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Latest chemical reaction Stories

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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...

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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...

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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...

2009-03-24 13:12:59

U.S. government scientists say they've shown that water in hot dense environments acts as a catalyst, speeding chemical reactions without being consumed. Lawrence Livermore National Laboratory scientists said although the properties of pure water at high pressures and temperatures have long been studied, water in a reactive environment had never been researched. Lead scientist Christine Wu said she and her team studied the detonation of the high explosive pentaerythritol tetranitrate and...

2009-03-17 11:41:29

The result might help understand chemical processes in energy generation or pollution cleanupSingle oxygen atoms dancing on a metal oxide slab, glowing brighter here and dimmer there, have helped chemists better understand how water splits into oxygen and hydrogen. In the process, the scientists have visualized a chemical reaction that had previously only been talked about. The new work improves our understanding of the chemistry needed to generate hydrogen fuel from water or to clean...

2009-02-05 14:45:01

Instant pictures showing how the sun's energy moves inside plants have been taken for the first time, according to research out tomorrow (Friday 6 February) in Physical Review Letters. The images unravel some of the inner workings of the most efficient solar energy process on earth - photosynthesis. Inside a photosynthetic protein, the sun's energy is efficiently guided across the molecule to drive a chemical reaction that stores energy as food and takes in carbon dioxide. Scientists would...

2008-09-09 12:00:16

U.S. scientists say they've found a way to stimulate organic molecules that may lead to the creation of materials from new kinds of chemical reactions. Princeton University Professor David MacMillan and colleagues said their new method of catalysis might produce groundbreaking kinds of drugs and agricultural chemicals, providing a shortcut to standard multistep methods of chemical production. The method involves a weak source of light to catalyze or propel a reaction in a flask of fluid...


Latest chemical reaction Reference Libraries

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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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Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.