nanopore ion source (IMAGE) Brown University Caption A Brown research team has developed a new method for transferring ions for mass spectrometry through a tiny capillary with an opening roughly 1,000 times smaller than the width of a human hair. 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.