Localized surface plasmon resonance (LSPR) sensors of LSPR AG are composed of highly uniform metallic nano-structure arrays and possess several so called active areas that are designed to exhibit specific resonance absorption peaks based on their geometry, arrangement, size and material properties. Even very small changes of the dielectric environment of the metallic nano-structures lead to detectable shifts in the plasmon resonance frequency. This effect can be used to quantify specific molecular binding events by means of applying suitable surface modifications.
To analyze a bioassay: