News tagged with chemical science
Chemists create protein structure database
(PhysOrg.com) -- Any chemist with access to the Internet can now use a powerful tool to help them accurately identify the structure of a protein, thanks to recently published work led by Harold A. Scheraga, Cornell's Todd ...
Sep 09, 2009 |
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Study confirms classic theory on the origins of biodiversity
(PhysOrg.com) -- A Cornell study on the diversity of milkweed plants has used new techniques to prove an old theory that explains how the arms race between attacking insects and defended plants led to great ...
Sep 09, 2009 |
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New method monitors early sign of oxidative stress in cancer
(PhysOrg.com) -- The growth of cancerous tumors is fueled, at least in part, by the buildup of free radicals -- highly reactive oxygen-containing molecules.
Sep 08, 2009 |
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Camera flash turns an insulating material into a conductor
An insulator can now be transformed to conduct electricity by an ordinary camera flash.
Aug 12, 2009 |
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Chemists discover twisted molecules that pick their targets
New York University chemists have discovered how to make molecules with a twist—the molecules fold in to twisted helical shapes that can accelerate selected chemical reactions. The research, reported in the latest issue of ...
Aug 10, 2009 |
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Researchers show how organic carbon compounds emitted by trees affect air quality
A previously unrecognized player in the process by which gases produced by trees and other plants become aerosols—microscopically small particles in the atmosphere—has been discovered by a research team led ...
Aug 06, 2009 |
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Bringing solar power to the masses
On a 104-degree Friday in July when sunlight bathed The University of Arizona campus, doctoral student Dio Placencia sat before a noisy vacuum chamber in the Chemical Sciences Building trying to advance the renewable energy ...
Technology / Energy & Green Tech
Aug 05, 2009 |
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Chemists explain the switchboards in our cells
Our cells are controlled by billions of molecular "switches" and chemists at UC Santa Barbara have developed a theory that explains how these molecules work. Their findings may significantly help efforts to ...
Aug 03, 2009 |
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New isotope cluster could lead to better understanding of atmospheric carbon dioxide
(PhysOrg.com) -- A team of researchers has discovered an unexpected concentration of a certain isotopic molecule in parts of the stratosphere that could have implications for understanding the carbon cycle ...
Space & Earth / Earth Sciences
Jul 14, 2009 |
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Sex involved in plant defense
Why do some plants defend themselves from insect attacks better than others? New evidence shows that the difference might be due to whether they're getting any plant love.
Jul 13, 2009 |
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Sulfate lens enhances climate warming properties of atmospheric soot
Particulate pollution thought to be holding climate change in check by reflecting sunlight instead enhances warming when combined with airborne soot, a new study has found.
Space & Earth / Earth Sciences
Jun 29, 2009 |
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'Chemical Nose' to Sniff Out Cancer Earlier, Improve Treatment Options
(PhysOrg.com) -- Using a "chemical nose" array of nanoparticles and polymers, researchers at the University of Massachusetts Amherst have developed a fundamentally new, more effective way to differentiate ...
Chemistry / Analytical Chemistry
Jun 23, 2009 |
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Researchers observe single protein dimers wavering between two symmetrically opposed structures
Researchers at The Scripps Research Institute, the University of California, San Diego, and Ohio State University have used a very sensitive fluorescence technique to find that a bacterial protein thought to exist in one ...
Jun 19, 2009 |
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Researchers achieve breakthrough in effort to develop tiny biological fuel cells
University of Georgia researchers have developed a successful way to grow molecular wire brushes that conduct electrical charges, a first step in developing biological fuel cells that could power pacemakers, cochlear implants ...
Nanotechnology / Nanomaterials
Jun 19, 2009 |
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How Social Insects Recognize Dead Nestmates
(PhysOrg.com) -- When an ant dies in an ant nest or near one, its body is quickly picked up by living ants and removed from the colony, thus limiting the risk of colony infection by pathogens from the corpse.
May 05, 2009 |
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