Patent ID: 8673576
Filing Date: 2014-03-18
Classification: G01N

Abstract:
1. A method for determining the presence or absence of a complex of a first reagent and a second reagent in a mixture comprising determining a first reaction rate change at a first wavelength and a second reaction rate change at a second wavelength upon mixing the first reagent with the second reagent, wherein the first reagent or the second reagent is conjugated to a metal nanoparticle or nanoshell, wherein the first wavelength is within an absorbance wavelength region and the second wavelength is within an absorbance wavelength region or scattering wavelength region of the absorption spectrum for the metal nanoparticle or nanoshell, and wherein the first reaction rate change and the second reaction rate change are indicative of the presence or absence of the complex of the first reagent and the second reagent.