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Posts Tagged ‘NCEM’

Engineering Nanoparticles for Maximum Strength

October 20, 2008

Individual nanocrystals are remarkably strong. But under stress, complex nanostructures quickly fail because of internal strains. New research at the National Center for Electron Microscopy on hollow nanospheres shows that engineering can greatly increase the strength of complex nanoparticles. The results could lead to stronger nanostructures and large-scale alloys as well.

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Closest Look Ever at Graphene: Stunning Images of Individual Carbon Atoms From TEAM 0.5 microscope

September 9, 2008

Hailed as the world’s most powerful transmission electron microscope, TEAM 0.5 is living up to expectations. Berkeley Lab researchers have produced stunning images of individual carbon atoms in graphene, the two-dimensional crystalline form of carbon that is highly prized by the electronics industry.

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Debut of TEAM 0.5, the World’s Best Microscope

January 22, 2008

Contact: Paul Preuss, (510) 486-6249, paul_preuss@lbl.gov

BERKELEY, CA — TEAM 0.5, the world’s most powerful transmission electron microscope — capable of producing images with half‑angstrom resolution (half a ten-billionth of a meter), less than the diameter of a single hydrogen atom — has been installed at the Department of Energy’s National Center [...]

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Smaller is Stronger — Now Scientists Know Why

January 2, 2008

Contact: Paul Preuss, (510) 486-6249, paul_preuss@lbl.gov

BERKELEY, CA — As structures made of metal get smaller — as their dimensions approach the micrometer scale (millionths of a meter) or less — they get stronger. Scientists discovered this phenomenon 50 years ago while measuring the strength of tin “whiskers” a few micrometers in diameter and a few [...]

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In Nature, Proteins Sweep up Nanoparticles

June 14, 2007

Contact: Dan Krotz, (510) 486-4019, dakrotz@lbl.gov

BERKELEY, CA — Here’s a pollution-control tip from nature: Deep inside a flooded mine in Wisconsin, scientists from several institutions including the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered a world in which bacteria emit proteins that sweep up metal nanoparticles into immobile clumps. Their [...]

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