alexa Metal particle-enhanced fluorescent immunoassays on metal mirrors.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Matveeva EG, Gryczynski I, Barnett A, Leonenko Z, Lakowicz JR,

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Abstract We present fluoroimmunoassays on plain metal-coated surfaces (metal mirrors) enhanced by metal nanoparticles (silver island films [SIFs]). Metal mirrors (aluminum, gold, or silver protected with a thin silica layer) were coated with SIFs, and an immunoassay (model assay for rabbit immunoglobulin G or myoglobin immunoassay) was performed on this surface using fluorescently labeled antibodies. Our results showed that SIFs alone (on glass surface not coated with metal) enhance the immunoassay signal approximately 3- to 10-fold. Using a metal mirror instead of glass as support for SIFs results in up to 50-fold signal enhancement. This article was published in Anal Biochem and referenced in Journal of Nanomedicine & Nanotechnology

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