Microgels Assays (IMAGE) Michigan Technological University Caption The team tested their microgel powder against two bacterial strains and two viruses; the hydrogen peroxide generated successfully reduced the strains' ability to infect by at least 99.9 percent. Credit Sarah Bird/Michigan Tech Usage Restrictions please credit 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.