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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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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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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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 |
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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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Building crystalline materials from nanoparticles and DNA
Nature is a master builder. Using a bottom-up approach, nature takes tiny atoms and, through chemical bonding, makes crystalline materials, like diamonds, silicon and even table salt. In all of them, the properties of the ...
Nanotechnology / Nanomaterials
Oct 13, 2011 |
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Advanced electron microscope sheds light on metal embrittlement
Why does a solid metal that is engineered for ductility become brittle, often suddenly and with dramatic consequences, in the presence of certain liquid metal impurities?
Sep 22, 2011 |
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Forces within molecules can strengthen extra-long carbon-carbon bonds
(PhysOrg.com) -- The strength of a chemical bond between atoms is the fundamental basis for a molecule’s stability and reactivity. Tuning the strength and accessibility of the bond can dramatically change ...
Sep 16, 2011 |
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Novel alloy could produce hydrogen fuel from sunlight
Scientists from the University of Kentucky and the University of Louisville have determined that an inexpensive semiconductor material can be "tweaked" to generate hydrogen from water using sunlight.
Aug 30, 2011 |
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Inexpensive catalyst that makes hydrogen gas 10 times faster than natural enzyme
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 ...
Aug 11, 2011 |
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Chemists devise better way to prepare workhorse molecules
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 ...
Jun 09, 2011 |
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Turning plants into power houses
(PhysOrg.com) -- "I have a slide that has a photo of a cornfield and a big photovoltaic array," says Robert Blankenship, a scientist who studies photosynthesis at Washington University in St. Louis. "When ...
May 12, 2011 |
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Giant virus, tiny protein crystals show X-ray laser's power and potential
Two studies published in the February 3 issue of Nature demonstrate how the unique capabilities of the world's first hard X-ray free-electron laser -- the Linac Coherent Light Source, located at the Depart ...
Feb 02, 2011 |
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Universal solvent no match for new self-healing sticky gel
Scientists can now manufacture a synthetic version of the self-healing sticky substance that mussels use to anchor themselves to rocks in pounding ocean surf and surging tidal basins. A patent is pending on ...
Jan 27, 2011 |
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'Necropanspermia' suggested as a way of seeding life on Earth
(PhysOrg.com) -- Panspermia is a mechanism for spreading organic material throughout the galaxy, but the destructive effects of cosmic rays and ultraviolet light tend to mean most organisms would be destroyed ...
Space & Earth / Space Exploration
Nov 12, 2010 |
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