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The next wave of cancer diagnosis techniques might rely on a newly-invented chemical nose. The nose can sniff out different types of cancer by detecting any abnormal cells developing in your body. More »
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This handheld device, which looks sort of like an old-fashioned iron, is one of the most sophisticated artificial noses ever created. It's used in industrial settings where you need to "smell" chemical leaks or toxins to know when they've happened. The best part? This nose, called the ScenTrak, uses a smear of specially-treated human DNA to sense multiple odors. Once the DNA slide is exposed to the air, the machine looks at how the molecules have changed and can determine what the nose has been smelling. We've got images of the DNA slides and a cool patent diagram below. More »
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