University of Pittsburgh scientists have developed a fluorescent substance that can detect presence of harmful ozone in body and air. Harmful ozone can be a pollutant and can be irritating to the lungs. The researchers have said that the substance glows bright green when it comes in contact with even small amounts of ozone in the air and in human lung cells. 

The detector can work as a consumer device to measure ozone or as a laboratory device to gain more knowledge on its effect on the human body and its contribution to the immune system. Kazunori Koide, professor in chemistry at Pitt’s School of Arts and Sciences, said that people with respiratory disorders who are sensitive to ozone can monitor the exposure. The device will be useful to those working in industries and laboratories where ozone exposure is more.

The detector is specific to ozone, so that it will prevent giving out false data. People would know when they cross safe levels before having any symptom. The method contains molecule-based probe added to distilled water. Ozone comes in contact with the probe through a process known as ozonolysis. An organic compound called aldehyde is created.

Aldehyde undergoes a reaction called beta elimination to give out a substance that glows bright green. According to the scientists the solution begins to glow 30 minutes of coming into contact with ozone.

The probe was also tested on human lung fluid and blood serum. The samples were exposed to ozone and shined under a laser light, thus showing the device could work on biological samples.