Ion-selective sensors allow for the determination and monitoring of the activity/concentration of a high number of inorganic and organic ions in different samples, which make them very attractive for their applications in several fields, such as environmental, clinical, pharmaceutical and industrial analyses. Several transduction principles such as potentiometry (ion-selective electrodes), ion-transfer voltammetry, amperometry, coulometry, photometry and fluorimetry have been used. Some research topics include fundamental and mechanistic studies, incorporation of new ionophores, transducer materials for solid-contact ion-selective electrodes, wearable ion-sensors, point-of-care and in-field applications, as well as electronic tongues, among others.
This Special Issue covers new research on many of the aspects mentioned above and others related.
Optical ion sensors
Solid-contact ion-selective electrodes