NO2 Sensitive Layer (IMAGE) RMIT University Caption This is an electron microscope image of the NO2 sensitive layer made of atomically thin flakes of tin disulphide, magnified 500,000 times. Credit RMIT 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.