Entrepreneur and UWM researcher invent a virus ‘super-sensor’

Mail delivery to the wrong office in Milwaukee’s Global Water Center sparked a research partnership resulting in a super-sensor that is a finalist in the NASA iTech Challenge competition. Designed by David Rice of Rice Technology LLC and tested with UWM environmental engineer Marcia Silva, the sensor can quickly and inexpensively measure multiple contaminants in water, including viruses, which are so small they pass through bacterial filters. 

The $1 Water Sensor

Dr. Woo Jin Chang, Associate Professor, Mechanical Engineering, has developed a menu of miniature electrochemical sensors that can detect—at low-cost and instantaneously—heavy metals, water acidity, and nutrients in drinking water and other fluids. Three Wisconsin companies have licensed the sensor and now Chang and his co-inventor are collaborating with a California-based company to commercialize it.

Grant funds UWM research to mass-produce water sensors

A graphene-based water sensor developed at the University of Wisconsin-Milwaukee outperforms current technologies for sensing speed, accuracy and sensitivity – exactly what’s needed to continuously monitor drinking water for miniscule traces of contaminants like lead. But the cost of mass-producing these tiny sensors using traditional methods is high.