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A “robot nose” that can replace sniffer dogs

WASHINGTON: Researchers have developed an artificial "robot nos" device made of living muscle cells that can be used instead of…

WASHINGTON: Researchers have developed an artificial “robot nos” device made of living muscle cells that can be used instead of dogs to cheat drugs and explosives.

The Duke University researchers in the United States developed the prototype based on odor receptors grown from the genes of mice that respond to target odor.

“This idea of ​​an artificial nose has been present for a long time,” says Hiroaki Matsunami, professor at Duke University.

“The receptors were identified in the 1990s, but there are significant technical barriers to producing all of these receptors and monitoring activity so that we can use it in an artificial device,” Matsunami said.

“E-noses” that exist now use different chemical compounds to detect fragrances instead of receptor stem cells, “Matsunami said. He said these units are “not as good as a trained dog”.

“The idea is that, with the help of the actual living receptors, we may develop a device similar to animals,” said Matsunami. “Nobody has achieved it yet, but this study goes against that goal,” he said.

Human, dog and mouse genoms contain about 20,000 genes that contain instructions for creating proteins that smell, taste, feel, move and do everything our bodies do.

If 5% of muscles have been identified as instructions for creating odor receptors, Matsunami said. However, people only use about 2% of their genes to create odor receptors.


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