Dogs have long been known for being able to identify people by their unique aroma. Now, scientists have come up with an “electronic nose” that is able to mimic that ability.A scent is made up of traces of chemicals that evaporate off the body in what scientists call the "thermal plume". These chemicals can be left behind in sweat and other bodily fluids. The research team has found a way to collect samples that are as free of contamination as possible and analyse them using an "electronic nose" that breaks the scent down into its component chemicals.
In studies funded by the US Army Research Office, scientists found they could identify individuals by looking at the differing combinations of 44 chemical compounds secreted by the body.
Link & Image: Telegraph
Tags: Scent | Aroma | Nose | Electronic Nose
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