Glucose Sensor (IMAGE) Penn State Caption Penn State researchers developed a prototype of a wearable, noninvasive glucose sensor, shown here on the arm. Credit Jia Zhu, Penn State Usage Restrictions non commerial use only License Original 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.