Intraoral Sodium Sensor (image) Georgia Institute of Technology Share Print E-Mail 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 Share Print E-Mail 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.