They melt in your brain, not in your hand.
Scientists at the University of Illinois at Urbana-Champagne have created a sensor they hope can one day be implanted in the brains of patients to monitor and wirelessly transmit data on pressure and temperature within the skull for a time, and then simply resorb into the body. Researchers believe the new approach could help make physical therapy less complicated for individuals recovering from brain injury or surgery (no more external wires in the way) and reduce the incidence of infection, allergic reaction, or other complications associated with implanted sensors that require external wiring and eventual surgical removal.
Described in a report in Science Daily as “smaller than a grain of rice,” the sensors are made of thin sheets of naturally biodegradable silicon that send data to a transmitter “roughly the size of a postage stamp” implanted under the skin of the skull. This transmitter in turn feeds temperature and pressure data to monitoring equipment, all without the use of external wires.
Full story of bioresorbable sensors and brain injuries at APTA