The light of fireflies for medical diagnostics

In biology and medicine, we often need to detect biological molecules. For example, in cancer diagnostics, doctors need quick and reliable ways of knowing if tumor cells are present in the patient's body. Although such detection methods exist, they often require a lot of time, work and money. EPFL scientists have chemically tweaked the enzyme responsible for the light of fireflies to make it "sniff out" target biological molecules and give out a light signal. The result is a cheap, simple and...

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