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Latest Scanning transmission electron microscopy Stories

Creating Nanowires Only Three Atoms Wide With An Electron Beam
2014-04-28 03:12:14

David Salisbury, Vanderbilt University Junhao Lin, a Vanderbilt University Ph.D. student and visiting scientist at Oak Ridge National Laboratory (ORNL), has found a way to use a finely focused beam of electrons to create some of the smallest wires ever made. The flexible metallic wires are only three atoms wide: One thousandth the width of the microscopic wires used to connect the transistors in today's integrated circuits. Lin's achievement is described in an article published online...

2011-11-01 14:53:54

Proteins caught 'in action' in intact cells using new electron microscopy technique Proteins are literally the movers and the shakers of the intracellular world. If DNA is the film director, then they are the actors. And much can be learned about cell function — and dysfunction — by watching proteins on the move. Until now, scientists have only been able to see this process indirectly. Now researchers at Vanderbilt University in Nashville, Tenn., have come up with a...

2010-03-25 09:54:25

ORNL Z-contrast microscope first to resolve, identify individual light atoms OAK RIDGE, Tenn. -- Using the latest in aberration-corrected electron microscopy, researchers at the Department of Energy's Oak Ridge National Laboratory and their colleagues have obtained the first images that distinguish individual light atoms such as boron, carbon, nitrogen and oxygen. The ORNL images were obtained with a Z-contrast scanning transmission electron microscope (STEM). Individual atoms of carbon,...

2009-11-09 16:16:09

Researchers from Lehigh and Rice universities combine electron microscopy and spectroscopy techniques to shed new light on a tungstated zirconia catalyst. The catalytic processes that facilitate the production of many chemicals and fuels could become much more environmentally friendly thanks to a breakthrough achieved by researchers from Lehigh and Rice Universities. In an article published Nov. 8 by the journal Nature Chemistry, the researchers report a novel electron microscopy imaging...

2009-10-29 13:09:00

NEW YORK, Oct. 29 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue. Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 http://www.reportlinker.com/p0153912/Worldwide-Optical-Transmission-TEM-and-Scanning-SEM-Electron-Microscope-Market-Shares-Strategies-and-Forecasts-2009-to-2015.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=prnewswire...

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2009-04-01 09:09:03

Science fiction fans still have another two months of waiting for the new Star Trek movie, but fans of actual science can feast their eyes now on the first movie ever of carbon atoms moving along the edge of a graphene crystal. Given that graphene "“ single-layered sheets of carbon atoms arranged like chicken wire "“ may hold the key to the future of the electronics industry, the audience for this new science movie might also reach blockbuster proportions. Researchers with the...

2009-01-20 12:25:22

U.S. scientists say they have developed a technique that uses a scanning transmission electron microscope to see whole cells in liquid. The researchers said their new technique -- called liquid STEM -- uses a micro-fluidic device with electron transparent windows to enable the imaging of cells in liquid with significantly improved resolution and speed compared with existing imaging methods. Liquid STEM has the potential to become a versatile tool for imaging cellular processes on the...

2009-01-20 11:02:30

Scientists have always wanted to take a closer look at biological systems and materials. From the magnifying glass to the electron microscope, they have developed ever-increasingly sophisticated imaging devices. Now, Niels de Jonge, Ph.D., and colleagues at Vanderbilt University and Oak Ridge National Laboratory (ORNL), add a new tool to the biology-watcher's box. In the online early edition of the Proceedings of the National Academy of Sciences, they describe a technique for imaging whole...

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2008-10-02 13:50:09

Findings may lead to new ways to protect crops and make other useful products Flexible filamentous viruses make up a large fraction of known plant viruses and are responsible for more than half the viral damage to crop plants throughout the world. New details of their structures, which were poorly understood, have been revealed by scientists using a variety of sophisticated imaging techniques at the U.S. Department of Energy's Brookhaven National Laboratory and collaborating institutions....

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2008-02-22 08:05:00

A new electron microscope recently installed in Cornell's Duffield Hall is enabling scientists for the first time to form images that uniquely identify individual atoms in a crystal and see how those atoms bond to one another - and in living color. "The current generation of electron microscopes can be thought of as expensive black and white cameras where different atoms appear as different shades of gray," explained David Muller, Cornell associate professor of applied and engineering...


Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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