Nanotechnology offers new ways of diagnosing diseases. Most tests require taking a sample, like blood, or urine and then sending them
to a laboratory. Scientists at the Massachusetts Institute of Technology ha
ve developed a sensor that you can swallow. Inside of the sensor are bacteria which have been engineered to glow if they are exposed to a certain chemical. The glowing bacteria then send out a radio signal which is detected using a smart phone. The pill was engineered to detect blood in the gastrointestinal tract, a sign of ulcers. The pill is part biology and part engineering. What happens to the pill after you ingest it is obvious and no information was provided about if this is pill is recycled or well down the drain it goes.