Patent ID: 6670115
Filing Date: 2003-12-30
Classification: G01N,Y10S

Abstract:
A device for detecting an analyte in a liquid sample, which device comprises:a) a solid support; b) an electrosensor immobilized on said solid support, said electrosensor comprises a working electrode and another electrode used as auxiliary and/or reference electrode; c) a capture reagent immobilized on said working electrode, said capture reagent binds to an analyte, if said analyte is present in a liquid sample; and d) conductive leads for connecting said electrodes to a readout device for electrochemical measurement, wherein the device further comprising a sample application area that is separate, but in fluid communication with the electrosensor via a wicking member having an open mesh structure that does not comprise an immobilized capture reagent, and wherein the wicking member having an open mesh structure provides for two dimensional transport of fluids from the application area to the electrosensor and faster flow rate, lower background noise and higher signal to noise ratio compared to a wicking member not having an open mesh structure.