Oil droplet chase (IMAGE) Penn State Caption A bromooctane oil predator droplet chases a fluorinated oil prey droplet in aqueous surfactant solution. Credit Zarzar Laboratory/Nature Chemistry Usage Restrictions None 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.