»
Guanine synthesis yields new insights into nitrogen"s role in nanocarbon catalysis
Recently, carbon-based catalysts—especially nitrogen-doped nanocarbons—have emerged as sustainable, reliable alternatives to the metal catalysts traditionally used to support chemical reactions......»»
Whether a racial minority or majority at their school, white teachers struggle with race relations
White workers' emotions about race and reactions to racial differences in the workplace are triggered by identity threat-induced culture shock, researchers suggest in a new study......»»
Jay Duplass talks Hades" big introduction to "Percy Jackson and the Olympians"
Jay Duplass, who plays Hades in "Percy Jackson and the Olympians," breaks down the Underworld scene and his kids' reactions to the show. For Jay Duplass and his family, Tuesday nights are reserved for Percy Jackson and the Olympians.Right when.....»»
Chemists use blockchain to simulate more than 4 billion chemical reactions essential to origins of life
Cryptocurrency is usually "mined" through the blockchain by asking a computer to perform a complicated mathematical problem in exchange for tokens of cryptocurrency. But in research appearing in the journal Chem a team of chemists has repurposed this.....»»
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.....»»
As easy as counting to ten: A new rule for catalysts" design
The "ten electron rule" provides guidance for the design of single-atom alloy catalysts for targeted chemical reactions......»»
Petunia and pansy reactions to prolonged carbon dioxide enrichment
Although crops often respond immediately to enriched CO2 concentrations (e.g., increased photosynthesis), this initial response is often not sustained throughout production, thus reducing the benefit of this input. For horticulture species, the timin.....»»
Researchers optimize 3D printing of optically active nanostructures
For about 20 years, it has been possible to modify surfaces via nanoparticles so that they concentrate or manipulate light in a desired way or trigger other reactions. Such optically active nanostructures can be found in solar cells and biological or.....»»
Decorated nanoparticles prevent anaphylaxis without causing side effects in mouse study
Northwestern University researchers have developed the first selective therapy to prevent allergic reactions, which can range in severity from itchy hives and watery eyes to trouble breathing and even death......»»
Transmitting a domino reaction using redox chemistry achieved for the first time
Domino reactions occur when the transformation of one chemical group stimulates the reaction of another attached group, or another molecule, leading to a rapid knock-on effect through the system like a row of falling dominoes. Researchers at Hokkaido.....»»
In a world run by catalysts, why is optimizing them still so tough?
We depend on catalysts to turn our milk into yogurt, to produce Post-It notes from paper pulp, and to unlock renewable energy sources like biofuels. Finding optimal catalyst materials for specific reactions requires laborious experiments and computat.....»»
Using electricity, scientists find promising new method of boosting chemical reactions
As the world moves away from gas towards electricity as a greener power source, the to-do list goes beyond cars. The vast global manufacturing network that makes everything from our batteries to our fertilizers needs to flip the switch, too......»»
Strategies to engineer metal-organic frameworks for efficient photocatalysis
The ever-increasing global energy shortage and the worsening of the environment urgently require the substitution of conventional fossil-based energy for green and sustainable energy......»»
Reusing plastic waste to kickstart radical chain reactions, improving process safety and efficiency
Single-use plastics are a major environmental concern, but now, rather than being disposed of as garbage, used plastic bags from the grocery store could be utilized to carry out a reaction that can detoxify hazardous chemicals......»»
"Goldilocks system" boosts efficiency of nickel-catalyzed reactions
In the search for cheaper, greener alternatives to routinely used precious metal catalysts like palladium, nickel has become an increasingly popular choice in the last two decades for organic chemists assembling fragments of molecules for a variety o.....»»
Multiple Chat GPT instances combine to figure out chemistry
"Coscientist" AI checks references, reads hardware manuals, and sets up reactions. Enlarge / The lab's empty because everyone's relaxing in the park while the AI does their work. (credit: Fei Yang) Despite rapid advances.....»»