Press Releases

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A false-color image of a microelectromechanical device. The diamond-based actuator is colored gold. Click to enlarge. Image credit: Ani Sumant.
Thin diamond films provide new material for micro-machines

Researchers at the Center for Nanoscale Materials at the U.S. Department of Energy’s Argonne National Laboratory and a handful of other institutions around the world have directed their focus to exploring microelectromechanical systems made of a relatively new material known as ultrananocrystalline diamond, which is a smooth and wear-resistant diamond thin film.

July 31, 2014
Graphene's hexagonal structure makes it an excellent lubricant. (Click image to enlarge)
Researchers fight friction and wear with one-atom-thick graphene

Nanoscientist Anirudha Sumant and his colleagues at Argonne’s Center for Nanoscale Materials and Argonne’s Energy Systems division applied a one-atom-thick layer of graphene, a two-dimensional form of carbon, in between a steel ball and a steel disk. They found that just the single layer of graphene lasted for more than 6,500 “wear cycles,” a dramatic improvement over conventional lubricants like graphite or molybdenum disulfide.

October 13, 2014
The surface acoustic wave (SAW) sensor detects frequency changes in waves that propagate through its crystalline structure. This makes it ideal for detecting the presence of chemicals or biomarkers present in a liquid or gas. For example, it can detect cancer proteins attached to a receptor on the sensor surface. Image credit: Shutterstock. (Click image to enlarge)
Researchers develop new acoustic sensor for chemical and biological detection

A new microscopic acoustic device that has been dramatically improved by scientists at the U.S. Department of Energy’s Argonne National Laboratory has the potential to form a new test for ovarian cancer or the presence of a particular chemical.

November 17, 2014
This wafer of nanocrystalline diamond provides one example of the technology that AKHAN Semiconductor has licensed from Argonne. Photo courtesy of Ani Sumant. (Click image to enlarge)
Argonne announces new licensing agreement with AKHAN Semiconductor

Argonne has announced a new intellectual property licensing agreement with AKHAN Semiconductor, continuing a productive public-private partnership that will bring diamond-based semiconductor technologies to market.

November 19, 2014
The synchrotron X-ray scanning tunneling microscopy concept allowed Argonne National Laboratory and Ohio University researchers to achieve a recording-breaking resolution of a nanoscale material. They combined of a synchrotron X-ray as a probe and a nanofabricated smart tip as a detector to fingerprint individual nickel clusters on a copper surface at a two-nanometer resolution and at the ultimate single-atomic height sensitivity. And by varying the photon energy, researchers successfully measured photoionization cross sections of a single nickel nanocluster – opening the door to new opportunities for chemical imaging of nanoscale materials. (Click image to enlarge)
Powerful new technique simultaneously determines nanomaterials' chemical makeup, topography

A team of researchers from the U.S. Department of Energy's Argonne National Laboratory and Ohio University have devised a powerful technique that simultaneously resolves the chemical characterization and topography of nanoscale materials down to the height of a single atom.

December 2, 2014
This picture combines a transmission electron microscope image of a nanodumbbell with a gold domain oriented in  direction. The seed and gold domains in the dumbbell in the image on the right are identified by geometric phase analysis. Image credit: Soon Gu Kwon. (Click image to enlarge)
Atomic 'mismatch' creates nano 'dumbbells'

Thanks to a new study from the U.S. Department of Energy’s Argonne National Laboratory, researchers are closer to understanding the process by which nanoparticles made of more than one material – called heterostructured nanoparticles – form.

December 4, 2014