Intraoral Sodium Sensor (IMAGE) Georgia Institute of Technology Caption The intraoral electronics with a sodium sensor is based on a breathable elastomeric membrane that resembles a dental retainer. The ultrathin device is flexible and stretchable, and can wirelessly transmit data up to 10 meters. Credit Rob Felt, Georgia Tech 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.