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Chemical sensors for detecting hydrogen and volatile organic compounds

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The University of Louisville is seeking a company interested in commercializing novel chemical sensors for detecting Hydrogen and Volatile Organic Compounds (VOCs). Detection of these gasses is important for many applications ranging from alternative fuel production to medicine to public safety and environmental pollution. This novel device is capable of detecting hydrogen down to 800 ppm as well as volatile organic compounds including but not limited to ethanol methanol propanol acetone and toluene down to 30 ppm with fast reversible responses. Additionally the device is simple and inexpensive to construct. APPLICATIONS: - Energy Production (detecting hydrogen or methanol from fuel cells) - Detecting Environmental Pollutants - Homeland Security (detecting explosive vapors) - Medical Diagnostics (detecting exhaled air as an indicator of diabetes lung cancer etc.) - Law Enforcement (use in breathalyzers). Through the use of Pd and Pd alloy nanoparticles coated with organic monolayers conductivity of the chemiresistant film is quickly increased following exposure to Hydrogen or VOCs. The possibility to tailor the organic shell and the metal composition in the nanoparticle films opens new avenues in the field of nanotechnology; specifically in the storage and detection of environmental gases. INTELLECTUAL PROPERTY U.S. patents 8153439 and 8168438 CONTACT For more information or to discuss sponsored or collaborative research and development opportunities please contact: Office of Technology Transfer 502-852-2965


-Low power consumption (battery operation). ADVANTAGES -Low cost mass-production can be achieved due to simple construction -Very high sensitivity and selectivity sensors are capable of fast response reproducibility and stability TECHNOLOGY The sensor is comprised of two or more electrodes affixed to an electrically insulating support with a chemiresistant film comprised of coated metal alloy nanoparticles deposited between the electrodes.

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