ON THE NOSE
In the future, an artificial nose might be as simple as a patch that you wear on your skin
like a plaster, or a wristband that changes colour when it detects the chemicals in your sweat, or
it could be a smartwatch. It might even be a handheld electronic nose - an e-nose - tailored to
sniff out the signature smell for the disease.
Prof Krishna Persaud, a chemoreception expert at the University of Manchester, has
developed an e-nose that's about the size of an early mobile phone, and brings us a step closer to
what has until now been science fiction. According to Persaud, we haven't quite managed to
develop a tricorder like the one used by Star Trek's Dr McCoy yet, "but we are looking at a set of
tools right now being developed by researchers around the world, which will help to transform
medicine for the future," he says.
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