Nanoparticle array sensors

Details Nanoparticle array sensors Nanoparticle array sensors

G - Physics

01

N

G01N 27/04 (2006.01)

Patent

CA 2663126

An effective sensor for indicating exposure to a toxic gas includes a non- conductive, inert substrate such as glass or polyethylene, a two-dimensional film of nanoparticles of a conductive metal such as silver or copper on the substrate and an electrode connected to each end of the film. When an electrical current passes through the film and the sensor is exposed to a toxic gas, changes in the electrical resistance of the film provides an indication of the presence of the toxic gas.

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