Photo 1 (IMAGE) Worcester Polytechnic Institute Caption Professor Ulkuhan Guler shows off an early prototype of the miniaturized, wearable device that will one day monitor infants' blood oxygen levels. Credit Worcester Polytechnic Institute Usage Restrictions None 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.