|American researchers at Colorado State University have biologically engineered a plant that turns white when it detects even trace amounts of TNT in the air, Fox News reports. The technology could find its way into airports in just a few years.
|"The idea to make detector plants comes directly from nature," said Professor June Medford, the lead scientist on the team. "Plants can't run or hide from threats, so they've developed sophisticated systems to detect and respond to their environment."
|Still relatively immature, the current technology has a response time of hours but Medford hopes to reduce this down to a few minutes over the next couple of years.
|The redesigned plants are 100 times more sensitive than bomb-sniffing dogs.