Biosensing Surgical Gloves (IMAGE) Tufts University Caption Silk inks doped with bacteria-sensing agents were printed on surgical gloves using inkjet technology. The word "contaminated" changed from blue to red after exposure to E. coli. Credit Omenetto Laboratory/Tufts University Usage Restrictions For non-commercial purposes with attribution 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.