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Chemistry News - January 2010 Archives
 | Naturally occurring methane hydrate may represent an enormous source of methane, the main component of natural gas, and could ultimately augment conventional natural gas supplies. ...> Full Article |
Some natural latexes are the main ingredient in the extraction of natural rubber, an indispensable raw material for all kinds of industries and essential for the manufacture of surgical gloves, condoms or tires.
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 | In the January 29 issue of Science, a team from Harvard led by Vinothan Manoharan and Michael Brenner, presents additional clues to how and why groups of atoms and molecules may favor less symmetrical and more complex, flexible geometric patterns.
The answer relates to a familiar concept in physics -- entropy. The researchers literally first caught sight of the link by using magnetic "stick and ball" construction toys. ...> Full Article |
Like a Venus flytrap, a material developed at Northwestern University permanently traps only its desired prey, the radioactive ion cesium, and not harmless sodium ions. The material can remove 100 percent of the cesium -- found in nuclear waste but very difficult to clean up -- from a sodium-heavy solution. It is cesium itself that triggers a structural change in the material, causing it to snap shut its pores and trap the cesium ions.
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X-rays can do a lot of useful things but who knew they could cause crystals to form? Northwestern University researchers have discovered that X-rays can trigger the formation of a new type of crystal: charged cylindrical filaments ordered like a bundle of pencils experiencing repulsive forces, which is unknown in crystals. The results open the door to using X-rays to control the structure of materials or to develop novel biomedical therapies.
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To make thin films for semiconductors in electronic devices, layers of atoms must be grown in neat, crystalline sheets. But while some materials grow smooth crystals, others tend to develop bumps and defects -- a serious problem for thin-film manufacturing. Cornell physicists shed new light on how atoms arrange themselves into thin films.
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 | The "Parasols" in Seville feature components that are designed to be glued instead of bolted together. To prevent the adhesive from melting, it needs to withstand temperatures of up to 60 degrees. Researchers have optimized the adhesive's resistance to high temperatures. ...> Full Article |
 | Abandon any notion that the duck-billed platypus is a soft and cuddly creature -- maybe like Perry the Platypus in the Phineas and Ferb cartoon. The males can deliver a mega-sting that causes immediate, excruciating pain, like hundreds of hornet stings, leaving victims incapacitated for weeks. Now scientists are reporting an advance toward deciphering the chemical composition of the venom, with the first identification of a dozen protein building blocks. ...> Full Article |
 | In ski sports, it's often only a second that separates the winners from the losers. Using equipment made of the right materials can therefore make all the difference. Researchers are simulating the gliding effects that occur when skis travel over snow -- and creating super fast skis. ...> Full Article |
Chemists at the University of Leicester have received a grant to develop environmentally sustainable solvent technologies.
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 | Berkeley Lab researchers have developed a "molecular worm" algorithm that makes it easier and faster to simulate the passage of a molecule through the labyrinth of a chemical system, a progression that is critical to catalysis and other important chemical processes. ...> Full Article |
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