Patent ID: 8580200
Filing Date: 2013-11-12
Classification: G01N

Abstract:
1. A method for preparing a device for detecting one or more analytes and detecting the one or more analytes, the method comprising: generating electromagnetic radiation from a broadband source; coupling the electromagnetic radiation generated by the broadband source to the device for detecting one or more analytes, wherein the device comprises: coating the one or more target binding molecules onto the array of photonic crystal micro cavities; measuring a first transmission spectrum, wherein measuring the first transmission spectrum comprises measuring the electromagnetic radiation from the output ridge waveguide of the device; identifying a first minimum of the first transmission spectrum; exposing the device to the one or more analytes to allow the selective binding of the one or more analytes to the one or more target binding molecules coated on the array of photonic crystal microcavities; measuring a second transmission spectrum, wherein measuring the second transmission spectrum comprises measuring the electromagnetic radiation from the output ridge waveguide of the device; identifying a second minimum of the second transmission spectrum; comparing the second minimum of the second transmission spectrum with the first minimum of the first transmission spectrum; and identifying the one or more analytes from the comparison between the second minimum of the second transmission spectrum with the first minimum of the first transmission spectrum.