Monday, June 22, 2009
University of Pittsburgh researchers have developed a fluorescent substance that glows green under an ultraviolet light after being exposed to ozone. The Pitt researchers report that their detector may one day function as a consumer device to measure ozone for those with asthma or other conditions. The ozone detection substance is significant because other attempts at identifying ozone often lead to false positives. The University of Pittsburgh team was able to prevent false positives by changing the way in which the ozone is identified. Previous methods tested oxidation of ozone, but other chemicals or substances undergo oxidation. The new method enables ozone to react with the detection probe to create a compound that produces the green ultraviolet glow.
Posted by wduqnews at 3:19 PM