Probing How Microbiomes Affect Our Health (IMAGE) DOE/Pacific Northwest National Laboratory Caption Chemists make customized chemical probes that act as bait for active proteins. The technique can be applied to samples from environmental research as well as human waste. Credit Image by Cortland Johnson | Pacific Northwest National Laboratory Usage Restrictions None 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.