Trace chemical or biological elements can be accurately detected and monitored in the field or at the point of care through use of this new quick, cost-effective platform technology based on a hybrid chemical-electronic detector. Analytes can be measured according to the electrical current changes they induce with high specificity and accuracy at parts-per-billion (ppb) levels.
Transducer which may be developed to suite: Medical diagnostics: point of care, real time diagnostics of chemical and biological substances. Environmental watch: monitoring air or water pollution, testing for food poisoning. Chemical warfare: detection of chemical agents and explosives. Industry: monitoring industrial processes at real time.
Researchers at the Weizmann Institute have developed a platform technology based on novel hybrid chemical-electronic detector MOCSER (MOlecular Controlled SEmiconductor Resistor). The technology is based on a new type of a Gallium Arsenide (GaAs) electronic device covered with a monolayer of sensing molecules. The detection is achieved by measuring the current changes created due to analyte binding. The researchers have succeeded in showing high sensitivity and accuracy of the device down to parts per billion (ppb) levels. They have also demonstrated the possibility for broad applications of this detector by tailoring different sensing molecules on it and measuring various substances.