Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomohiro Yamada0
Masaya Ogino0
Ryo Kuroda0
Date of Patent
January 26, 2010
Patent Application Number
11948490
Date Filed
November 30, 2007
Patent Primary Examiner
Patent abstract
In a chemical sensing apparatus utilizing a surface plasmon resonance in a small aperture formed in a metal thin film or on a surface of a metal fine particle, a capturing substance is disposed in the small aperture or on the surface of the metal fine particle for capturing a target substance. A marker substance, having a size comparable to that of the small aperture or the metal fine particle is combined with the target substance. As a result, a spectral change is increased in the transmitted light or the scattered light, induced by a surface plasmon resonance and resulting from the capture of the target substance.
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