Drug-Delivering Micromotors Fueled by Stomach Acid (video) University of California - San Diego Share Print E-Mail Loading video... Caption Nanoengineers at the University of California San Diego have demonstrated for the first time using micromotors to treat a bacterial infection in the stomach. These tiny vehicles, each about half the width of a human hair, swim rapidly throughout the stomach while neutralizing gastric acid and then release their cargo of antibiotics at the desired pH. Credit Laboratory for Nanobioelectronics at UC San Diego Usage Restrictions Please credit Laboratory for Nanobioelectronics at UC San Diego 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.