Chemical Sensor Arrays for Remote Sensing

Continuous real-time monitoring is broadly applicable to marine environmental research, environmental monitoring, and assurance of drinking water quality. Currently, the common procedure is to collect samples in the field and return them to the laboratory for analysis, which cannot possibly capture chemical data in real-time. Photolithographically processed silicon is suitable for manufacturing integrated arrays that contain a large number of electrochemical sensors. These arrays, which include sensors for both physical and chemical measurements, can be produced at low cost and treated as disposables. The objective of this project is to utilize Sensicore¿s current silicon-based electrochemical sensor array platform to generate sensor arrays that can continuously monitor chloride (Cl-), ammonium-nitrogen (NH4+) and oxygen (O2) in fresh and saltwater. Ion selective electrodes (ISEs) will be evaluated for the determination of chloride and ammonium-nitrogen whereas a voltammetric sensor will be evaluated for the determination of oxygen.