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Latest chemical bond Stories

2012-06-01 23:00:39

Importers can now buy Surety Bonds for U.S. Customs direct and save up to 50% in the process. Surety1 is now able to provide the $50k continuous customs surety bond for the low price of just $259.00 per year**. Sacramento, CA (PRWEB) June 01, 2012 Surety Solutions Insurance Services, Inc., http://www.surety1.com/customs, provides surety bonds that are required by the US Customs Service for all importers bringing goods into the United States. By buying direct from Surety1, an importer can...

2012-06-01 11:09:13

Scientists at the Vienna University of Technology found a method to locate single gold atoms on a surface. This should pave the way to better and cheaper catalysts. Most people value large chunks of gold — but scientists at the Vienna University of Technology are interested in gold at the smallest possible scale, because single gold atoms are potentially the most reactive catalysts for chemical reactions. However, when gold atoms are placed on a surface they tend to ball up into tiny...

2012-03-19 05:12:26

Berkeley Lab scientists and their colleagues have discovered an unsuspected way that protons can move among molecules -- revealing new opportunities for research in biology, environmental science, and green chemistry When a proton — the bare nucleus of a hydrogen atom — transfers from one molecule to another, or moves within a molecule, the result is a hydrogen bond, in which the proton and another atom like nitrogen or oxygen share electrons. Conventional wisdom has it that...

2012-03-16 09:37:52

A team of international researchers have fired ultra-fast shots of light at oxygen, nitrogen and carbon monoxide molecules as part of a development aimed at mapping the astonishingly quick movements of atoms within molecules, as well as the charges that surround them. The ultra-short laser that spans only a few hundred attoseconds — an attosecond is equivalent to one quintillionth of a second — was fired in a sample of molecules and could pave the way towards imaging the...

2012-03-14 20:39:01

Researchers from Stanford University and the U.S. Department of Energy's SLAC National Accelerator Laboratory have created the first-ever system of "designer electrons" — exotic variants of ordinary electrons with tunable properties that may ultimately lead to new types of materials and devices. "The behavior of electrons in materials is at the heart of essentially all of today's technologies," said Hari Manoharan, associate professor of physics at Stanford and a member of SLAC's...

2012-02-20 11:46:05

AAAS presentation: Charles Clark Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something new appears. This is especially true of atomtronics, a relatively new science devoted to creating artificial tailored materials consisting of neutral atoms held in an array with laser beams, or atoms moving along a desired track under electric or...

2011-11-30 15:08:57

Rice researchers' two-step technique makes graphene suitable for organic chemistry The future brightened for organic chemistry when researchers at Rice University found a highly controllable way to attach organic molecules to pristine graphene, making the miracle material suitable for a range of new applications. The Rice lab of chemist James Tour, building upon a set of previous finds in the manipulation of graphene, discovered a two-step method that turned what was a single-atom-thick...

2011-10-04 12:25:54

Researchers at Oregon State University have created a new, unifying method to describe a basic chemical concept called “electronegativity,” first described almost 80 years ago by OSU alumnus Linus Pauling and part of the work that led to his receiving the Nobel Prize. The new system offers simplicity of understanding that should rewrite high school and college chemistry textbooks around the world, even as it opens important new avenues in materials and chemical research, with...

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2011-08-15 06:47:49

Material designed for energy applications is 10 times faster than natural enzyme, uses inexpensive metals Looking to nature for their muse, researchers have used a common protein to guide the design of a material that can make energy-storing hydrogen gas. The synthetic material works 10 times faster than the original protein found in water-dwelling microbes, the researchers report in the August 12 issue of the journal Science, clocking in at 100,000 molecules of hydrogen gas every second....

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...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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