Latest chemical reaction Stories

2011-09-29 23:15:46

University of Utah chemists find new way to design important molecules University of Utah chemists developed a method to design and test new catalysts, which are substances that speed chemical reactions and are crucial for producing energy, chemicals and industrial products. By using the new method, the chemists also made a discovery that will make it easier to design future catalysts. The discovery: the sizes and electronic properties of catalysts interact to affect how well a catalyst...

2011-07-22 01:23:27

Researchers design a self-assembling material that can house other molecules Chemical reactions happen all of the time: some things burn or rust, others react to light exposure--even batteries use chemical reactions to supply electricity. One of the big challenges chemists continually face is finding new ways to control these reactions or create conditions that promote desirable reactions and limit undesirable ones. Recently, researchers at New York University demonstrated an ability to make...

2011-03-10 23:39:15

UCLA nanotech research mimics enzymes in directing chemical reactions Good chemists are passive-aggressive "” they manipulate molecules without actually touching them. In a feat of manipulating substances at the nanoscale, UCLA researchers and colleagues demonstrated a method for isolating two molecules together on a substrate and controlling how those two molecules react when excited with ultraviolet light, making detailed observations both before and after the reaction. Their research...

2010-12-02 14:09:55

New research at the University of North Carolina at Chapel Hill investigating the effect of temperature on extremely slow chemical reactions suggests that the time required for evolution on a warm earth is shorter than critics might expect. There has been controversy about whether life originated in a hot or cold environment, and about whether enough time has elapsed for life to have evolved to its present complexity. But new research at the University of North Carolina at Chapel Hill...

2010-11-08 14:27:45

By Kim McDonald, UC San Diego Chemists at UC San Diego have uncovered a new chemical reaction on tiny particulates in the atmosphere that could allow scientists to gain a glimpse from ancient rocks of what the atmospheres of the Earth and Mars were like hundreds of millions years ago. Their discovery also provides a simple chemical explanation for the unusual carbonate inclusions found in a meteorite from Mars that was once thought by some scientists to be evidence of ancient Martian life....

2010-09-17 13:50:59

UCLA physicists have taken a significant step in controlling chemical reactions mechanically, an important advance in nanotechnology, UCLA physics professor Giovanni Zocchi and colleagues report. Chemical reactions in the cell are catalyzed by enzymes, which are protein molecules that speed up reactions. Each protein catalyzes a specific reaction. In a chemical reaction, two molecules collide and exchange atoms; the enzyme is the third party, the "midwife to the reaction." But the...

2010-09-01 21:46:20

To watch a magician transform a vase of flowers into a rabbit, it's best to have a front-row seat. Likewise, for chemical transformations in solution, the best view belongs to the molecular spectators closest to the action.Those special molecules comprise the "first solvation shell," and although it has been known for decades that they can sense and dictate the fate of nearly every chemical reaction, it has been virtually impossible to watch them respond. University of Michigan researchers...

2010-05-26 08:58:00

COLUMBIA, Md., May 26 /PRNewswire/ -- Reaction Progress Kinetic Analysis (RPKA) streamlines kinetic studies by exploiting extensive data available from accurate in situ monitoring of global reaction progress under synthetically relevant conditions, where the concentrations of two or more reactants are changing simultaneously - in fact, in the same manner that they are expected to change during practical synthesis. This contrasts with the classical kinetics approach, which uses distorted...

2010-02-16 15:40:05

McGill researcher develops eco-friendly nanocatalyst A new nanotech catalyst developed by McGill University Chemists Chao-Jun Li, Audrey Moores and their colleagues offers industry an opportunity to reduce the use of expensive and toxic heavy metals. Catalysts are substances used to facilitate and drive chemical reactions. Although chemists have long been aware of the ecological and economic impact of traditional chemical catalysts and do attempt to reuse their materials, it is generally...

2010-02-16 07:56:43

Researchers report that they have discovered "“ and now know how to exploit "“ an unusual chemical reaction mechanism that allows malaria parasites and many disease-causing bacteria to survive. The research team, from the University of Illinois, also has developed the first potent inhibitor of this chemical reaction. The findings appear in the Proceedings of the National Academy of Sciences. "There is an urgent need for new drugs to combat malaria and bacterial diseases such as...

Latest chemical reaction Reference Libraries

2014-01-12 00:00:00

Chemistry is a physical science concerned with the composition, structure, and properties of matter. It also deals with the changes that matter undergoes during chemical reactions. It incorporates the studies of various atoms, molecules, crystals and other aggregates which can be combined or isolated and concepts of energy and entropy through which chemical processes occur. Modern chemistry (from the Egyptian kēme, meaning "earth") evolved from alchemy following the chemical revolution...

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