MEMBRANE PHASE ELECTRODE USING PRINTING AND BIO-MOLECULE DETECTION USING SAME

摘要

The present invention relates to a bio-molecule detection method in which an electrode is formed on a filtering membrane by screen printing to combine filtering characteristics of the membrane and signal measuring ability of the electrode. A membrane electrode according to the present invention provides a novel sensor in which the filtering function of the membrane and the signal measuring ability of the electrode are combined. According to the present invention, a target material is filtered by the membrane and measured, and a metal ion is reduced on the membrane to thereby increase electrical conductivity, with the result that the very small amount of target material may be detected with superior sensitivity using the amplified electrical signals, and quantitative analysis of the target material may be advantageously performed using the amplified electrical signals. In addition, a receptor material may be fixed on the aforementioned electrode, the thus-formed sample passes through the membrane to obtain only the target material that selectively binds to the receptor material, and the thus-obtained target material may be used in detecting electrical signals. The signal measurement of the sensor according to the present invention may use a variety of elements such as electrical conductivity and impedance.