Targeting the detection of explosives, such as improvised explosive devices (IEDs), researchers at Georgia Tech Research Institute (GTRI) have developed a prototype sensor that uses carbon nanotubes (CNTs) for the sensing element. The wireless component, a resonant lightweight antenna, is printed on paper or paper-like material using standard inkjet technology. Researchers think the low-cost sensors could be deployed in large numbers to alert authorities to the presence of IEDs and other explosives.
The newest CNT sensor possesses significantly improved sensitivity to minute ammonia concentrations that should enable the first practical applications to detect trace amounts of hazardous gases in challenging operational environments using inkjet-printed devices.
For more information about GTRI’s prototype wireless sensor, click here.