New wearable device to monitor tumor size

FAST sensor. Credit: Stanford University

Engineers at Stanford University have created a small, autonomous device with a stretchable and flexible sensor that can be adhered to the skin to measure the changing size of tumors below. The non-invasive, battery-operated device is sensitive to one-hundredth of a millimeter (10 micrometers) and can beam results to a smartphone app wirelessly in real time with the press of a button.

In practical terms, the researchers say, their device—dubbed FAST for “Flexible Autonomous Sensor measuring Tumors”—represents a wholly new, fast, inexpensive, hands-free, and accurate way to test the efficacy of cancer drugs. On …

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