The irradiation of a metal surface with light or electrons can result in the formation of coherent electronic oscillations called surface plasmons, an effect ideal for applications such as optical communications on optoelectronic ...
General Physics
Jun 10, 2011
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Adding a few graphene layers onto the conventional gold-film SPR biosensor will boost up its sensitivity dramatically. The improved sensitivity comes from the graphene layer’s increased adsorption of biomolecules and ...
Nanophysics
May 5, 2011
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With its promise of superfast computers and ultrapowerful optical microscopes among the many possibilities, plasmonics has become one of the hottest fields in high-technology. However, to date plasmonic properties have been ...
Nanophysics
Apr 18, 2011
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Optical chips are the latest innovation in silicon technology with the potential to revolutionize telecommunications. Their operation relies on several key components, including light-emitting devices, waveguides and photodetectors. ...
Optics & Photonics
Mar 28, 2011
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Lasers have revolutionized the communications and medical industries. They focus light to zap tumors and send digital TV signals and telephone communications around the world.
General Physics
Jan 13, 2011
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In the war against infectious disease, identifying the culprit is half the battle. Now, research professor Shaopeng Wang and his colleagues from the Biodesign Institute at Arizona State University, describe a new method for ...
Biochemistry
Aug 24, 2010
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Researchers at the nanotechnology research center Imec (Belgium) have demonstrated biosensors based on novel nanostructure geometries that increase the sensitivity and allow to detect extremely low concentrations of specific ...
Bio & Medicine
Jun 23, 2010
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(PhysOrg.com) -- Using easily prepared gold nanocages that are able to escape from the blood stream and accumulate in tumors, a team of investigators from the Washington University in St. Louis has shown that they can use ...
Bio & Medicine
Apr 23, 2010
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The self-assembling properties of the DNA molecule have allowed for the construction of an intriguing range of nanoscale forms. Such nanoarchitectures may eventually find their way into a new generation of microelectronics, ...
Bio & Medicine
Mar 19, 2010
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(PhysOrg.com) -- Researchers at Washington University in St. Louis have developed a polymer-coated gold nanocage that not only opens in response to light to release a small amount of a drug payload, but then closes when the ...
Bio & Medicine
Nov 19, 2009
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