Right now, Synex’s prototype is the size of a toaster, although Nashman hopes to one day have it fit in your palm. It works by first using MRI to create a 3D image of the finger to find the best spot to test. It then uses something called magnetic resonance spectroscopy to send radio pulses that “excite the different molecules,” Nashman said. The machine then takes the signals from all the molecules and filters for a specific one. Synex will start with glucose testing, but will eventually track things like amino acids, lactate and ketones.
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