Latest Molecule Stories
Good news for heterogeneous catalysis and the hydrogen economy: computers can now be used to make accurate predictions of the reactions of (hydrogen) molecules with surfaces. An international team of researchers, headed by Leiden theoretical chemist Geert-Jan Kroes, published on this subject this week in the journal Science.Hydrogen on copperThe team developed a new method of modeling what happens when hydrogen molecules separate on a copper surface. The way is now open for calculating the...
Recently, at Arizona State University's Biodesign Institute, N.J. Tao and collaborators have found a way to make a key electrical component on a phenomenally tiny scale. Their single-molecule diode is described in this week's online edition of Nature Chemistry.In the electronics world, diodes are a versatile and ubiquitous component. Appearing in many shapes and sizes, they are used in an endless array of devices and are essential ingredients for the semiconductor industry. Making components...
University of Florida chemists have pioneered a method to tease out promising molecular structures for capturing energy, a step that could speed the development of more efficient, cheaper solar cells."This gives us a new way of studying light-matter interactions," said Valeria Kleiman, a UF associate professor of chemistry. "It enables us to study not just how the molecule reacts, but actually to change how it reacts, so we can test different energy transfer pathways and find...
Physicists get a grip on slippery molecules, and learn how the shape of nanoscopic magnetic islands affect data storageMolecules of hydrogen are difficult to steer with electric fields because of the symmetrical way that charges are distributed within them. But now researchers at ETH Zurich have found a clever technique to get a grip on the molecules. Their findings are reported in Physical Review Letters and highlighted in the September 14 issue of Physics.Electric fields can easily...
ZURICH, Aug. 28 /PRNewswire-FirstCall/ -- IBM (NYSE: IBM) scientists have been able to image the "anatomy" -- or chemical structure -- inside a molecule with unprecedented resolution, using a complex technique known as noncontact atomic force microscopy. View video: http://www.youtube.com/watch?v=jnLRl_74BZs (Logo: http://www.newscom.com/cgi-bin/prnh/20090416/IBMLOGO) The results push the exploration of using molecules and atoms at the smallest scale and could greatly impact the field...
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...
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...
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 MartÃnez, a professor of chemistry at Stanford University, may just have the answer for breaking up this...
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...
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...
