INTEGRATED SENSING ARRAY FOR PRODUCING A BIOFINGERPRINT OF AN ANALYTE

摘要

An integrated array (37) of electronic sensing elements (20, 21, 22) outputs a bio-fingerprint of an analyte. System (10) is preferably constructed of as a series of three layers (35, 75, 100) but need not be so 5 arranged. An upper layer (100) defines a fluid volume or analyte chamber (40); a middle layer (35) contains the sensing elements (20, 21, 22); and a third layer (75) contains electronic readout elements. The analyte chamber (40) contains an electrolyte and the analyte to be detected. The sensing elements (20, 21, 22) are optimized for maximum 10 detection sensitivity in the minimum response time. The response of each sensing element (20, 21, 22) is read out by a dedicated sensing electrode (30, 31, 32). Around each electrode (30, 31, 32) is a control ring (70). The potential of the control ring (70) is set to attract analytes of interest to the sensing elements (20, 21, 22).