Biosensor Measures Glutamate in the Brain (IMAGE) Chalmers University of Technology Caption The researchers succeeded in measuring the activity and quantity of glutamate molecules released by a neuron from a single synaptic vesicle. By constructing a glutamate sensor with an ultra-thin layer of enzyme, they improved the recording speed a thousand times compared to previous technologies. Credit Chalmers University of Technology 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.