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New way to make sensors that detect toxic chemicals
Date:8/14/2009

ome out of the study is their discovery of the reaction pathway -- that is, the various chemical steps that take place inside the pressure cooker during the synthesis of the material.

Now that the researchers know the reaction pathway, they can devise ways to add chemical dopants to the nanoparticles. Dopants would change the function of the sensor -- for instance, to speed up the response rate.

A one-gram batch of nickel oxide nanoparticles costs about $5.00 to make; one chip carries four nanograms (billionths of a gram) of material, so each sensor costs only pennies to fabricate.

Other applications could include exhaust or pollution monitoring and air quality monitoring.


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Contact: Patricia Morris
Morris.692@osu.edu
614-247-8873
Ohio State University
Source:Eurekalert

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