Bijel Filter with Detail and Scale Bars (IMAGE) University of Pennsylvania Caption A tube-shaped bijel filter. Researchers at the University of Pennsylvania's School of Engineering and Applied Science have a new way of making polymer filters out of bijels, or bicontinuous interfacially jammed emulsion gels, that allow functional nanoparticles to adhere to the surface of the polymer. They tested their method with nanoparticles that prevent the build-up of biofilms. Credit University of Pennsylvania 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.