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Latest chemical bond Stories

2011-06-09 23:41:18

In chemistry, so-called aromatic molecules compose a large and versatile family of chemical compounds that are the stuff of pharmaceuticals, electronic materials and consumer products ranging from sunscreen to plastic soda bottles. Writing in the current online issue (June 9) of the journal Science, a team led by University of Wisconsin-Madison chemistry Professor Shannon Stahl reports a new, environmentally friendly way to make substituted aromatic molecules that can be customized for...

2011-04-01 15:26:04

Avila scientists publish 'The Resurgence of Covalent Drugs' in Nature Reviews Drug Discovery; publication recognizes the potential of rational covalent drug design to expand the breadth of therapeutic use of targeted covalent drugs Avila Therapeuticsâ“ž¢, Inc., a biotechnology company developing novel targeted covalent drugs, today announced the publication of a scientific review article in Nature Reviews Drug Discovery titled "The Resurgence of Covalent Drugs"...

2010-12-23 17:50:35

UA scientists have inserted metal atoms into methane gas molecules -- a potential advancement for industrial hydrocarbon chemistry and our understanding of how nature uses metals in the molecules of living organisms For the first time, chemists have succeeded in plugging a metal atom into a methane gas molecule, thereby creating a new compound that could be a key in opening up new production processes for the chemical industry, especially for the synthesis of organic compounds, which in turn...

2010-10-08 14:35:50

An approach pioneered by researchers at North Carolina State University gives scientists new insight into the way silicon bonds with other materials at the atomic level. This technique could lead to improved understanding of and control over bond formation at the atomic level, and opportunities for the creation of new devices and more efficient microchips. Manufacturers build silicon-based devices from layers of different materials. Bonds "“ the chemical interaction between adjacent...

2010-09-30 19:49:25

Rice researchers find metallacarboranes may meet DOE storage goals New research by Rice University scientists suggests that a class of material known as metallacarborane could store hydrogen at or better than benchmarks set by the United States Department of Energy (DOE) Hydrogen Program for 2015. The work could receive wide attention as hydrogen comes into play as a fuel of the future for cars, in fuel cells and by industry. The new study by Rice theoretical physicist Boris Yakobson and his...

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2010-08-05 09:24:34

An international team of scientists led by groups from the Max Planck Institute of Quantum Optics (MPQ) in Garching, Germany, and from the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley has used ultrashort flashes of laser light to directly observe the movement of an atom's outer electrons for the first time. Through a process called attosecond absorption spectroscopy, researchers were able to time the oscillations between...

2010-07-28 19:04:59

Scientists at the National Research Council of Canada (NRC) and the University of Ottawa (uOttawa) enjoyed a bird's eye view of a chemical bond as it breaks. The making and breaking of chemical bonds underlie the biochemical processes of life itself. A greater understanding of the quantum processes that lead to chemical reactions may lead to new strategies in the design and control of molecules "” ultimately leading to scientific breakthroughs in health care and diagnostic medicine,...

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2010-06-07 06:35:00

In a paper in Nature Chemistry, Vivek Shenoy and colleagues pinpointed noncarbon atoms that create defects when graphene is produced through a technique called graphene-oxide reduction. The researchers also propose how to make that technique more efficient by precisely applying hydrogen "“ rather than heat "“ to remove the impurities. Graphene, a carbon sheet that is one-atom thick, may be at the center of the next revolution in material science. These ultrathin sheets hold great...

2010-02-17 08:44:04

Powerful concept offers new approach to understanding surfaces of materials A collaboration between researchers at Northwestern University's Center for Catalysis and scientists at Oxford University has produced a new approach for understanding surfaces, particularly metal oxide surfaces, widely used in industry as supports for catalysts. This knowledge of the surface layer of atoms is critical to understanding a material's overall properties. The findings were published online Feb. 14 by the...

2009-12-05 14:37:49

Some atoms don't always follow the rules. Take the beryllium dimer, a seemingly simple molecule made up of two atoms that University of Delaware physicists Krzysztof Szalewicz and Konrad Patkowski and colleague Vladimír Spirko of the Academy of Sciences of the Czech Republic report on in the Dec. 4 edition of the journal Science. Beryllium is a strong, hard, toxic metal found naturally in minerals such as emeralds and commonly used as an alloy with other metals in many...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'