Subcellular-sized devices (IMAGE) Massachusetts Institute of Technology Caption This image shows the researchers' subcellular-sized devices, which are designed to gently wrap around different parts of neurons, such as axons and dendrites, without damaging the cells. The devices could be used to measure or modulate a neuron's electrical activity. Credit Pablo Penso, © Marta Airaghi Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.