Nanofibers at work (VIDEO) Northwestern University This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Nanofibers containing molecules that bear two different bioactive signals (green and orange) more effectively engage cell receptors (yellow and blue) as a result of the molecules’ fast motion. Credit Samuel I. Stupp Laboratory/Mark Seniw/Northwestern University Usage Restrictions Credit Northwestern 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.