Demulsify 2 (IMAGE) Rice University Caption Rice research scientist Maura Puerto and alumna Qing Wang prepare a sample for testing in the Rice lab of Sibani Lisa Biswal. The team created a method that uses magnetic nanoparticles to pull the last drops of oil from produced water at wells. Credit Jeff Fitlow/Rice University 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.