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Flexible electronics could find applications as sensors, artificial muscles
April 03, 2007Flexible electronic structures with the potential to bend, expand and manipulate electronic devices are being developed by researchers at the U.S. Department of Energy's Argonne National Laboratory and the University of Illinois at Urbana-Champaign. These flexible structures could find useful applications as sensors and as electronic devices that can be integrated into artificial muscles or biological tissues.
In addition to a biomedical impact, flexible electronics are important for energy technology as flexible and accurate sensors for hydrogen.
These structures were developed from a concept created by Argonne scientist Yugang Sun and a team of researchers at the University of Illinois led by John A. Rogers. The concept focuses on forming single-crystalline semiconductor nanoribbons in stretchable geometrical configurations with emphasis on the materials and surface chemistries used in their fabrication and the mechanics of their response to applied strains.
"Flexible electronics are typically characterized by conducting plastic-based liquids that can be printed onto thin, bendable surfaces," Sun said. "The objective of our work was to generate a concept along with subsequent technology that would allow for electronic wires and circuits to stretch like rubber bands and accordions leading to sensor-embedded covers for aircraft and robots, and even prosthetic skin for humans.
"We are presently developing stretchable electronics and sensors for smart surgical gloves and hemispherical electronic eye imagers," he added.
The team of researchers has been successful in fabricating thin ribbons of silicon and designing them to bend, stretch and compress like an accordion without losing their ability to function. The detailed results of these findings were published in the Journal of Materials Chemistry paper, " Structural forms of single crystal semiconductor nanoribbons for high-performance stretchable electronics,\\\
DOE/Argonne National Laboratory
"Flexible electronics are typically characterized by conducting plastic-based liquids that can be printed onto thin, bendable surfaces," Sun said. "The objective of our work was to generate a concept along with subsequent technology that would allow for electronic wires and circuits to stretch like rubber bands and accordions leading to sensor-embedded covers for aircraft and robots, and even prosthetic skin for humans.
"We are presently developing stretchable electronics and sensors for smart surgical gloves and hemispherical electronic eye imagers," he added.
The team of researchers has been successful in fabricating thin ribbons of silicon and designing them to bend, stretch and compress like an accordion without losing their ability to function. The detailed results of these findings were published in the Journal of Materials Chemistry paper, " Structural forms of single crystal semiconductor nanoribbons for high-performance stretchable electronics,\\\
DOE/Argonne National Laboratory
Nanoscale Current Events and Nanoscale News RSSWhen a good nanoparticle goes bad
Researchers at Cornell University recently made a major breakthrough when they invented a method to test and demonstrate a long-held hypothesis that some very, very small metal particles work much better than others in various chemical processes such as converting chemical energy to electricity in fuel cells or reducing automobile pollution.
Nanoscale dimensioning is fast, cheap with new NIST optical technique
A novel technique under development at the National Institute of Standards and Technology (NIST) uses a relatively inexpensive optical microscope to quickly and cheaply analyze nanoscale dimensions with nanoscale measurement sensitivity.
New research shows that environmental gains derived from the use of nanomaterials may be offset in part by the processes used to manufacture them.
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New molecules with many branches will help unleash potential of nanotechnology
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JHU chemists devise self-assembling 'organic wires'
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Secret Lives of Catalysts Revealed
The first-ever glimpse of nanoscale catalysts in action could lead to improved pollution control and fuel cell technologies. Scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory observed catalysts restructuring themselves in response to various gases swirling around them, like a chameleon changing its color to match its surroundings.
Engineering Nanoparticles for Maximum Strength
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New research field promises radical advances in optical technologies
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Paperwork: Buckypapers clarify electrical, optical behavior of nanotubes
Using highly uniform samples of carbon nanotubes-sorted by centrifuge for length-materials scientists at the National Institute of Standards and Technology (NIST) have made some of the most precise measurements yet of the concentrations at which delicate mats of nanotubes become transparent, conducting sheets.
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