Nitrogen Dioxide Gas Sensor

Case ID:
PRAS-02
Web Published:
7/20/2009
Description:
PSU researchers have developed a new chemical gas sensor capable of detecting nitrogen dioxide (NO2) at levels less than 100ppb (two orders of magnitude more sensitive than current chemiluminescent based NOx sensors), having a dynamic linear range of parts per million to parts per billion, and a speed of detection of 60-120 seconds.
 
Unlike existing chemical gas sensors, the PSU technology uses a special nanocomposite that undergoes selective linear changes in electrical resistance/conductance in the presence of NO2 in a near instant response.
 
Prototypes of the sensor are under development.
Patent Information:
Category(s):
Chemistry
For Information, Contact:
Joseph Janda
Director
Portland State University
janda@pdx.edu
Inventors:
Shalini Prasad
Linda George
Divakara Meka
Keywords:
Electronics
Nanotechnology
Sensors
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