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
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 ...
Making a Point: Picoscale Stability in a Room-Temperature AFM
Mar 25, 2009 |
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(PhysOrg.com) -- Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount ...
Scientists Measure Differences Between Normal and Cancer Cell Surfaces
May 05, 2009 |
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(PhysOrg.com) -- Scientists know that cancerous cells and normal cells have different physical features, but the details of these differences, and why they occur, are not well understood. In a recent edition ...
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 ...
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 ...
New DNA sensors could identify cancer using graphene
Nanotechnology / Bio & Medicine
Apr 13, 2009 |
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Kansas State University engineers think the possibilities are deep for a very thin material.
Tension in the nanoworld: Infrared light visualizes nanoscale strain fields
Jan 12, 2009 |
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(PhysOrg.com) -- A joint team of researchers at CIC nanoGUNE (San Sebastian, Spain) and the Max Planck Institutes of Biochemistry and Plasma Physics (Munich, Germany) report the non-invasive and nanoscale ...
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 ...
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 ...
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 ...
New molecular force probe stretches molecules, atom by atom
Mar 29, 2009 |
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Chemists at the University of Illinois have created a simple and inexpensive molecular technique that replaces an expensive atomic force microscope for studying what happens to small molecules when they are stretched or compressed.
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 ...
Tension in the nanoworld
Jan 23, 2009 |
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(PhysOrg.com) -- A joint team of researchers at CIC nanoGUNE (San Sebastian, Spain) and the Max Planck Institutes of Biochemistry and Plasma Physics (Munich, Germany) report the non-invasive and nanoscale ...
Researchers create atomic-sized one-stop shop for nanoelectronics (Video)
Feb 19, 2009 |
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(PhysOrg.com) -- University of Pittsburgh researchers have created a nanoscale one-stop shop, a single platform for creating electronics at a nearly single-atom scale that could yield advanced forms of such technologically ...
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 ...
