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Latest Molecule Stories

2009-08-13 12:55:00

Research at the University of Liverpool has found how mirror-image molecules gain control over each other and dictate the physical state of superstructures.The research team studied 'chiral' or 'different-handed' molecules which are distinguishable by their inability to be superimposed onto their mirror image. Such molecules are common "“ proteins use just one mirror form of amino acids and DNA, one form of sugars. Chirality leads to profound differences in the way a molecule functions...

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2009-07-15 23:55:00

Researchers who design and simulate molecules are facing a technological traffic jam.The bottleneck is caused by the amount of time--ranging from days to years--a computer needs to run complex mathematical equations, or algorithms, used by scientists and engineers to develop more effective drugs, catalysts for fuel cells and other molecular-based materials and applications.Todd Martínez, a professor of chemistry at Stanford University, may just have the answer for breaking...

2009-06-30 16:52:32

U.S. physicists say they have discovered giant Rydberg atom molecules with a bond as large as a red blood cell. The University of Oklahoma researchers led by Professor James Shaffer said determining how Rydberg molecules interact is important because Rydberg atoms are a key ingredient in atom based quantum computation schemes. The scientists said giant Rydberg molecules are formed when two Rydberg atoms interact. A Rydberg atom is an atom that has at least one electron orbiting the nucleus at...

2009-06-24 11:09:48

A group of University of Oklahoma researchers led by Dr. James P. Shaffer, Homer L. Dodge Department of Physics and Astronomy, have discovered giant Rydberg molecules with a bond as large as a red blood cell. Determining how Rydberg molecules interact is important because Rydberg atoms are a key ingredient in atom based quantum computation schemes. Giant Rydberg molecules are formed when two Rydberg atoms interact. A Rydberg atom is an atom that has at least one electron orbiting the nucleus...

2009-06-17 15:08:22

From balloons to rubber bands, things always break faster when stretched. Or do they? University of Illinois scientists studying chemical bonds now have shown this isn't always the case, and their results may have profound implications for the stability of proteins to mechanical stress and the design of new high-tech polymers."Our findings contradict the intuitive notion that molecules are like rubber bands in that when we pull on a chemical bond, it should always break faster," said...

2009-05-27 11:39:02

Researchers at the University of Texas have identified an abnormality in molecules they believe is responsible for one form of Lou Gehrig's disease. The molecules, known as immature superoxide dismutase 1 or SOD1, can't interact normally with metals that provide stability and instead become destructive knots that are seen in one inherited form of amyotrophic lateral sclerosis, the formal name of Lou Gehrig's disease, the University of Texas Health Science Center at San Antonio reports. The...

2009-05-14 15:27:08

The natural world is a shining example when it comes to the self-assembly of molecules. However, it has not disclosed all of its secrets yet. Controlling the shape and structure of self-assembled systems continues to be a stumbling block for scientists. Yet such structures, in which the different molecules cooperate with each other, can have unrivalled characteristics. Self-assembly could provide the way forward for the future mass production of nanomaterials, nanodrugs and...

2009-05-05 12:00:00

Shortest carbon-chlorine single bond detected until nowThe description of compounds and interactions between atoms is one of the basic objectives of chemistry. Admittedly, chemical bonding models, which describe these properties very well, already exist. However, any deviation from the normal factors may lead to improving the models further. Chemists with Professor Thomas M. Klapötke at Ludwig-Maximilians-Universität (LMU) Mnchen have now analyzed a molecule, which has an extremely...

2009-05-01 08:54:15

The discovery of a soccer-ball-shaped molecule made of 60 carbon atoms was a minor revolution in chemistry: Fullerenes are spherical, highly symmetrical molecules made of carbon atoms, and are the third form of carbon after diamond and graphite. However, the C60 "soccer ball" is not the only fullerene by far. Among its less stable relations is the C80 fullerene. There are seven different possible structural forms that have 80 carbon atoms in a symmetrical, spherical arrangement. Among the...

2009-04-29 15:33:00

PITTSBURGH, April 29 /PRNewswire-USNewswire/ -- High school and undergraduate students now have a ringside seat to watch atoms and molecules in super-slow motion and vivid color, as they jostle and bump each other within the cozy environs of a human cell or a beaker on a lab bench. In "Big Numbers in Small Spaces: Simulating Atoms, Molecules and Brownian Motion," students are invited to consider how many molecules are in a single drop of water, or a single cell, and then to fly in and find...


Word of the Day
out-herod
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.
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