News tagged with chemical bonds
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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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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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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Overcoming cancer drug resistance with nanoparticles
One of the ways in which cancer cells evade anticancer therapy is by producing a protein that pumps drugs out of the cell before these compounds can exert their cell-killing effects. A research team at Northwestern University ...
Nanotechnology / Bio & Medicine
Jan 20, 2012 |
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Comparing energy conversion of plants and solar cells
Scientists now have a way to more accurately compare how efficiently plants and photovoltaic, or solar, cells convert sunlight into energy, thanks to findings by a research consortium that included a U.S. ...
Technology / Energy & Green Tech
Jan 16, 2012 |
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New chemical reaction holds promise for drug development
A team of researchers at the California Institute of Technology (Caltech) has devised a new method for making complex molecules. The reaction they have come up with should enable chemists to synthesize new ...
Jan 12, 2012 |
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Chemists find new way to break amide bonds
(PhysOrg.com) -- Researchers in the University of Bristol's School of Chemistry have found a way to accelerate the breakdown of amide bonds.
Dec 16, 2011 |
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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 ...
Nanotechnology / Nanomaterials
Nov 29, 2011 |
4.8 / 5 (8) |
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New strategy could lead to dose reduction in X-ray imaging
For more than a century, the use of X-rays has been a prime diagnostic tool when it comes to human health. As it turns out, X-rays also are a crucial component for studying and understanding molecules, and a new approach ...
Nov 22, 2011 |
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Bow down to the light: Light-triggered microscale robotic arm makes bending and stretching motions
(PhysOrg.com) -- As miniaturization progresses, microrobots and nanomachines have moved beyond the realm of pure speculation. This technology requires tiny components that can respond to stimulation by undergoing ...
Nov 21, 2011 |
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Scientists carve nanowires out of ultrananocrystalline diamond thin films
A team of scientists working at Argonne National Laboratory's (ANL) Center for Nanoscale Materials has successfully carved ultrananocrystalline diamond (UNCD) thin films into nanowires, boosting the material's functionality ...
Nov 04, 2011 |
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Highly selective catalyst developed for ring-closing olefin metathesis
Research carried out at Boston College, in collaboration with scientists at MIT and the University of Oxford, has led to the development of an efficient and highly selective catalyst for ring-closing olefin metathesis, one ...
Nov 02, 2011 |
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