Pseudomonas aeruginosa biofilm (IMAGE) University of Basel Caption The pathogen Pseudomonas aeruginosa forms a protective biofilm. Credit Nano Imaging Lab SNI/Biozentrum, University of Basel Usage Restrictions Only to be used in reporting on the related publication 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.