Injectable Alcohol Sensor on Penny (IMAGE) University of California - San Diego Caption Alcohol monitoring chip is small enough to be implanted just under the surface of the skin. Credit David Baillot/UC San Diego Jacobs School of Engineering Usage Restrictions Please credit: David Baillot/UC San Diego Jacobs School of Engineering 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.