Chemical Reaction Current Events | Chemical Reaction News
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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. view more (2007-04-16)
New technique measures chemical composition of tiny details
The method which the Eindhoven have developed is based on the radiation emitted by an object when it is irradiated by a beam of electrons. The measurable phenomenon occurs because the electrons in the beam collide with electrons in the atoms making up the object so that they enter an excited state. When the electrons return to the free state, with... view more... (2000-01-18)
Enzymatic reaction rate surprises researchers
Enzymatic reactions, which are crucial in biological processes, can occur much faster than previously thought possible, as researchers at the biophysics department of the Faculty of Exact Sciences of the Vrije Universiteit Amsterdam have discovered. Their findings were published on line on 5 May in Nature Structural Biology (www.nature.com/nsb).... view more... (2003-05-07)
Solution to elusive problem
Scientists at the University of Leicester are on the way to solving a problem that has long beset chemists trying to study chemical reactions. To establish reaction mechanisms the observation of reaction intermediates is vital, but they are incredibly short-lived under normal conditions, and therefore difficult to detect. Freezing... view more... (2003-01-21)
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. Chemist Eric van Sprang and chemical engineer... view more... (2004-04-13)
University of Pennsylvania Chemists Reinvent the Science and Industry of Making Plastics
Chemists at the University of Pennsylvania have created a new process for free radical polymerization, the chemical reaction responsible for creating an enormous array of everyday plastic products, from Styrofoam cups to PVC tubing to car parts. view more (2006-10-13)
Shedding light on cancer cells
Scientists label cells with coloured or glowing chemicals to observe how basic cellular activities differ between healthy and cancerous cells. Existing techniques for labelling cells are either too slow or too toxic to perform on live cells. view more (2009-09-25)
Controlling for size may also prevent cancer
Scientists at Johns Hopkins recently discovered that a chemical chain reaction that controls organ size in animals ranging from insects to humans could mean the difference between normal growth and cancer. view more (2007-09-21)
Scientists discover new chemical reaction for DNA production in bacteria and viruses
A team of researchers has discovered a new chemical reaction for producing one of the four nucleotides, or building blocks, needed to build DNA. view more (2009-04-17)
Scientists shed light on the mystery of photosynthesis
Scientists at the University of Sheffield are part of an international team that has become the first to successfully discover how the component parts of photosynthesis fit together within the cell membrane. In a paper, The native architecture of a photosynthetic membrane, published in Nature on 26 August 2004, they describe how the configuration... view more... (2004-08-25)
Quantum computers could excel in modeling chemical reactions
Quantum computers would likely outperform conventional computers in simulating chemical reactions involving more than four atoms, according to scientists at Harvard University, the Massachusetts Institute of Technology, and Haverford College. view more (2008-11-21)
Chemistry by the thimbleful
The trend toward miniaturization has also taken a hold in chemistry because in miniaturized reactors, the risk of explosions is nearly none and the reaction can be better controlled. At the Analytica trade fair scientists show how to improve chemical engineering and production. -------------- The dinosaurs of the chemical industry are not facing... view more... (2002-04-16)
Pitt professor designs less-risky reactor for clean, safe energy
Reactors that burn hydrogen or natural gas to generate energy can be dirty and dangerous. The mix of air with hydrogen or natural gas can explode easily if composition and temperature are not carefully controlled. And reactors often produce polluting byproducts. view more (2006-09-13)
Step on the gas — New fuel cell design adds control, reduces complexity
When Princeton University engineers want to increase the power output of their new fuel cell, they just give it a little more gas - hydrogen gas, to be exact. view more (2007-01-17)
Extreme makeover chemistry style
In revisiting a chemical reaction that's been in the literature for several decades and adding a new wrinkle of their own, researchers with Berkeley Lab and the University of California (UC) Berkeley have discovered a mild and relatively inexpensive procedure for removing oxygen from biomass. view more (2009-06-17)
Computer predicts reactions between molecules and surfaces, with 'chemical precision'
Good news for heterogeneous catalysis and the hydrogen economy: computers can now be used to make accurate predictions of the reactions of (hydrogen) molecules with surfaces. An international team of researchers, headed by Leiden theoretical chemist Geert-Jan Kroes, published on this subject this week in the journal Science. view more (2009-11-09)
Penn study on olfactory nerve cells shows why we smell better when we sniff
Unlike most of our sensory systems that detect only one type of stimuli, our sense of smell works double duty, detecting both chemical and mechanical stimuli to improve how we smell, according to University of Pennsylvania School of Medicine researchers in the March issue of Nature Neuroscience. view more (2007-03-14)
EU chemical and biotech players join forces to foster sustainable and competitive chemistry
Although Europe is a world leader in chemical production, holding 28% of the world market, its proportion of global trade has dropped by 4% over the past decade. Today in Brussels chemical and biotechnology sector organisations CEFIC and EuropaBIO, with the support of the European Commission, launched a European "Technology Platform on... view more... (2004-07-06)
How left-handed amino acids got ahead: a demonstration of the evolution of biological homochirality in the lab
A chemical reaction that demonstrates how key molecules in the biological world might have come to be predominately left or right handed has been reported by scientists at Imperial College London. Ever since discovering that the building blocks of the biological world, such as amino acids and sugars, are distinctively left or right handed -... view more... (2004-06-21)
Researchers discover RNA repair system in bacteria
In new papers appearing this month in Science and the Proceedings of the National Academy of Sciences, University of Illinois biochemistry professor Raven H. Huang and his colleagues describe the first RNA repair system to be discovered in bacteria. view more (2009-10-13)
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