Microneedle Optofluidic Device (IMAGE) University of British Columbia Caption Researchers at UBC and the Paul Scherrer Institut (PSI) in Switzerland have created a microneedle drug monitoring system capable of both collecting fluid and performing an analysis to determine the concentration of vancomycin in a patient's bloodstream. Credit Sahan Ranamukhaarachchi 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.