News tagged with atomic force
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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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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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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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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Researchers turn photons into work using DNA
(PhysOrg.com) -- By using light to change the elasticity of a DNA molecule, scientists have designed a molecular motor that can turn light into mechanical work. Unlike most previously reported molecular motors, ...
Mar 10, 2011 |
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Nanostructure of 5,000-year-old mummy skin reveals insight into mummification process
(PhysOrg.com) -- Using cutting-edge microscopy techniques, researchers have gained insight into how human mummies can be extremely well-preserved for thousands of years. A team of scientists from Germany and ...
Nanotechnology / Bio & Medicine
Apr 20, 2010 |
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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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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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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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Getting to know the strong force, one of the four fundamental forces of the universe
(PhysOrg.com) -- In new work, high-energy physicists have observed two long-sought quantum states in the bottomonium family of sub-atomic particles. The result will help researchers better understand one of ...
Mar 31, 2011 |
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Physicists take new look at the atom
(PhysOrg.com) -- University of Arizona physicists have discovered a new way to measure how single atoms interact with a surface. Their findings help develop nanotechnology and test new theories about the internal ...
Jan 17, 2011 |
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Heated AFM tip allows direct fabrication of ferroelectric nanostructures on plastic
Using a technique known as thermochemical nanolithography (TCNL), researchers have developed a new way to fabricate nanometer-scale ferroelectric structures directly on flexible plastic substrates that would ...
Jul 18, 2011 |
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Scientists Image the 'Anatomy' of a Molecule (w/ Video)
(PhysOrg.com) -- For the first time, IBM researchers in Zurich, Switzerland, have taken a 3D image of an individual molecule. Using an atomic force microscope, the researchers constructed a "force map" of ...
Aug 28, 2009 |
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Gravity-like theories give insight into the strong force
A new computation of the constant that describes the strength of the force between the quarks in a proton may help theorists tackle one of the most challenging problems of physics: analytically solving the theory of QCD and ...
Jun 07, 2010 |
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Nanotechnologists form near-frictionless diamond material
Researchers at the University of Pennsylvania, the University of Wisconsin-Madison and IBM Research-Zürich have fabricated an ultra sharp, diamond-like carbon tip possessing such high strength that it is 3,000 ...
Nanotechnology / Nanomaterials
Feb 25, 2010 |
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