Recognizing fake drugs? Testing water samples ourselves? Checking the quality of air? In the future, it could be possible to do all this using a smartphone in a quick, cost-effective and straightforward way. The process is being made possible by a spectrometer, weighing just one gram, from the Fraunhofer Institute for Electronic Nano Systems ENAS. The aim is to mass-produce this component for around a euro using conventional technologies.
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