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  • Title: Specific detection of proteins using photonic crystal waveguides.
    Author: Buswell SC, Wright VA, Buriak JM, Van V, Evoy S.
    Journal: Opt Express; 2008 Sep 29; 16(20):15949-57. PubMed ID: 18825232.
    Abstract:
    Specific detection of proteins is demonstrated using planar photonic crystal waveguides. Using immobilized biotin as probe, streptavidin was captured, causing the waveguide mode cut-off to red-shift. The device was shown to detect a 2.5 nm streptavidin film with a 0.86 nm cut-off red-shift. An improved photonic crystal waveguide sensor design is also described and shown to have a 40% improved bulk refractive index response.
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