Electrochemical Sensors

Electrochemical sensors are the devices that continuously monitor the functioning of a system by combining an artificially determined layer with an electrochemical transducer. Electrochemical sensors of the modern era make use of many characteristics to assess the presence or absence of a physical, chemical, or natural barrier. Potentiometric, amperometric, and conductometric probes are at the forefront of sensors that have advanced to the stage of commercialization. These sensors have found commercial applications in numerous important fields including clinical, industrial, environmental, and agricultural research. Electrochemical sensors are intriguing due to their high detectability, ease of testing, and low cost. Recent advances in nanostructured materials and the diminution of sensor size have resulted in enhanced sampling, sensitivity, stability, and detection time. This chapter introduces electrochemical sensors, discussing their three most prevalent types, current applications, and anticipated future developments.