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 ...

Biology / Cell & Microbiology

created Jan 31, 2012 | popularity not rated yet | comments 0

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. ...

Physics / Condensed Matter

created Jan 30, 2012 | popularity 5 / 5 (4) | comments 1

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

created Jan 23, 2012 | popularity 4.3 / 5 (8) | comments 0 | with audio podcast feature

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 ...

Nanotechnology / Nanophysics

created Jan 12, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

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. ...

Chemistry / Materials Science

created Jan 06, 2012 | popularity 4 / 5 (9) | comments 1 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Dec 19, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

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.

Technology / Telecom

created Dec 13, 2011 | popularity 3 / 5 (1) | comments 0

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

created Nov 21, 2011 | popularity 5 / 5 (1) | comments 1 | with audio podcast

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. ...

Nanotechnology / Nanophysics

created Nov 07, 2011 | popularity 4.8 / 5 (4) | comments 0 | with audio podcast

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 ...

Physics / Condensed Matter

created Oct 19, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

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 ...

Physics / General Physics

created Oct 19, 2011 | popularity 5 / 5 (5) | comments 3 | with audio podcast feature

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 ...

Chemistry / Biochemistry

created Oct 06, 2011 | popularity not rated yet | comments 2 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Sep 16, 2011 | popularity 5 / 5 (4) | comments 1 | with audio podcast

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 ...

Nanotechnology / Nanophysics

created Sep 05, 2011 | popularity 5 / 5 (1) | comments 0

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 ...

Nanotechnology / Nanophysics

created Aug 11, 2011 | popularity 5 / 5 (1) | comments 0