Magnetic Contaminants (IMAGE) Massachusetts Institute of Technology Caption Dynabeads, which are antibody-coated superparamagnetic beads, served as a strong Raman reporter for the simultaneous capture and detection of pathogenic bacterium such as Salmonella. This image shows the Dynabeads (grey spheres) interacting with Salmonella bacterium (in green). The inset shows the Y-shaped antibodies coating the Dynabeads. Credit Image courtesy of Loza Tadesse, Marissa McDonald, et. al. Usage Restrictions Images are made available to non-commercial entities, press and the general public under a Creative Commons Attribution Non-Commercial No Derivatives license. You may not alter the images provided, other than to crop them to size. A credit line must be used when reproducing images 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.