E. Coli Healthy and after Treatment with Blue Clay (image) Arizona State University Share Print E-Mail Caption Scanning electron microscope images show (a) healthy E. coli bacteria, and (b) E. coli with damaged cell membranes after treatment with blue clay. Credit Lynda Williams/ASU Usage Restrictions No restrictions when used in connection with reportage on this story. Share Print E-Mail 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.