nanopore ion source graphic (IMAGE) Brown University Caption The new nanotube also has the unique ability to transfer ions that are dissolved in water directly into the vacuum of mass spectrometers. Credit Photo provided by Nicholas Drachman. Usage Restrictions Credit must be given to the creator. License CC BY 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.