News tagged with atomic force
Spotted under the microscope: How a virus puts on its armor
Scientists from VU University Amsterdam, Scripps Research Institute and the University of Michigan discovered how a virus 'puts on its armor'. This 'armor', consisting of mere proteins, is initially flexible ...
Jan 31, 2012 |
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Oxygen molecule survives to enormously high pressures
Using computer simulations, a Ruhr-University Bochum (Germany) researcher has shown that the oxygen molecule (O2) is stable up to pressures of 1.9 terapascal, which is about nineteen million times higher than atmosphere pressure. ...
Jan 30, 2012 |
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DNA as invisible ink can reversibly hide patterns
(PhysOrg.com) -- While most people know of DNA as the building blocks of life, these large molecules also have potential applications in areas such as biosensing, nanoparticle assembly, and building supramolecular ...
Nanotechnology / Bio & Medicine
Jan 23, 2012 |
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Magnetic actuation enables nanoscale thermal analysis
Polymer nano-films and nano-composites are used in a wide variety of applications from food packaging to sports equipment to automotive and aerospace applications. Thermal analysis is routinely used to analyze ...
Jan 12, 2012 |
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Mock atoms prove attractive: Researchers added first pseudo atoms to electronegativity scale
(PhysOrg.com) -- When studying an atom's ability to attract nearby electrons, scientists rely on electronegativity scales, which describe each atom's ability to pull in these negatively charged particles. ...
Jan 06, 2012 |
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Researchers measure nanometer scale temperature
Illinois researchers have developed a new kind of electro-thermal nanoprobe that can independently control voltage and temperature at a nanometer-scale point contact. It can also measure the temperature-dependent ...
Dec 19, 2011 |
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New generation GPS satellite starts tests in Colo.
A $5.5 billion upgrade to the Global Positioning System moved a step closer to launch this week when a prototype arrived at a Lockheed Martin complex in Colorado to begin months of tests.
Dec 13, 2011 |
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New medical, research tool possible by probing cell mechanics
(PhysOrg.com) -- Researchers are making progress in developing a system that measures the mechanical properties of living cells, a technology that could be used to diagnose human disease and better understand ...
Nanotechnology / Bio & Medicine
Nov 21, 2011 |
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Researchers ink nanostructures with tiny 'soldering iron'
Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) have shed light on the role of temperature in controlling a fabrication technique for drawing chemical patterns as small as 20 nanometers. ...
Nov 07, 2011 |
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Study measures key property of potential 'spintronic' material
An advanced material that could help bring about next-generation "spintronic" computers has revealed one of its fundamental secrets to a team of scientists from Argonne National Laboratory (ANL) and the National ...
Oct 19, 2011 |
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Eye on ionization: Visualizing and controlling bound electron dynamics in strong laser fields
(PhysOrg.com) -- Subatomic events can be remarkably counterintuitive. Such is the case in theoretical physics when, under certain specific conditions, atoms exposed to intense infrared laser pulses remain ...
Oct 19, 2011 |
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Biochemists identify how tissue cells detect and perfect
Scientists have discovered how cells detect tissue damage and modify their repair properties accordingly. The findings, published today [6 October] in the journal Developmental Cell, could open up new opportunities for im ...
Oct 06, 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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Submerged atomic resolution imaging of calcium carbonate crystal surface
Hard tissues of organisms, such as bones and shells, are composed of inorganic minerals (biominerals). While these substances are created by biomineralization, which will be discussed later, many uncertainties ...
Sep 05, 2011 |
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Researchers observe nanoscale charge transport in bulk heterojunction solar cells
(PhysOrg.com) -- Researchers in the CNST have used photoconductive atomic force microscopy (PCAFM) to characterize the nanoscale structure of organic photovoltaic (OPV) materials, and have performed a careful assessment of ...
Aug 11, 2011 |
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