When you want to go for a run or play, it is a luxury for the patient. One day, if the symptoms of epilepsy disappear or the paraplegic paraplegia may go again? Or who is missing a leg can control his thought robot's limb.
All of these situations can occur because scientists are developing sensors that only the size of dust particles will work within the body to keep us from transmitting signals, stimulating the brain or muscles, or to monitor certain organs at work.
Engineers at the University of California, Berkeley, have built a wireless sensor that can implant in the body and monitor everything from muscle, nerve and organ dust-sized. Sensors, which are also known as "nerve dust," have been implanted in muscle and rat peripheral nerves, but scientists have believed that they can be used to stimulate muscles and nerves that may treat inflammation or epilepsy.
The sensor is placed in a 1 mm cube, about the size of a grain of sand. However, researchers are trying to shrink it down to 50-micron cubes on each side. This is about 2 inches. Once the sensors are small, researchers say they can be implanted in the brain as well as in muscles or nerves. The sensor will be powered by a piezoelectric crystal that can ultrasonically convert the outside of the body to the on-board transistor that is used to operate the sensor.
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