A tiny sensor on your tooth could help keep you healthy
https://gyazo.com/11cb2eab03c0a01e1fd2e2e5e99b2f0c
The 2-millimeter-by-2-millimeter devices (pictured) are made up of a film of polymers that detects chemicals in its environment. Sandwiched between two square-shaped gold rings that act as antennas, the sensor can transmit information on what's going on—or what's being chewed on—in our mouth to a digital device, such as a smartphone.
歯に貼り付けるセンサー