Effect of Nanotubes on E. coli (IMAGE) Yale University Caption E.coli incubated for one hour on support matrix in the absence (1) or in the presence (2) of nanotubes. Credit Yale University Usage Restrictions Use with credit given 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.