How Biofilms Form (IMAGE) Yale University Caption This is an image of cells forming a biofilm, a bacterial cell community protected from environmental stress and a source of antibiotic resistance, in a new gel device developed in the Levchenko lab. Credit Levchenko Lab/Yale 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.