All-Organic Pulse Oximeter (image) University of California - Berkeley Share Print E-Mail Caption UC Berkeley engineers have created an all-organic pulse oximeter that uses red and green organic light-emitting diodes detected by the organic photodiode. Credit Image by Yasser Khan Usage Restrictions All rights reserved. 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.