Patent ID: 6280586
Filing Date: 2001-08-28
Classification: G01N

Abstract:
A measuring device (1) for measuring the presence of at least one component (3) contained in an analyte (2), said device comprising a plurality of sensors including at least one reference sensor and at least one electrical sensor (4) each having a measurement output connectable to an evaluating device, wherein the electrical sensor (4) and the reference sensor each have an electrical measurement structure (6) located on a common substrate (5), the measurement structure (6) of the electrical sensor is connected to at least one function-specific plant or animal receptor cell (7) serving as a biological sensor, wherein each electrical sensor measures the analyte (2) under investigation by measuring a morphologic or physiologic property of the receptor cell (7), wherein provided between the receptor cell and the measurement structure (6) is a structured, biocompatible micro porous interlayer (13) to which the receptor cell at least partially adheres, the measurement structure of the reference sensor being free of connections to function-specific receptor cells (7), the reference sensor and the at least one electrical sensor being arranged on the common substrate (5) to form a sensor array (22), whereby a change of the property is indicative of the presence of the component in the analyte.