News tagged with atomic force
Scientists evaluate different antimicrobial metals for use in water filters
Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown ...
Nanotechnology / Bio & Medicine
May 24, 2012 |
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Synthetic scent hounds: Nanostructured sensor for detection of very low concentrations of explosive
To prevent terrorist attacks at airports, it would be helpful to detect extremely low concentrations of explosives easily and reliably. Despite the development of various sensor technologies, dogs continue ...
May 18, 2012 |
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'Iceman Oetzi' lived for a while after arrow wound
Oetzi, the 5,300-year-old "Iceman" mummy of the Alps, lived for some time after being shot in the back by an arrow, scientists said on Tuesday after using forensic technology to analyse his preserved blood.
Other Sciences / Archaeology & Fossils
May 02, 2012 |
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Researchers validate simplified lateral force calibration technique for atomic force microscopy
(PhysOrg.com) -- Researchers from the NIST Center for Nanoscale Science and Technology and the NIST Material Measurement Laboratory have demonstrated that a simpler technique for calibrating lateral sensitivity ...
Mar 29, 2012 |
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Researchers create molecular Braille to identify DNA molecules
Researchers at UCLA and New York University have developed a method to detect sequence differences in individual DNA molecules by taking nanoscopic pictures of the molecules themselves.
Nanotechnology / Bio & Medicine
Mar 28, 2012 |
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Diamonds are a probe’s best friend
Surface imperfections in devices such as gears or levers can have disastrous effects on reliability. Recent studies have demonstrated the usefulness of atomic force microscopes (AFMs) — instruments that use tiny silicon-based ...
Mar 01, 2012 |
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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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