News tagged with bond

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Scientists identify quantum differences between light and heavy water

Scientists identify quantum differences between light and heavy water

Physics / General Physics

created Aug 26, 2008 | popularity 4.4 / 5 (55) | comments 16 feature

Scientists know that light water (H2O) and heavy water (D2O) have similar but not identical structures. Using quantum mechanics, researchers have recently identified several differences between the two water ...


Making a point: Picoscale stability in a room-temperature AFM

Making a Point: Picoscale Stability in a Room-Temperature AFM

Nanotechnology / Nanophysics

created Mar 25, 2009 | popularity 4.9 / 5 (28) | comments 1

(PhysOrg.com) -- Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount ...


New way to break some of the strongest chemical bonds

New way to break some of the strongest chemical bonds

Chemistry / Materials Science

created Dec 16, 2009 | popularity 4.6 / 5 (24) | comments 0 weblog

(PhysOrg.com) -- Scientists at Cornell University in the U.S. have found a new way of breaking two of the strongest chemical bonds, at ambient temperature and pressure, and this breakthrough could lead to ...


'Impossible' Molecular Chain Reaction on Metal is Demonstrated

Chemistry /

created Dec 12, 2008 | popularity 4.2 / 5 (21) | comments 2

People said it couldn't be done, but researchers from the University of Pittsburgh and the U.S. Department of Energy National Energy Technology Laboratory (NETL) in Pittsburgh demonstrated a molecular chain reaction on a ...


Johannes Rydberg

Scientists Make First Observation of Unique Rydberg Molecule

Physics / General Physics

created Apr 28, 2009 | popularity 5 / 5 (12) | comments 0 weblog

(PhysOrg.com) -- When Enrico Fermi investigated the Rydberg atom in the '30s, he never imagined that the giant atoms could form molecules. Later, in the '70s and '80s, theoretical physicist Chris Greene predicted ...


Breaking harmful bonds

Chemistry /

created Aug 28, 2008 | popularity 4 / 5 (13) | comments 0

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 ...


Researcher studies the universe through quantum electrodynamics

Physics / Quantum Physics

created Dec 17, 2009 | popularity 3.6 / 5 (9) | comments 0

(PhysOrg.com) -- Fundamental constants, such as the standards for length and mass, are a given in our society. However, research has shown that these constants might be changing slightly with the expansion of the universe.


Vibrations key to efficiency of green fluorescent protein

Vibrations key to efficiency of green fluorescent protein

Chemistry / Biochemistry

created Nov 11, 2009 | popularity 4.5 / 5 (6) | comments 1

University of California, Berkeley, chemists have discovered the secret to the success of a jellyfish protein whose green glow has made it the darling of biologists and the subject of the 2008 Nobel Prize ...


Explained: RNA interference

Explained: RNA interference

Biology / Cell & Microbiology

created Nov 12, 2009 | popularity 4.8 / 5 (5) | comments 0

Every high school biology student learns the basics of how genes are expressed: DNA, the cell’s master information keeper, is copied into messenger RNA, which carries protein-building instructions to the ribosome, ...


Just like old times: Generating RNA molecules in water

Chemistry / Biochemistry

created Nov 20, 2009 | popularity 4 / 5 (3) | comments 0

A key question in the origin of biological molecules like RNA and DNA is how they first came together billions of years ago from simple precursors. Now, in a study appearing in this week's Journal of Biological Chemistry, resear ...


Fingerprint analysis technique could be used to identify bombmakers

Chemistry /

created Aug 26, 2008 | popularity 4 / 5 (3) | comments 0

University of Leicester experts have held discussions with military personnel in Afghanistan following the discovery of new technology to identify fingerprints on metal.


Alpha-Helical protein filaments

Simplicity is crucial to design optimization at nanoscale

Nanotechnology / Bio & Medicine

created Feb 04, 2009 | popularity 5 / 5 (2) | comments 0

MIT researchers who study the structure of protein-based materials with the aim of learning the key to their lightweight and robust strength have discovered that the particular arrangement of proteins that ...


Researchers Find Fingerprints in Murder Case

Other Sciences / Other

created Dec 08, 2008 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- A pioneering forensic scientist at Northamptonshire Police and the University of Leicester has helped detectives move a step closer to solving a murder case.


Researchers describe 'implausible' chemistry that produces herbicidal compound

Biology / Cell & Microbiology

created Jun 10, 2009 | popularity 5 / 5 (2) | comments 0

A soil microbe that uses chemical warfare to fight off competitors employs an unusual chemical pathway in the manufacture of its arsenal, researchers report, making use of an enzyme that can do what no other enzyme is known ...


Unlike rubber bands, molecular bonds may not break faster when pulled

Chemistry / Materials Science

created Jun 17, 2009 | popularity 5 / 5 (1) | comments 0

From balloons to rubber bands, things always break faster when stretched. Or do they? University of Illinois scientists studying chemical bonds now have shown this isn't always the case, and their results may have profound ...