Chemical Reaction Current Events

Chemical Reaction Current Events, Chemical Reaction News Articles.
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Key piece of puzzle sheds light on function of ribosomes
When ribosomes produce protein in all living cells, they do so through a chemical reaction that happens so fast that scientists have been puzzled. Using large quantum mechanical calculations of the reaction center of the ribosome, researchers at Uppsala University in Sweden can now provide the first detailed picture of the reaction. The findings are published in the Web edition of Proceedings of the National Academy of Sciences. (2010-01-13)

Resonance-enhanced tunneling induces F+H2 reaction in interstellar clouds
Scientists from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences and their collaborators investigated the mechanism of rapid reactivity of the F + H2 reaction at low temperature and found that rapid reactivity was actually induced by resonance-enhanced tunneling. (2019-06-24)

Natural chemistry finds its way to market
Faster reaction rates, a substantially higher yield and a cleaner production process than is currently possible in the chemical industry. That is the result of a new sustainable chemical process that researchers from Universiteit van Amsterdam and Radboud Universiteit Nijmegen have developed with support from NWO ACTS (Advanced Chemical Technologies for Sustainability). A patent has recently been requested for this discovery. (2005-11-11)

Celebrating the centennial of a landmark in culinary chemistry
Billions of people around the world today will unknowingly perform a chemical reaction first reported 100 years ago. And the centennial of the Maillard reaction -- which gives delightful flavor to foods ranging from grilled meat to baked bread to coffee -- is the topic of a fascinating article in the current edition of Chemical & Engineering News. C&EN is the weekly news magazine of the American Chemical Society, the world's largest scientific society. (2012-10-03)

Biochemistry: Combining two catalytic worlds
Researchers of the Ruhr-Universität Bochum have combined biological and chemical catalysts in a system to create a common product. The two catalyst types usually need very different environmental conditions so the scientists managed to encapsulate one of them in a gel matrix. This resulted in different spaces of reaction, in which the reaction could proceed gradually as a cascade. In this way, biocatalysis could be easily integrated in chemical synthesis routes. (2016-10-19)

Osaka chemists build new chemical structures on unreactive bonds
Osaka University organic chemists transform strong carbon fluorine bonds into crowded quaternary carbon centers with cobalt catalyzed Grignard chemistry. (2017-07-26)

The water surface is a fantastic place for chemical reactions
Using an advanced technique, scientists from the RIKEN Cluster for Pioneering Research have demonstrated that a chemical reaction powered by light takes place ten thousand times faster at the air-water interface--what we usually call the water surface--than in the bulk of the water, even when the light has equivalent energy. This finding could help our understanding of the many important chemical and biological processes that take place at the water surface. (2021-02-15)

Atom By Atom Chemistry On A Catalytic Surface
A group of scientists at the Fritz Haber Institute of the Max Planck Society in Berlin achieved to view the individual atoms and molecules during a chemical reaction and to measure reaction rates by analyzing the number of atoms reacting per time interval. This work directly relates atomic rates with the macroscopic quantities of ordinary chemistry. (1997-12-12)

'Frozen' copper behaves as noble metal in catalysis: study
A new study by scientists from the Dalian Institute of Chemical Physics shows that the electron structure of Cu can be changed, assisted by high energy plasma, making Cu exhibit significantly different catalytic behaviors than normal Cu in selective hydrogenation reactions. (2018-12-21)

Nanoencapsulation: Chemists at TSRI discover a new and simple way of controlling reactions
A group of scientists at The Scripps Research Institute (TSRI) were able to demonstrate complex system behavior among small, reacting organic molecules by putting them in and out of a nanocapsule. In the current issue of Nature, a report from a group led by Julius Rebek, Jr., Ph.D., demonstrated that they could achieve chemical amplification without the presence of an autocatalyst. (2002-01-24)

Total synthesis of flueggenine C via an accelerated intermolecular Rauhut-Currier reaction
The first total synthesis of dimeric securinega alkaloid (-)-flueggenine C was completed via an accelerated intermolecular Rauhut-Currier (RC) reaction. The research team led by Professor Sunkyu Han in the Department of Chemistry succeeded in synthesizing the natural product by reinventing the conventional RC reaction. (2017-05-22)

Enhancement in rate of photocatalysis upon catalyst recycling
Finding easier and more economical ways of activating chemical reactions has been the focus of several studies over the years. A photocatalyst can increase the rate of a reaction when activated by light. Recyclability is an important aspect of heterogeneous photo-catalysts. In a seminal finding, scientists at TIFR show an improvement in photo catalysis with increasing number of catalytic cycles. (2016-11-01)

Oscillating pattern in nanoparticle crystallization
In order to survive, biological systems need to form patterns and organise themselves. Scientists at the Max Planck Institute for Colloids and Interfaces in Potsdam, Germany, have now combined self-organisation with chemical pattern formation. They coupled an oscillating chemical reaction with polymer-controlled crystallization and self-organization in barium carbonate. In this way, they proved that oscillating reactions -- like the renowned Belousov-Zhabotinsky reaction -- can also take place in multi-phase systems. (2006-06-30)

Chinese scientists get first look at geometric phase effect in a chemical reaction
Researchers from the University of Science and Technology of China and the Dalian Institute of Chemical Physics carried out a combined experimental and theoretical investigation of the H+HD to H2+D reaction. They got first look at geometric phase effect in a chemical reaction. (2018-12-13)

Study of atomic movement may influence design of pharmaceuticals
Chemists at the University of Liverpool have designed a unique structure to capture the movement of atoms which may impact on future designs of pharmaceuticals. (2007-02-26)

From lemons to lemonade: Using carbon dioxide to make carbon nitride
Michigan Tech scientist Yun Han Hu has discovered a chemical reaction that not only eats up the greenhouse gas carbon dioxide, it creates some useful compounds to boot. (2012-05-21)

Better bubbling slurry
Dutch-sponsored researcher Keshav Ruthiya has made considerable improvements to a so-called slurry bubble column. The chemical industry uses these bubble columns for reactions between gases and liquids, for example, for organic wastewater purification or the synthesis of hydrocarbons. Various companies are interested in using Ruthiya's results in commercial reactors. (2005-04-14)

Water is not the same as water
Water molecules exist in two different forms with almost identical physical properties. For the first time, researchers have succeeded in separating the two forms to show that they can exhibit different chemical reactivities. These results were reported by researchers from the University of Basel and their colleagues in Hamburg in the scientific journal Nature Communications. (2018-05-29)

High-pressure chemistry in ultra small pressure cooker
Small, clever process technology is essential for the future, but is it possible? Dutch-sponsored researcher Fernando Benito López investigated the possibilities of the so-called lab-on-a-chip: microreactor chips in which chemical reactions can take place under (high) pressure. The results were very promising. The reaction rate increased compared to conventional equipment, the measurements were accurate and safety was not a problem. Moreover it was possible to follow and regulate the reaction during the process. (2007-04-13)

New chemical synthesis method can produce an exciting range of novel compounds
Researchers at Nagoya Institute of Technology have established a reaction catalyzed by Bis(imidazoline)/zinc whereby 2H-azirines react with phosphite, yielding aziridines at a high enantiomeric ratio. Given the value of existing aziridines as chemical building blocks as well as medications such as the chemotherapy agent mitomycin C and the antibiotics azicemicins, this reaction system could provide a range of new targets with pharmaceutical potential. (2017-07-04)

OU engineers discover novel role of water in production of renewable fuels
University of Oklahoma engineers in collaboration with the University of Tulsa have discovered a novel approach for the water-assisted upgrading of the renewable chemical, furfural, doubling or tripling the rate of conversion. (2019-04-01)

Carbon dioxide as a raw material
Researchers at the Ruhr-Universität Bochum have found a way to turn climate-damaging CO2 into an alcohol that could serve as a raw material for the chemical industry - without producing large amounts of salt waste that usually arise. The reaction mechanism is described by the team around Timo Wendling and Prof Dr Lukas Goossen together with a colleague of the Technical University of Kaiserslautern in the journal 'Chemistry - A European Journal'. (2018-04-17)

DGIST succeeded in materials synthesis for high efficiency in biological reaction
DGIST Professor Jaeheung Cho in the Department of Emerging Materials Science secured materials that lead aldehyde deformylation reaction. Confirmed the nucleophilic reactions by biomimetic materials... Expects to bring positive impacts on related research. (2019-08-19)

Is the simplest chemical reaction really that simple?
New research by scientists at the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) has shown, surprisingly, in the simplest, well-studied reaction, there is still uncovered mechanism. It leads to clear quantum interference and verifies again that Nature does 'play dice.' (2020-05-14)

Oxygen sponge saves energy during the production of plastics
Dutch researcher Bart de Graaf has developed a solid oxygen carrier, a sort of oxygen sponge. The oxygen from the sponge reacts with hydrogen to produce water. With De Graaf's discovery a lot of energy can be saved during the production of raw materials for plastics. (2005-02-11)

Safer, cheaper building blocks for future anti-HIV and cancer drugs
A team of researchers from KU Leuven, in Belgium, has developed an economical, reliable and heavy metal-free chemical reaction that yields fully functional 1,2,3-triazoles. Triazoles are chemical compounds that can be used as building blocks for more complex chemical compounds, including pharmaceutical drugs. (2014-07-03)

Software library to serve for faster chemical reaction processing
Big Data has become ubiquitous in recent years, and especially so in disciplines with heterogeneous and complex data patterns. This is particularly true for chemistry. (2019-05-13)

Chemist stitches up speedier chemical reactions
University of Calgary chemist Warren Piers outlines the inner workings of the Piers catalyst in a new paper in Nature Chemistry online. (2010-05-09)

Mechanical force as a new way of starting chemical reactions
Researchers have shown mechanical force can start chemical reactions, making them cheaper, more broadly applicable, and more environmentally friendly than conventional methods. (2019-12-19)

How solvent molecules cooperate in reactions
Molecules from the solvent environment that at first glance seem to be uninvolved can be essential for chemical reactions. This has been shown by researchers studying the formation of an ether in pure solvents and in their mixtures. They explained the underlying mechanisms in detail using advanced spectroscopic and theoretical techniques. Conclusion: even solvent molecules that do not participate directly in the reaction are essential for the reaction process and can significantly influence reaction partners. (2016-10-06)

Emory chemists reveal challenge to reaction theory
For nearly 75 years, transition-state theory has guided chemists in how they view the way chemical reactions proceed. Recent research by Emory University chemists is challenging the long-held theory, showing that in some cases chemical reactions can proceed via a path that completely bypasses the (2004-12-17)

Energy Flow In Molecules Can Affect Reaction Rates, Chemists Say
The transfer of vibrational energy within a molecule -- long thought to occur nearly instantaneously -- can actually take place so slowly that overall reaction rates are affected, researchers at the University of Illinois say. (1997-12-04)

Scientists discover a natural adhesive with biomedical applications
Chemists created a nonpermanent adhesive from a natural chemical reaction that can be used in the biomedical field. This discovery may benefit tissue repair or drug delivery. The scientific journal Angewandte Chemie recently published this collaborative work between LSU and University of Sheffield researchers. (2016-03-08)

Accelerating chemical reactions without direct contact with a catalyst
Northwestern University researchers demonstrate a chemical reaction produced through an intermediary created by a separate chemical reaction, findings that could impact environmental remediation and fuel production. (2020-01-31)

RUDN University chemist suggested synthesizing bioactive substances using a copper catalyst
A chemist from RUDN University used a copper catalyst in the click reaction of triazole synthesis. Triazoles are bioactive substances that are used to treat fungal diseases and synthesize pharmaceutical drugs and also play a role in polymer chemistry. The catalyst not only accelerated the reaction several times but also helped perform it at room temperature and without any bases or solvents. The reaction turned out to be almost 100% effective and had no by-products. (2020-10-22)

Batch control makes chemical reactions easier to manage
Two Dutch researchers have developed a method for managing so-called batch productions. During a batch production, substances react in a reactor vessel according to a certain recipe to produce an end product. After the reaction, the reactor is emptied and a new reaction with the same recipe is started. (2004-04-13)

Sticks and stones may break your bones, but this reaction edits skeletons
Marcos G. Suero and his research group at the Institute of Chemical Research of Catalonia (ICIQ) present a new reaction that allows for the edition of organic molecule's skeletons, opening up new avenues of research. (2019-09-13)

Light-induced modification of a carboxylic acid with an aminocyclopropenone
Researchers at Kanazawa University report in The Journal of Organic Chemistry that carboxylic acids, functional groups contained in biomolecules, drugs, and materials can be readily modified by light-induced organic reactions using an aminocyclopropenone. This discovery opens up new pathways for carboxylic acid modification with potential applications including determination of drug target proteins, elucidation of protein function, and synthesis of functionalized polymer materials. (2018-12-12)

Quantum resonances near absolute zero
Prof. YANG Xueming from the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences and Prof. YANG Tiangang from the Southern University of Science and Technology discussed significant advances in the study of quantum resonances in atomic and molecular collisions at near absolute zero temperature. (2020-05-07)

Chemical evolution -- One-pot wonder
Before life, there was RNA: Scientists at Ludwig-Maximilians-Universitaet (LMU) in Munich show how the four different letters of this genetic alphabet could be created from simple precursor molecules on early Earth -- under the same environmental conditions. (2019-10-09)

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