Submitted by Anonymous (not verified) on Tue, 2006-12-19 08:00
Carbon nanotubes are tiny garden-hose-like hollow tubes that have considerable promise for future applications such as nano-sized plumbing and nanolithography, and for the creation of numerous tiny devices such as mass sensors and actuators. Such applications require improved understanding of the mechanical properties of carbon nanotubes. Previous studies pointed out that carbon nanotubes behave like macroscopic elastic hoses similar to garden hoses made of rubber.
Submitted by Anonymous (not verified) on Tue, 2006-05-16 07:00
Jacqueline Barton, the Arthur and Marian Hanisch Memorial Professor and professor of chemistry at the California Institute of Technology, has been named the 2006 recipient of the Willard Gibbs Award. The honor was bestowed on Barton at a special award dinner hosted by the Chicago section of the American Chemical Society on May 12 in Des Plaines, Illinois.
Submitted by Anonymous (not verified) on Mon, 2006-04-10 07:00
An ongoing challenge in biochemistry is getting a handle on protein folding-that is, the way that DNA sequences determine the unique structure and functions of proteins, which then act as "biology's workhorses." Gaining mastery over the construction of proteins will someday lead to breakthroughs in medicine and pharmaceuticals.
Submitted by Anonymous (not verified) on Thu, 2005-12-01 08:00
If you can imagine the straw in your soda can being a million times smaller and made of carbon, you pretty much have a mental picture of a carbon nanotube. Scientists have been making them at will for years, but have never gotten the nanotubes to suck up liquid metal to form tiny wires. In fact, conventional wisdom and hundreds of refereed papers say that such is not even possible.
Submitted by Anonymous (not verified) on Mon, 2005-11-14 08:00
An international team of scientists has announced a new breakthrough in understanding the molecular details of how signals move around in the human brain. The work is basic research, but could help pharmacologists design new drugs for treating a host of neurological disorders, as well as drugs for reducing alcohol and nicotine craving.
Submitted by Anonymous (not verified) on Wed, 2005-10-05 07:00
Robert Grubbs, an organic chemist whose work on catalysis has led to a wide variety of applications in medicine and industry, has won the 2005 Nobel Prize in chemistry. The announcement was made this morning by the Royal Swedish Academy of Sciences in Stockholm.
Submitted by Anonymous (not verified) on Wed, 2005-09-21 07:00
Humans and insects and pond scum-and all other living things on Earth-are constantly evolving. The tiny proteins these living things are built from are also evolving, accumulating mutations mostly one at a time over billions of years. But for reasons that hitherto have been a mystery, some proteins evolve quickly, while others take their sweet time-even when they reside in the same organism.
Submitted by Anonymous (not verified) on Thu, 2005-08-18 07:00
With gasoline prices hovering at $3 per gallon, probably few Americans need convincing that another energy crisis is imminent. But what precisely is to be done about our future energy needs is still a puzzle. There's talk about a "hydrogen economy," but hydrogen itself poses some formidable challenges.