Electrochemical sensors and biosensors allow researchers to measure small quantities of chemicals or physicochemical parameters in experimental settings. This is achieved with the use of sensitive electrodes which can detect small changes in electrical signals. Due to this sensitivity, they have diverse applications in engineering and medicine. Newer versions of sensors offer greater sensitivity and accuracy with the help of nanomaterials incorporated in electrodes used in the sensor.  Chitosan nanoparticles can be particularly interesting…