Molecular Bonds Current Events | Molecular Bonds News
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Beyond the bonds that bind: UCSB researchers discover hydrogen can form multicenter bonds
Researchers at the University of California, Santa Barbara have shown that, under the right circumstances, hydrogen can form multicenter bonds, where one hydrogen atom simultaneously bonds to as many as four or six other atoms. view more (2006-12-04)
DNA-Proofed Documents To Arrive 'By 2006'
The commercial launch of the first ever fool-proof document security system is planned for 2006, reports Marina Murphy in Chemistry & Industry magazine. The system, which uses DNA fingerprinting, will allow documents to be authenticated with an accuracy of billions to one against duplication, according to the Australian scientists working on... view more... (2004-06-17)
The short-term memory of water
Researchers of the Max-Born-Institute and the University of Toronto find extremely fast fluctuations in liquid water - Publication in Nature. view more (2005-03-07)
Solvents in Retreat
A new catalyst for selective solvent-free hydrogenation at low temperatures A number of cyclic hydrocarbons with multiple double bonds are readily accessible intermediates in chemical industry. In the course of further processing it is often necessary to saturate some of the double bonds with hydrogen to form single bonds. This type of reaction,... view more... (2001-03-27)
Genomics reveals mechanism of heat resistance in bacteria
Warm-blooded creatures maintain a relatively stable body temperature that cannot tolerate the stress of intense heat (or cold). view more (2005-08-23)
Unlike rubber bands, molecular bonds may not break faster when pulled
From balloons to rubber bands, things always break faster when stretched. view more (2009-06-18)
The inside dope
Often, things can be improved by a little 'contamination.' Steel, for example is iron with a bit of carbon mixed in. To produce materials for modern electronics, small amounts of impurities are introduced into silicon - a process called doping. view more (2007-07-27)
Sexual harassment from males prevents female bonding, says study
The extent to which sexual harassment from males can damage relationships between females is revealed in a study published today. view more (2009-04-22)
Warm water vibrates for longer
Dutch researcher Arjan Lock has investigated the behaviour of vibrating water molecules. Using ultra-short laser pulses, he found that hydrogen atoms in water molecules vibrate for longer at higher temperatures. This is abnormal because in the majority of substances a vibration lives shorter at higher temperatures. Lock studied the OH-stretch... view more... (2004-02-05)
Tiny protein provokes healthy bonding between cells
In human relationships, a certain "spark" often governs whether we prefer one person to another, and critical first impressions can occur within seconds. A team lead by Johns Hopkins researchers has found that cell-to-cell "friendships" operate in much the same way and that dysfunctional bonding is linked to the spread of... view more... (2008-11-26)
Making alternative fuel becomes more efficient with dual-catalyst system: UNC-Rutgers study
As the United States' oil reserves dwindle, some say the nation will have to rely on synthetic petroleum fuel made from its large stores of coal. view more (2006-04-14)
Breaking harmful bonds
Everybody loves the way breakfast eggs conveniently slide off of Teflon without leaving any pesky pieces of egg in the pan. Indeed, the carbon-fluorine bond at the heart of Teflon cookware is so helpful we also use it in clothing, lubricants, refrigerants, anesthetics, semiconductors, and even blood substitutes. view more (2008-08-29)
Strange molecule in the sky cleans acid rain, scientists discover
Researchers have discovered an unusual molecule that is essential to the atmosphere's ability to break down pollutants, especially the compounds that cause acid rain. view more (2008-08-13)
Water is 'designer fluid' that helps proteins change shape, scientists say
Ubiquitous on Earth, water also has been found in comets, on Mars and in molecular clouds in interstellar space. Now, scientists say this common fluid is not as well understood as we thought. view more (2008-08-07)
What happens when ice melts?
How molecules are linked together to form liquid water is the subject of a groundbreaking study due to appear Thursday, Apr. 1 in Science magazine's advance publication web site Science Express. The investigation entitled The Structure of the First Coordination Shell in Liquid Water summarizes the results of an international collaboration headed... view more... (2004-04-02)
Discoveries should aid research into cause of ALS
Two teams of researchers at Northwestern University have found a novel pathological hallmark of the neurodegenerative disease amyotrophic lateral sclerosis (ALS) at the molecular level. view more (2006-04-26)
Radicals Shake Up Molecules in a Tug o' War
Until now, it was commonly thought that colliding molecules get the shakes as the result of energy transfer solely from the smashing of the molecules, but some new research adds a second means by which colliding molecules become vibrationally excited--it is being called the "Tug o' War Mechanism." view more (2008-07-07)
Candy-coating keeps proteins sweet
Sugar-frosting isn't just for livening up boring bran flakes; it can also preserve important therapeutic proteins. Researchers at the National Institute of Standards and Technology (NIST) have developed a fast, inexpensive and effective method for evaluating the sugars pharmaceutical companies use to stabilize protein-drugs for storage at room... view more... (2008-08-20)
Researchers shed more light on conversion of water to hydrogen gas
Chemists are several steps closer to teasing hydrogen fuel from water using man-made molecular devices that collect electrons and use them to split hydrogen from oxygen. view more (2005-08-29)
A sweet step toward new cancer therapies
By recognizing sugars, a technique developed by University of Michigan analytical chemist Kristina Hakansson sets the stage for new cancer diagnosis and treatment options. view more (2007-04-02)
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