Tiny Sensor Mounted on a Tooth (IMAGE) Tufts University Caption The 2x2 mm sensor monitors ingested fluids and transmits information wirelessly. Credit Fio Omenetto, Ph.D., Tufts University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.