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.....»»
Testing begins on sensitive neutrino detector for nonproliferation and fundamental physics
Neutrinos and antineutrinos are nearly massless particles produced in many nuclear reactions, including the fission of uranium in nuclear power plants on Earth and the fusion reactions at the core of the sun......»»
Unseen travelers: Dust storms may spread bacteria and fungi around the world
When allergy season hits, many blame their reactions on the local flora in the spring. However, African Saharan-Sahelian dust plumes, large enough to register on weather radar, travel around the globe every summer, bringing their own form of air poll.....»»
A reliable and efficient computational method for finding transition states in chemical reactions
A computational method for finding transition states in chemical reactions, greatly reducing computational costs with high reliability, has been devised. Compared to the most widely used existing method, the present method reduces the total computati.....»»
Researchers develop affordable, user-friendly method for single-cell reactions at the nanoliter level
Scaling down single-cell reactions to the nanoliter level is critical to minimize the risk of contamination, increase reaction efficiency, and reduce costs. Researchers from the Single-cell Center of the Qingdao Institute of Bioenergy and Bioprocess.....»»
Using light to produce medication and plastics more efficiently
Anyone who wants to produce medication, plastics or fertilizer using conventional methods needs heat for chemical reactions—but not so with photochemistry, where light provides the energy. The process to achieve the desired product also often takes.....»»
Not just a lodger: Novel host-guest assembly provides enhanced reactivity
By design, synthetic molecules typically have specific jobs to prevent or accelerate reactions between other molecules. To help control more complicated reactions, researchers may harness spare space in one molecule to synthesize another chemical str.....»»
Study shows inverting fusion plasmas improves performance
To become commercially viable, fusion power plants must create and sustain the plasma conditions necessary for fusion reactions. However, at high temperatures and densities, plasmas often develop gradients in those temperatures and densities. These g.....»»
Greener, cheaper method to accelerate chemical reactions developed
A new, greener, and cheaper method to accelerate chemical reactions has been developed by scientists at King's College London in collaboration with the University of Barcelona and ETH Zurich. Instead of using polluting and expensive metal-based catal.....»»
Scientists develop new machine learning method for modeling chemical reactions
Researchers from Carnegie Mellon University and Los Alamos National Laboratory have used machine learning to create a model that can simulate reactive processes in a diverse set of organic materials and conditions......»»
Researchers develop first heat map for individual red blood cells
Entropy is often associated with disorder and chaos, but in biology it is related to energy efficiency and is closely linked to metabolism, the set of chemical reactions that sustain life......»»
Standing together against hate: A collective responsibility
Hate speech incidents are widespread in all areas of society and are often unchallenged by uninvolved bystanders. LMU researchers have investigated what significance the reactions of bystanders to verbal hate attacks have for the formation of social.....»»
Aluminum nanoparticles make tunable green catalysts
Catalysts unlock pathways for chemical reactions to unfold at faster and more efficient rates, and the development of new catalytic technologies is a critical part of the green energy transition......»»
New technique developed for measurement of temperature distribution inside single catalyst particle
Chemical reactions are usually accompanied by thermal effects, inevitably resulting in temperature changes in the reaction system. Therefore, temperature is an important parameter in reactions, which can affect chemical thermodynamics and reaction ki.....»»
Apple says video calling apps can choose to disable Reactions by default in iOS 17.4
With the release of iOS 17.4 and iPadOS 17.4, Apple will give video calling apps the option to turn off the new Reactions feature by default. This new Reactions feature debuted with iOS 17, iPadOS 17, and macOS Sonoma last year. The feature is ena.....»»
Eco-friendly catalyst and materials research explores pathways to renewable energy
The search for sustainable and affordable energy conversion technologies has highlighted the importance of the oxygen reduction and oxygen evolution reactions (ORR and OER). These processes are crucial for the efficiency of devices such as fuel cells.....»»
AI-driven lab speeds catalysis research
Researchers have developed a "self-driving" lab that uses artificial intelligence (AI) and automated systems to provide in-depth analyses of catalytic reactions used in chemical research and manufacturing. The new tool, called Fast-Cat, can provide m.....»»
Enhancing electrogenerated chemiluminescence of an iridium complex
Electrogenerated chemiluminescence (ECL) cells, characterized by their self-emissive nature, have gathered significant interest for prospective display applications due to their uncomplicated structure and straightforward fabrication process. These c.....»»
Novel theory-based evaluation gives a clearer picture of fusion in the sun
Most of the energy from the sun and other stars comes from a chain of nuclear fusion reactions. The end of this chain is marked by the fusion of protons with beryllium-7 to form boron-8. This process is key in determining the flow of high-energy sola.....»»
Study suggests anti-Black racism may account for conservatives" negative reactions to jobs requiring DEI statements
According to new research from Rice University and the University of Nebraska at Omaha, conservative-leaning job applicants indicate being less likely to pursue positions that require personal statements on diversity, equity and inclusion (DEI), and.....»»
Researchers expand ways to improve the selectivity of catalytic reactions
Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS), Harvard Department of Chemistry & Chemical Biology, and Utrecht University have reported on a previously elusive way to improve the selectivity of catalyt.....»»