Patent ID: 8570518
Filing Date: 2013-10-29
Classification: G01N

Abstract:
1. A test system comprising: (a.) an optical medium providing a light path, wherein the optical medium has a first dimension and a second dimension that is smaller than the first dimension; (b.) a light source positioned adjacent to an end of the optical medium to introduce light directly into the second dimension of the optical medium such that the light emitted from the light source travels along the first dimension of the optical medium; (c.) a binding agent that captures a target complex, wherein the binding agent is positioned to hold the target complex in an evanescent field created by propagation of light along the light path; and (d.) a detector positioned transverse to the light path to detect light emitted from the target complex as a result of an interaction of the target complex with the evanescent field, wherein the binding agent is on a first side of the light path, and the detector is on a second side of the light path, the second side being opposite to the first side.