Label-Free Electrochemical Sensing Method for On-Site Self Diagnosis

摘要

The present disclosure provides a method for measuring impedance according to the concentration of an antigen in a body fluid using an unlabeled electrochemical sensor, wherein the electrochemical sensor includes a working electrode, wherein the working electrode comprises an antibody immobilized on the surface of the working electrode. wherein the method comprises: immersing a working electrode in the bodily fluid; and measuring an impedance change of the immersed working electrode using an electrochemical impedance spectroscopy (EIS) method. Measuring the impedance according to the concentration of the antigen in the body fluid using an unlabeled electrochemical sensor A method is provided, and a method for on-site self-diagnosis of a disease using the method is provided.