SMALL SANDIA SENSOR SYSTEM (IMAGE) DOE/Sandia National Laboratories Caption A microneedle-based sensor puck designed by Sandia National Laboratories researchers to continuously monitor the levels of a ‘last line of defense’ antibiotic with less pain than a blood draw. Credit Photo by Craig Fritz/Sandia National Laboratories Usage Restrictions Non-commercial and news use with credit License Original 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.