Popping micelles (IMAGE) DOE/Pacific Northwest National Laboratory Caption When specially prepared micelles (pepper-sized particles on the left) interact with a molecular analog of the Covid-causing virus (right), the micelles explode, ejecting their contents at 200 miles per hour. The yellowish-brown cloud that results is part of an electronic signal that the virus is present. Credit Video by Caleb Allen | Pacific Northwest National Laboratory Usage Restrictions Please use credit info. 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.