Patent ID: 8038947
Filing Date: 2011-10-18
Classification: G01N

Abstract:
1. A sensor device comprising an essentially disk-shaped substrate having at least one hole extending through the substrate approximately at a center of the substrate; and having at least one binding entity immobilized in a matrix entrapped in the hole, wherein the binding entity comprises a macromolecule and at least one photoluminescent label, wherein the binding entity comprises at least one binding site that selectively binds at least one target analyte, and is capable of generating a detectable signal upon binding of a target analyte to said binding entity, wherein the target analyte comprises a metal ion; and wherein the sensor device is adapted in shape, size, and placement of the binding entity thereon such that the sensor device is capable of being mounted in an optical system to position the binding entity substantially at a focus of an objective in the optical system to detect the detectable signal.