Southern Illinois University of Carbondale, Ill., has received US Patent No. 8,443,647, " Analyte multi-sensor for the detection and identification of analyte and a method of using the same." The described sensor may include a substrate containing three sensing elements. Each sensing element includes two electrodes seperated by a distance and a nanowire mat that is adjacent to and in contact with these electrodes. According to the patent, the nanowire mats include nanowires that define a percolation network.