Impedimetric biosensors are a type of electrochemical sensor that can detect changes in capacitance and conductance on the surface of an electrode. These biosensors can be classified into different types based on the biorecognition element used, including cellbased impedimetric biosensors, immunobinding-based biosensors, nucleic acid-based biosensors, and enzyme-based biosensors. The distinct characteristics of each type of impedimetric biosensor, such as sensitivity, selectivity, and reproducibility, enable them to detect multiple biological molecules. Thanks to their unique properties, impedimetric biosensors have found widespread use in a variety of applications.