New $150 gadget lets your smartphone detect cancer with laboratory precision

While smartphone spectrometers are already being used to help detect cancer, they have only been able to evaluate one sample at a time, making the work slow and tedious. A breakthrough by a Washington State University research team led to the creation of a low-cost multichannel smartphone spectrometer that uses optical sensors to scan multiple samples simultaneously. The team, led by Lei Li, assistant professor in the School of Mechanical and Materials Engineering, found their spectrometer to be highly accurate and sensitive, thanks to the custom prism array designed especially for this device.

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