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News tagged with bond

Muscular protein bond -- strongest yet found in nature

A research collaboration between Munich-based biophysicists and a structural biologist in Hamburg (Germany) is helping to explain why our muscles, and those of other animals, don't simply fall apart under stress. Their findings ...

Biology / Cell & Microbiology

created Jul 20, 2009 | popularity not rated yet | comments 0

Professor sheds light on DNA mechanisms

By manipulating individual atoms in DNA and forming unique molecules, a Georgia State University researcher hopes to open new avenues in research towards better understanding the mechanisms of DNA replication and transcription, ...

Chemistry / Biochemistry

created Jul 17, 2009 | popularity 4.5 / 5 (2) | comments 0

Why Does Water Expand When it Cools? A New Explanation

(PhysOrg.com) -- Most of us, when we take our first science classes, learn that when things cool down, they shrink. (When they heat up, we learn, they usually expand.) However, water seems to be the exception ...

Physics / Condensed Matter

created Jul 17, 2009 | popularity 4.2 / 5 (39) | comments 16 feature

Scientists track chemical changes in cells as they endure extreme conditions

One of nature's most gripping feats of survival is now better understood. For the first time, scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory observed the chemical changes in individual ...

Chemistry / Biochemistry

created Jul 07, 2009 | popularity 4.5 / 5 (2) | comments 1

Atomic force microscope research could lead to better health care

Where biology, chemistry and physics intersect, a Kansas State University professor expects to find applications to improve human health.

Nanotechnology / Nanophysics

created Jul 06, 2009 | popularity 5 / 5 (1) | comments 0

Tiny capsules can deliver drugs to targeted cells

(PhysOrg.com) -- It is now possible to engineer tiny containers the size of a virus to deliver drugs and other materials with almost 100 percent efficiency to targeted cells in the bloodstream.

Nanotechnology / Bio & Medicine

created Jun 25, 2009 | popularity 3.7 / 5 (3) | comments 0

Scientists Observe Liquid Water Below Freezing

(PhysOrg.com) -- Below 0 °C, water turns to ice. But beyond that, or below about -75 °C, the ice may turn back into liquid water. While scientists have previously predicted this phase transition with computer ...

Chemistry / Materials Science

created Jun 24, 2009 | popularity 4.3 / 5 (15) | comments 8 weblog

Potential new drugs: 970 million and still counting

Like astronomers counting stars in the familiar universe of outer space, chemists in Switzerland are reporting the latest results of a survey of chemical space -- the so-called chemical universe where tomorrow’s ...

Chemistry / Analytical Chemistry

created Jun 24, 2009 | popularity 3.7 / 5 (3) | comments 2

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

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 ...

Chemistry / Materials Science

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

Researchers describe 'implausible' chemistry that produces herbicidal compound

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 ...

Biology / Cell & Microbiology

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

Scientists Make First Observation of Unique Rydberg Molecule

(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 ...

Physics / General Physics

created Apr 28, 2009 | popularity 5 / 5 (13) | comments 0 weblog

Discovery of an Unexpected Boost for Solar Water-Splitting Cells

(PhysOrg.com) -- A research team from Northeastern University and the National Institute of Standards and Technology has discovered, serendipitously, that a residue of a process used to build arrays of titania ...

Nanotechnology / Nanomaterials

created Apr 22, 2009 | popularity 5 / 5 (22) | comments 1

Sexual harassment from males prevents female bonding, says study

(PhysOrg.com) -- The extent to which sexual harassment from males can damage relationships between females is revealed in a new study. Led by the Centre for Research in Animal Behaviour at the University of ...

Biology / Plants & Animals

created Apr 22, 2009 | popularity not rated yet | comments 0

Breaking the ties that bind: New hope for biomass fuels

(PhysOrg.com) -- Los Alamos National Laboratory researchers have discovered a potential chink in the armor of fibers that make the cell walls of certain inedible plant materials so tough. The insight ultimately ...

Biology / Cell & Microbiology

created Apr 22, 2009 | popularity 4.3 / 5 (7) | comments 0

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

(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 ...

Nanotechnology / Nanophysics

created Mar 25, 2009 | popularity 4.9 / 5 (40) | comments 1