Patent ID: 6602702
Filing Date: 2003-08-05
Classification: B01L,G01N

Abstract:
A system for detecting an analyte in a fluid comprising:a light source; a sensor array, the sensor array comprising a supporting member comprising at least one cavity formed within the supporting member; a particle, the particle positioned within the cavity, wherein the particle comprises a biopolymer coupled to a polymeric resin, and wherein the biopolymer undergoes a chemical reaction in the presence of the analyte to produce a signal; a cover positioned over the cavity, wherein the cover is positioned at a fixed distance over the cavity such that a channel is formed between the supporting member and the cover to allow the fluid to enter the cavity via the formed channel, and wherein the fixed distance is such that the cover inhibits dislodgment of the particle from the cavity during use; a detector, the detector being configured to detect the signal produced by the interaction of the analyte with the particle during use; wherein the light source and detector are positioned such that light passes from the light source, to the particle, and onto the detector during use.