Monitoring volatiles and flammable gases without electronics


Keywords: , , , ,

A sensor that integrates the detection and transduction of the signal to a display is presented in this work. The device comprises a holographic grating embed in a polymer. The polymer is an elastomer that interacts with hydrocarbon gases and volatile organic compounds in a specific manner. As the polymer interacts with the molecules a conformational change alters the optical grating detected as a change in display wavelength or color. The changes can not only be accurately measured with a reflectometer for different concentrations or type of molecules, but also as changes in color easily detected with the naked eye.

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Journal: TechConnect Briefs
Volume: 3, Nanotechnology 2011: Bio Sensors, Instruments, Medical, Environment and Energy
Published: June 13, 2011
Pages: 549 - 552
Industry sectors: Advanced Materials & Manufacturing | Medical & Biotech
Topic: Environmental Health & Safety of Nanomaterials
ISBN: 978-1-4398-7138-6