School of Computer Science and Engineering
The Hebrew University of Jerusalem
Optical Bio Sensor of Hazards in Sources of Water
Early warning of chemical hazards that occur in water reservoirs and supply systems is becoming a key issue in maintaining water quality and safety in urban and rural environments.
We present an integrated system for realtime inline monitoring of pollutants in water, based on E-Coli bacteria.
The core of the system is genetically engineered E-coli microbes that respond to the presence of the pollutants by producing a dye material.
The amount of the dye produced is in turn measured in an opto-electronic detection device which consists of a LED and a detector.
The system includes an automatic sampling apparatus consisting of 10 cuvettes in which the bacteria, dried, lie until a sample is taken into a cuvette from the reservoir.
Up to two hours from the time a request is made to sample the water, a result stating whether the water is toxic or not is available then transmitted via WiFi to a base station.