News tagged with chemical science
Organic carbon from Mars, but not biological
(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...
Space & Earth / Space Exploration
May 24, 2012 |
4.4 / 5 (5) |
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Emerging theoretical framework may guide researchers through the complex world of multiblock polymers
(Phys.org) -- Thanks to advances in polymer chemistry and a wide variety of monomer constituents to choose from, the world of multiblock polymers is wide open. These polymers can result in an astonishing array ...
Apr 26, 2012 |
5 / 5 (4) |
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Physicists control quantum tunneling with light for the first time
Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunnelling is at the heart of the peculiar wave nature of particles, this ...
Apr 05, 2012 |
4.9 / 5 (15) |
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Benefits of single atoms acting as catalysts in hydrogen-related reactions
A team of researchers at Tufts University's School of Arts and Sciences and School of Engineering have discovered that individual atoms can catalyze industrially important chemical reactions such as the hydrogenation ...
Mar 08, 2012 |
2.5 / 5 (2) |
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Amoeba offers key clue to photosynthetic evolution
(PhysOrg.com) -- The major difference between plant and animal cells is the photosynthetic process, which converts light energy into chemical energy. When light isn't available, energy is generated by breaking ...
Feb 27, 2012 |
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Breakthrough in designing cheaper, more efficient catalysts for fuel cells
University of California, Berkeley, chemists are reimagining catalysts in ways that could have a profound impact on the chemical industry as well as on the growing market for hydrogen fuel cell vehicles.
Feb 23, 2012 |
4.8 / 5 (13) |
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Cockroach 'let's hook up' chemical signal could benefit endangered woodpecker
A North Carolina State University discovery of the unique chemical composition of a cockroach signal -- a "Let's hook up" sex pheromone emitted by certain female wood cockroaches to entice potential mates ...
Dec 19, 2011 |
4.8 / 5 (4) |
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Lightning sprites are out-of-this-world
Only a few decades ago, scientists discovered the existence of "sprites" 30 to 55 miles above the surface of the Earth. They're offshoots of electric discharges caused by lightning storms, and a valuable window ...
Space & Earth / Space Exploration
Nov 21, 2011 |
4.8 / 5 (13) |
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Scientists identify new class of antimalarial compounds
An international team led by scientists from the Genomics Institute of the Novartis Research Foundation (GNF) and The Scripps Research Institute has discovered a family of chemical compounds that could lead ...
Nov 17, 2011 |
3 / 5 (2) |
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Israeli wins chemistry Nobel for quasicrystals (Update 3)
Israeli scientist Dan Shechtman was awarded the Nobel Prize in chemistry on Wednesday for a discovery that faced skepticism and mockery, even prompting his expulsion from his U.S. research team, before it ...
Oct 05, 2011 |
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Building better catalysts: Chemists find new way to design important molecules
(PhysOrg.com) -- 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. ...
Sep 29, 2011 |
5 / 5 (2) |
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Inexpensive catalyst that makes hydrogen gas 10 times faster than natural enzyme
Looking to nature for their muse, researchers have used a common protein to guide the design of a material that can make energy-storing hydrogen gas. The synthetic material works 10 times faster than the original ...
Aug 11, 2011 |
4.6 / 5 (20) |
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Improving batteries' energy storage
MIT researchers have found a way to improve the energy density of a type of battery known as lithium-air (or lithium-oxygen) batteries, producing a device that could potentially pack several times more energy ...
Technology / Energy & Green Tech
Jul 25, 2011 |
4.9 / 5 (15) |
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Chemists devise better way to prepare workhorse molecules
In chemistry, so-called aromatic molecules compose a large and versatile family of chemical compounds that are the stuff of pharmaceuticals, electronic materials and consumer products ranging from sunscreen to plastic soda ...
Jun 09, 2011 |
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New driving force for chemical reactions discovered
New research just published in the journal Science by a team of chemists at the University of Georgia and colleagues in Germany shows for the first time that a mechanism called tunneling control may drive chemical reacti ...
Chemistry / Analytical Chemistry
Jun 09, 2011 |
4.8 / 5 (15) |
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