Atomic force microscope
hideThe atomic force microscope (AFM) or scanning force microscope (SFM) is a very high-resolution type of scanning probe microscopy, with demonstrated resolution of fractions of a nanometer, more than 1000 times better than the optical diffraction limit. The precursor to the AFM, the scanning tunneling microscope, was developed by Gerd Binnig and Heinrich Rohrer in the early 1980s, a development that earned them the Nobel Prize for Physics in 1986. Binnig, Quate and Gerber invented the first AFM in 1986. The AFM is one of the foremost tools for imaging, measuring and manipulating matter at the nanoscale. The information is gathered by "feeling" the surface with a mechanical probe. Piezoelectric elements that facilitate tiny but accurate and precise movements on (electronic) command enable the very precise scanning.
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News tagged with atomic force microscope
Nanoscale changes in collagen are a tipoff to bone health
Dec 22, 2009 |
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Using a technique that provides detailed images of nanoscale structures, researchers at the University of Michigan and Detroit's Henry Ford Hospital have discovered changes in the collagen component of bone ...
Thermochemical nanolithography now allows multiple chemicals on a chip
Dec 16, 2009 |
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(PhysOrg.com) -- Scientists at Georgia Tech have developed a nanolithographic technique that can produce high-resolution patterns of at least three different chemicals on a single chip at writing speeds of ...
Peptides control crystal growth with 'switches, throttles and brakes'
Nanotechnology / Bio & Medicine
Nov 23, 2009 |
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(PhysOrg.com) -- By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research ...
A New Glance on Microscopic Images
Sep 16, 2009 |
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A doctoral student at the research center Forschungszentrum Dresden-Rossendorf (Germany) suggests interpreting the images generated by Kelvin probe force microscopy in a new way. She recently published her ...
Friction force differences offer new means for manipulating nanotubes
Nanotechnology / Nanomaterials
Sep 15, 2009 |
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(PhysOrg.com) -- Nanotubes and nanowires are promising building blocks for future integrated nanoelectronic and photonic circuits, nanosensors, interconnects and electro-mechanical nanodevices. But some fundamental ...
Scientists Image the 'Anatomy' of a Molecule (w/ Video)
Aug 28, 2009 |
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(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 ...
Discovery to aid study of biological structures, molecules
Nanotechnology / Bio & Medicine
Aug 11, 2009 |
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(PhysOrg.com) -- Researchers in the United States and Spain have discovered that a tool widely used in nanoscale imaging works differently in watery environments, a step toward better using the instrument ...
Single-molecule technique captures calcium sensor calmodulin in action
Aug 10, 2009 |
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It's well known that the protein calmodulin specifically targets and steers the activities of hundreds of other proteins - mostly kinases - in our cells, thus playing a role in physiologically important processes ...
Protein folding: Diverse methods yield clues
Aug 06, 2009 |
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(Aug. 6, 2009) -- Rice University physicists have written the next chapter in an innovative approach for studying the forces that shape proteins -- the biochemical workhorses of all living things.
New Advance in Revolutionary 'Bullet Fingerprinting' Technique
Chemistry / Analytical Chemistry
Jul 12, 2009 |
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(PhysOrg.com) -- 'Bullet fingerprinting' technology developed at the University of Leicester in collaboration with Northamptonshire Police is now being advanced in new ways.
Atomic force microscope research could lead to better health care
Jul 06, 2009 |
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Where biology, chemistry and physics intersect, a Kansas State University professor expects to find applications to improve human health.
Scientists develop novel ion trap for sensing force and light
Jul 01, 2009 |
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Miniature devices for trapping ions (electrically charged atoms) are common components in atomic clocks and quantum computing research. Now, a novel ion trap geometry demonstrated at the National Institute ...
Streaming sand grains help define essence of a liquid (w/ Video)
Jun 24, 2009 |
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University of Chicago researchers recently showed that dry granular materials such as sands, seeds and grains have properties similar to liquid, forming water-like droplets when poured from a given source. ...
Scientists directly measure charge states of atoms using an atomic force microscope
Jun 23, 2009 |
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(PhysOrg.com) -- IBM scientists in collaboration with the University of Regensburg, Germany, and Utrecht University, Netherlands, for the first time demonstrated the ability to measure the charge state of ...
New Danish research shows how oil gets stuck underground
Space & Earth / Earth Sciences
May 11, 2009 |
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It is a mystery to many people why the world is running out of oil when most of the world's oilfields have only been half emptied. However some of the oil that has been located is trapped as droplets of oil in small cavities ...
