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News tagged with reactivity

New interferometer could simplify materials research

(PhysOrg.com) -- “Most current hard x-ray interferometers are based on crystals, which require their high quality and high mechanical stability,” Anatoly Snigirev tells PhysOrg.com. “This can make x-ray interferometry quite ...

Physics / Optics & Photonics

created Aug 13, 2009 | popularity 5 / 5 (13) | comments 1 feature

New driving force for chemical reactions discovered

New research just published in the journal Science by a team of chemists at the University of Georgia and colleagues in Germany shows for the first time that a mechanism called tunneling control may drive chemical reacti ...

Chemistry / Analytical Chemistry

created Jun 09, 2011 | popularity 4.8 / 5 (15) | comments 1 | with audio podcast

Hybrid 'Janus' nanoparticles made from gold and titania have high catalytic activity and extraordinary durability

As recently as twenty-five years ago, chemists considered gold to be one of the most inert metallic elements, until the discovery that nanoscale-sized dispersions of gold had high catalytic activity forced ...

Nanotechnology / Nanomaterials

created May 10, 2012 | popularity 5 / 5 (4) | comments 0

Scientists reveal how females store sperm for decades

(PhysOrg.com) -- Scientists have discovered that all sorts of females – from birds to reptiles to insects – have a nifty trick to prolong the lifespan of sperm, letting them store it for weeks, months ...

Biology / Plants & Animals

created Jan 26, 2012 | popularity 4.4 / 5 (7) | comments 3 | with audio podcast

Thermochemical nanolithography now allows multiple chemicals on a chip

(PhysOrg.com) -- Scientists at Georgia Tech have developed a nanolithographic technique that can produce high-resolution patterns of at least three different chemicals on a single chip at writing speeds of ...

Nanotechnology / Nanophysics

created Dec 16, 2009 | popularity 4.5 / 5 (4) | comments 0

Study shows adding UV light helps form 'Missing G' of RNA building blocks

For scientists attempting to understand how the building blocks of RNA originated on Earth, guanine -- the G in the four-letter code of life -- has proven to be a particular challenge. While the other three ...

Chemistry / Biochemistry

created Jun 14, 2010 | popularity 5 / 5 (10) | comments 3 | with audio podcast

Replacing hydrogen in fluorescent dyes improves detection ability, stability and shelf life

By swapping out one specific hydrogen atom for an isotope twice as heavy, researchers have increased the shelf life and detection ability of fluorescent probes that are essential to studying a variety of inflammatory ...

Chemistry / Materials Science

created Jul 20, 2010 | popularity 5 / 5 (4) | comments 1 | with audio podcast

Scientists pioneer new method for nanoribbon production

Research involving scientists from The University of Nottingham is pioneering a new method of studying and making molecules.

Nanotechnology / Nanomaterials

created Aug 09, 2011 | popularity 5 / 5 (2) | comments 1 | with audio podcast

No extraordinary effects from microwave and mobile phone heating

The effect of microwave heating and cell phone radiation on sample material is no different than a temperature increase, according to scientists from the Department of Chemistry and Biochemistry, Arizona State University, ...

Physics / General Physics

created Nov 15, 2011 | popularity 3 / 5 (2) | comments 14 | with audio podcast

Engineering team invents lab-on-a-chip for fast, inexpensive blood tests

While most blood tests require shipping a vial of blood to a laboratory for analysis and waiting several days for the results, a new device invented by a team of engineers and students at the University of Rhode Island uses ...

Chemistry / Analytical Chemistry

created Jan 10, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Scientists make hydrocarbon breakthrough using gold catalyst

Researchers from Cardiff University are opening up a new way of using hydrocarbon feedstocks to make a range of valuable products.

Chemistry / Materials Science

created Jan 13, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Putting the squeeze on rare earth metals

(PhysOrg.com) -- Rare-earth metals are a series of elements that represent one of the final frontiers of chemical exploration. The vigorous reactivity of these substances, however, has made it difficult for ...

Chemistry / Materials Science

created Apr 15, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Thioketal nanoparticles: Researchers develop oral delivery system to treat inflammatory bowel diseases

(PhysOrg.com) -- Researchers at the Georgia Institute of Technology and Emory University have developed a novel approach for delivering small bits of genetic material into the body to improve the treatment ...

Nanotechnology / Bio & Medicine

created Oct 10, 2010 | popularity 5 / 5 (6) | comments 0 | with audio podcast

Fuel cells get up to speed with a new kind of platinum

A new form of platinum that could be used to make cheaper, more efficient fuel cells has been created by researchers at the Department of Energy's SLAC National Accelerator Laboratory and the University of ...

Chemistry / Materials Science

created Apr 26, 2010 | popularity 4.9 / 5 (13) | comments 0 | with audio podcast

Cu-BTC proves redox capable, opens new doors for catalysis and gas storage

What holds the surface area of several football fields in the mass equivalent of a paper clip? The answer to this question has many names and performs duties ranging from catalysis to gas storage: the metal ...

Chemistry / Materials Science

created Apr 25, 2012 | popularity not rated yet | comments 0