Nanoantenna and uses thereof for biosensing
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United States of America Patent
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Jul 9, 2013
Grant Date -
Aug 30, 2012
app pub date -
May 8, 2012
filing date -
Jun 11, 2008
priority date (Note) -
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Abstract
A metal nanoantenna for use in a biosensing device is disclosed. The metal nanoantenna is arranged to exhibit at least two particle plasmon resonances or surface plasmon resonances (SPRs). The nanoantenna is for use in a sensor and allows detection at low concentration of biological components. In one aspect, the nanoantenna can have an asymmetric structural configuration and spectrally separated resonances. In one aspect, there is a location in its structure providing local electromagnetic field enhancement at all of the SPRs. The metal nanoantenna can be used for background free measuring of a quantity of a biological component.
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