News tagged with bond
Efficient preparation of a set of potential glycosidase inhibitors
(Phys.org) -- In many biological and pathological processes, glycosidase enzymes attack glycosidic bonds in carbohydrates, glycoproteins, and glycolipids. The ability to modify or block these processes by ...
9 hours ago |
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Chemists explain the molecular workings of promising fuel cell electrolyte
Researchers from New York University and the Max Planck Institute in Stuttgart reveal how protons move in phosphoric acid in a Nature Chemistry study that sheds new light on the workings of a promising fuel cell electrolyte.
Apr 22, 2012 |
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Probing hydrogen under extreme conditions
(Phys.org) -- How hydrogen--the most abundant element in the cosmos--responds to extremes of pressure and temperature is one of the major challenges in modern physical science. Moreover, knowledge gleaned ...
Apr 13, 2012 |
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Double chemical action yields double success
Molecules containing silicon double bonds, or disilenes, can be nearly twice as responsive to light as double-bonded hydrocarbons—a feature that makes them irresistible to researchers developing novel ...
Mar 16, 2012 |
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How nitric acid overcame its fear of water with a little help from its friends
Whether it is a pond or raindrop, when a common nitrogen-containing acid encounters water's surface, it typically falls apart, dissociating into two charged particles. Except, sometimes it is able to hold ...
Mar 14, 2012 |
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NMR sheds new light on polymorphic forms in pharmaceutical compounds
Scientists at the University of Warwick have used state-of-the-art nuclear magnetic resonance (NMR) techniques to shed new light on how pharmaceutical molecules pack together in the solid state.
Chemistry / Analytical Chemistry
Mar 07, 2012 |
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Computer simulations suggest graphynes may be even more useful than graphene
(PhysOrg.com) -- The past several years have seen a virtual explosion in the amount of research dedicated to graphene and as a result there has been a nearly constant stream of news pertaining to new discoveries ...
Nanotechnology / Nanomaterials
Mar 05, 2012 |
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Squeezing polymers produces chemical energy but raises doubts about implant safety
A polymer is a mesh of chains, which slowly break over time due to the pressure from ordinary wear and tear. When a polymer is squeezed, the pressure breaks chemical bonds and produces free radicals: ions with unpaired electrons, ...
Mar 02, 2012 |
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Solved: The mystery of the nanoscale crop circles
(PhysOrg.com) -- Almost three years ago a team of scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) was performing an experiment in which layers of gold mere ...
Mar 02, 2012 |
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Female bonobos use homosexual sex to increase social status
(PhysOrg.com) -- Female bonobos (Pan paniscus) often form strong bonds with other females, and these bonds affect their position in the social hierarchy. Scientists from St Andrews University in the UK loo ...
Mar 02, 2012 |
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Scientists image the charge distribution within a single molecule for the first time
(PhysOrg.com) -- IBM scientists were able to measure for the first time how charge is distributed within a single molecule. This achievement will enable fundamental scientific insights into single-molecule ...
Feb 27, 2012 |
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New metal catalyst drives hydrogen fuel reaction forwards and backwards
(PhysOrg.com) -- When it comes to driving hydrogen production, a new catalyst built at Pacific Northwest National Laboratory can do what was previously shown to happen only in nature: store energy in hydrogen and release ...
Feb 16, 2012 |
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WSU chemist applies Google software to webs of the molecular world
The technology that Google uses to analyze trillions of Web pages is being brought to bear on the way molecules are shaped and organized.
Feb 13, 2012 |
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Amazon fungi found that eat polyurethane, even without oxygen
(PhysOrg.com) -- Until now polyurethane has been considered non-biodegradable, but a group of students from Yale University in the US has found fungi that will not only eat and digest it, they will do so even in the absence ...
Feb 03, 2012 |
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Oxygen molecule survives to enormously high pressures
Using computer simulations, a Ruhr-University Bochum (Germany) researcher has shown that the oxygen molecule (O2) is stable up to pressures of 1.9 terapascal, which is about nineteen million times higher than atmosphere pressure. ...
Jan 30, 2012 |
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