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79 Current news about the topic transmission electron microscopy

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New catalyst paves the path for ethanol-powered fuel cells

28-Jan-2009

A team of scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, in collaboration with researchers from the University of Delaware and Yeshiva University, has developed a new catalyst that could make ethanol-powered fuel cells feasible. The highly efficient catalyst ...

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PICO and SALVE: Understanding the subatomic world better

DFG-funded instrumentation enables world-class research in electron microscopy

22-Dec-2008

Two new high-resolution transmission electron microscopes, co-financed by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), are set to open up new opportunities for research in physics and materials science. The new research microscopes at RWTH Aachen University and the ...

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Engineering nanoparticles for maximum strength

23-Oct-2008

Because they are riddled with defects, bulk crystalline materials never achieve their ideal strength; nanocrystals, on the other hand, are so small there's no room for defects. Yet while nanocrystalline materials may approach ideal strength in their resistance to stress, most nanostructures have ...

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Scientists peel away the mystery behind gold's catalytic prowess

Bilayer clusters of atoms less than a nanometer in dimension are found to be responsible for a vital oxidation reaction

08-Sep-2008

Few materials have exercised as much of a hold on the human imagination, or on human history, as has gold. But for all of its popular uses – money, medals, jewelry and more – gold's potential as a catalyst lay hidden until the 1980s, when Masatake Haruta and Graham Hutchings independently ...

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New DNA-Based Technique For Assembly of Nano- and Micro-sized Particles

14-Sep-2007

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a new method for controlling the self-assembly of nanometer and micrometer-sized particles. The method, based on designed DNA shells that coat a particle's surface, can be used to manipulate the structure ...

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Using Life's Building Blocks to Control Nanoparticle Assembly

27-Aug-2007

Using DNA, the molecule that carries life's genetic instructions, researchers at the U.S. Department of Energy's Brookhaven National Laboratory are studying how to control both the speed of nanoparticle assembly and the structure of its resulting nanoclusters. Learning how to control and tailor ...

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Pairing Nanoparticles with Proteins

New ways to tag, engineer molecules for energy conversion, drug delivery, and medical imaging

29-Jun-2007

In groundbreaking research, scientists have demonstrated the ability to strategically attach gold nanoparticlesto proteins so as to form sheets of protein-gold arrays. The nanoparticles and methods to create nanoparticle-protein complexes can be used to help decipher protein structures, to ...

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New Methods for Screening Nanoparticles

23-Aug-2006

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have developed a screening method to examine how newly made nanoparticles interact with human cells following exposure for various times and doses. This has led to the visualization of how human cells interact with some ...

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World's smallest universal material testing system

26-Sep-2005

The design, development and manufacturing of revolutionary products such as the automobile, airplane and computer owe a great deal of their success to the large-scale material testing systems (MTS) that have provided engineers and designers with a fundamental understanding of the mechanical ...

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